U.S. patent application number 13/572858 was filed with the patent office on 2013-02-21 for vessel and method for removal and/or installation of at least a part of a sea platform.
This patent application is currently assigned to Heerema Marine Contractors Nederland B.V.. The applicant listed for this patent is Pim Joris MEEUWS. Invention is credited to Pim Joris MEEUWS.
Application Number | 20130045056 13/572858 |
Document ID | / |
Family ID | 46604229 |
Filed Date | 2013-02-21 |
United States Patent
Application |
20130045056 |
Kind Code |
A1 |
MEEUWS; Pim Joris |
February 21, 2013 |
Vessel and method for removal and/or installation of at least a
part of a sea platform
Abstract
A vessel for removal and/or installation of at least a part of a
sea platform includes a support structure and a top side. The
vessel includes a hull and two support arms located at a distance
from each other and attached to the hull. In use, the support arms
extend beyond the hull in a substantially horizontal direction.
Inventors: |
MEEUWS; Pim Joris; (Leiden,
NL) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
MEEUWS; Pim Joris |
Leiden |
|
NL |
|
|
Assignee: |
Heerema Marine Contractors
Nederland B.V.
Leiden
NL
|
Family ID: |
46604229 |
Appl. No.: |
13/572858 |
Filed: |
August 13, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61525287 |
Aug 19, 2011 |
|
|
|
61560966 |
Nov 17, 2011 |
|
|
|
Current U.S.
Class: |
405/195.1 ;
114/65R; 414/803 |
Current CPC
Class: |
B63B 35/003 20130101;
B63B 75/00 20200101 |
Class at
Publication: |
405/195.1 ;
114/65.R; 414/803 |
International
Class: |
B63B 27/16 20060101
B63B027/16; E02B 17/08 20060101 E02B017/08; B63B 9/06 20060101
B63B009/06 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 19, 2011 |
NL |
2007282 |
Claims
1. A vessel for removal and/or installation of at least one part of
a sea platform comprising a support structure and a top side, said
vessel comprising a hull and two support arms located at a distance
from each other and attached to the hull, wherein the support arms
in use extend beyond the hull in a substantially horizontal
direction.
2. The vessel according to claim 1, wherein the support arms are
located above the water surface when carrying said at least one
part of the sea platform.
3. The vessel according to claim 1, wherein support units are
attached to the support arms and/or to the hull, and the support
units comprise a first coupling member.
4. The vessel according to claim 1, wherein the support arms are
movable relative to the hull.
5. A method for removing at least a part of a sea platform
comprising a support structure and a top side, which method
comprises: providing a vessel according to claim 1; positioning the
support arms under the top side such that the support structure is
located between the support arms; raising the support arms relative
to the water surface to fully support the top side with the support
arms; continuing the raising of the support arms to move the top
side at a distance from the support structure; and moving the
vessel away from the support structure in a substantially
horizontal direction while fully supporting the top side with the
support arms.
6. The method according to claim 5, wherein the support arms are
movable relative to the hull; and wherein the method comprises
moving the support arms relative to the hull before the support
arms support the top side.
7. The method according to claim 5, wherein support units are
attached to the support arms and/or to the hull; wherein the
support units comprise a first coupling member; and wherein the
method comprises: attaching cooperating second coupling members to
the top side; and raising the support arms relative to the water
surface to couple the first coupling members with the second
coupling members.
8. The method according to claim 5, wherein support units are
attached to the support arms and/or to the hull; wherein the
support units comprise a first coupling member; wherein the support
arms are movable relative to the hull; and wherein the method
comprises: moving the support arms relative to the hull to couple
the first coupling members with the second coupling members.
9. The method according to claim 5, wherein the method comprises:
positioning the vessel such that the support arms supporting the
top side are positioned above a quay; and transferring the top side
onto the quay.
10. A method for installing at least a part of a sea platform
comprising a support structure and a top side, which method
comprises: providing a vessel according to claim 1, wherein the top
side of the sea platform is fully supported by the support arms,
positioning the top side above the support structure such that the
support structure is located between the support arms; lowering the
support arms relative to the water surface to place the top side on
the support structure; continuing the lowering of the support arms
to fully transfer the weight of the top side to the support
structure and to move the support arms at a distance from the top
side; and moving the vessel away from the support structure in a
substantially horizontal direction.
11. The method according to claim 10, wherein the support arms are
movable relative to the hull; and wherein the method comprises:
moving the support arms relative to the hull after the transfer of
the weight of the top side to the support structure.
12. The method according to claim 10, wherein support units are
attached to the support arms and/or to the hull; wherein the
support units comprise a first coupling member; and wherein
cooperating second coupling members are attached to the top side
and coupled to the first coupling members; and wherein the method
comprises: lowering the support arms relative to the water surface
to decouple the first coupling members from the second coupling
members.
13. The method according to claim 10, wherein the method comprises
fully supporting the top side with the support arms by positioning
the vessel such that the support arms are positioned above a quay
on which the top side is located and transferring the top side on
to the support arms.
14. The method according to claim 5, wherein the support arms are
movable relative to the hull; and wherein the method comprises:
moving the support arms to match the dimensions of the top side
which in use will be supported.
15. The method according to claim 5, wherein the method comprises
installing the support structure while the vessel carries the top
side.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional
Application No. 61/525,287, filed Aug. 19, 2011, and 61/560,966,
filed Nov. 17, 2011, and claims the benefit of Netherlands
Application No. 2007282, filed Aug. 19, 2011, the contents of all
of which are incorporated by reference herein.
FIELD OF THE INVENTION
[0002] The invention relates to a vessel for removal and/or
installation of at least a part of a sea platform comprising a
support structure and a top side.
SUMMARY OF THE INVENTION
[0003] It is an object of the invention to provide an improved or
at least alternative vessel for removing and installing at least a
part of a sea platform comprising a support structure and a top
side.
[0004] This object is achieved by the vessel according the
invention. Said vessel for removal and/or installation of at least
a part of a sea platform comprising a support structure and a top
side comprises a hull and two support arms located at a distance
from each other and attached to the hull, wherein the support arms
in use extend beyond the hull in a substantially horizontal
direction. The support structure may for example comprise a frame
work or one or more support legs. The top side may for example
comprise equipment for exploitation of oil and/or gas from the
seabed or a wind turbine for producing electricity.
[0005] In an embodiment of the vessel according the invention, the
support arms are constructed and arranged to in use fully support
said at least one part of the sea platform.
[0006] In an embodiment of the vessel according the invention, the
support arms extend over a distance between 10 and 100 m beyond the
hull. The support arms may extend over a distance of more than 20 m
beyond the hull
[0007] In an embodiment of the vessel according the invention, the
support arms extend along the hull over a distance between 10 and
100% of the length of the hull. The support arms may extend along
the hull over a distance between 25-75% of the length of the
hull.
[0008] In an embodiment of the vessel according the invention, the
distance between the support arms is between 10 and 100 m.
[0009] In an embodiment of the vessel according the invention, the
support arms are located above the water surface when carrying said
at least one part of the sea platform. The support arms may extend
substantially parallel to each other. The vessel comprises a roll
axis and the support arms may extend substantially parallel to the
roll axis.
[0010] In an embodiment of the vessel according the invention, the
support arms are movable relative to the hull.
[0011] In an embodiment of the vessel according the invention, the
support arms are movable relative to each other.
[0012] In an embodiment of the vessel according the invention, the
support arms are movable in a direction transverse to the roll
axis.
[0013] In an embodiment of the vessel according the invention, the
support arms are movable in a direction perpendicular to the roll
axis.
[0014] In an embodiment of the vessel according the invention, the
support arms are movable along a support trajectory.
[0015] In an embodiment of the vessel according the invention, the
support trajectory extends transverse to the roll axis.
[0016] In an embodiment of the vessel according the invention, the
support trajectory extends perpendicular to the roll axis.
[0017] In an embodiment of the vessel according the invention, the
vessel comprises a support rail and the support arms are moveable
along the support rail.
[0018] In an embodiment of the vessel according the invention, the
support rail extends transverse to the roll axis.
[0019] In an embodiment of the vessel according the invention, the
support rail extends perpendicular to the roll axis.
[0020] In an embodiment of the vessel according the invention, the
support rail defines the support trajectory.
[0021] In an embodiment of the vessel according the invention, the
vessel comprises an arm driving system constructed and arranged to
move the support arms relative to the hull.
[0022] In an embodiment of the vessel according the invention, the
arm driving system moves the support arms along the support
trajectory.
[0023] In an embodiment of the vessel according the invention, the
arm driving system moves the support arms along the support
rails.
[0024] In an embodiment of the vessel according the invention, the
vessel comprises an arm fixating system constructed and arranged to
fixate the support arms relative to the hull.
[0025] In an embodiment of the vessel according the invention, the
support arms are movable from a distance of 10 m between the
support arms to a distance of 100 m between the support arms, and
vice versa.
[0026] In an embodiment of the vessel according the invention, the
vessel comprises at least one docking unit.
[0027] In an embodiment of the vessel according the invention, at
least one docking unit is attached to the support arms.
[0028] In an embodiment of the vessel according the invention, at
least one docking unit is attached to the inner arm surfaces of the
support arms.
[0029] In an embodiment of the vessel according the invention, at
least one docking unit is attached to the hull.
[0030] In an embodiment of the vessel according the invention, at
least one docking unit is attached to the first hull side.
[0031] The vessel according the invention may comprise any feature
or combination of features as defined in the clauses.
[0032] The invention further relates to a method for removing at
least a part of a sea platform comprising a support structure and a
top side, which method comprises; [0033] providing a vessel
according to the invention, [0034] positioning the support arms
under the top side such that the support structure is located
between the support arms, [0035] raising the support arms relative
to the water surface to fully support the top side with the support
arms, [0036] continuing the raising of the support arms to move the
top side at a distance from the support structure, and [0037]
moving the vessel away from the support structure in a
substantially horizontal direction while fully supporting the top
side with the support arms.
[0038] The invention further relates to a method for removing at
least part of a sea platform comprising a support structure and a
top side, which method comprises; [0039] providing a vessel
according to the invention, [0040] connecting the hoisting system
to the support structure, and [0041] raising the support structure
with the hoisting system in a substantially vertical direction
while fully supporting the support structure with the support
arms.
[0042] The invention further relates to a method for installing at
least a part of a sea platform comprising a support structure and a
top side, which method comprises; [0043] providing a vessel
according to the invention, wherein the top side of the sea
platform is fully supported by the support arms, [0044] positioning
the top side above the support structure such that the support
structure is located between the support arms, [0045] lowering the
support arms relative to the water surface to place the top side on
the support structure, [0046] continuing the lowering of the
support arms to fully transfer the weight of the top side to the
support structure and to move the support arms at a distance from
the top side and [0047] moving the vessel away from the support
structure in a substantially horizontal direction.
[0048] The invention further relates to a method for installing at
least a part of a sea platform comprising a support structure and
top side, which method comprises; [0049] providing a vessel
according to the invention, wherein the support structure is
connected to the hoisting system and fully supported by the support
arms, [0050] lowering the support structure with the hoisting
system in a substantially vertical direction such that the support
structure is placed on the seabed or a foundation provided on the
seabed, and [0051] disconnecting the hoisting system from the
support structure.
[0052] In an embodiment of the method according the invention, the
method comprises moving the support arms relative to the hull.
[0053] In an embodiment of the method according the invention, the
method comprises moving the support arms relative to each
other.
[0054] In an embodiment of the method according the invention, the
method comprises moving the support arms towards each other.
[0055] In an embodiment of the method according the invention, the
method comprises moving the support arms away from each other.
[0056] In an embodiment of the method according the invention, the
method comprises moving the support arms in a direction transverse
to the roll axis.
[0057] In an embodiment of the method according the invention, the
method comprises moving the support arms in a direction
perpendicular to the roll axis.
[0058] In an embodiment of the method according the invention, the
method comprises moving the support arms along the support
trajectory.
[0059] In an embodiment of the method according the invention, the
method comprises moving the support arms along the support
rail.
[0060] In an embodiment of the method according the invention, the
method comprises moving the support arms to match the dimensions of
the top side which in use will be supported.
[0061] In an embodiment of the method according the invention, the
method comprises moving the support arms to match the dimensions of
the support structure which in use will be supported.
[0062] In an embodiment of the method according the invention, the
method comprises fixating the support arms relative to the hull in
a support position.
[0063] In an embodiment of the method according the invention, the
method comprises docking the vessel at the support structure via
the at least one docking unit.
[0064] In an embodiment of the method according the invention, the
method comprises moving the support arms relative to the hull after
the docking of the vessel.
[0065] In an embodiment of the method according the invention, the
method comprises fixating the support arms relative to the hull
after the docking of the vessel.
[0066] In an embodiment of the method according the invention, the
method comprises moving said at least one part supported by the
support arms along said support arms.
[0067] In an embodiment of the method according the invention, the
method comprises moving said at least one part supported by the
support arms along the deck of the vessel.
[0068] In an embodiment of the method according the invention, the
method comprises moving said at least one part supported by the
support arms in the direction of the roll axis of the vessel.
[0069] In an embodiment of the method according the invention, the
method comprises moving said at least one part carried by the
hoisting system along said support arms with the driving
system.
[0070] In an embodiment of the method according the invention, the
method comprises moving said at least one part carried by the
hoisting system along the rails.
[0071] In an embodiment of the method according the invention, the
method comprises moving the hoist members along the support arms
with the driving system while carrying the said at least one
part.
[0072] In an embodiment of the method according the invention, the
method comprises placing said at least one part carried by the
hoisting system on the deck of the vessel.
[0073] In an embodiment of the method according the invention, the
method comprises transferring said at least one part from the
vessel onto a quay by positioning the second hull side adjacent to
the quay and moving said at least one part from the vessel to the
quay while moving over the second hull side.
[0074] In an embodiment of the method according the invention, the
method comprises transferring said at least one part from a quay
onto the vessel by positioning the second hull side adjacent to the
quay and moving said at least one part from the quay to the vessel
while moving over the second hull side.
[0075] The method according the invention may comprise any feature
or combination of features as defined in the clauses.
BRIEF DESCRIPTION OF THE DRAWINGS:
[0076] Embodiments of the vessel and method according the invention
will be described by way of example only, with reference to the
accompanying schematic drawings in which corresponding reference
symbols indicate corresponding parts, and in which:
[0077] FIG. 1 schematically shows a view in perspective of an
embodiment of the vessel,
[0078] FIG. 2 schematically shows a side view of the vessel of FIG.
1,
[0079] FIG. 3 schematically shows a top view of the vessel of FIG.
1,
[0080] FIGS. 4-11 schematically show a further embodiment of the
vessel,
[0081] FIGS. 12-14 schematically show a further embodiment of the
vessel,
[0082] FIGS. 15 and 16 schematically show an alternative embodiment
of the vessel of the FIG. 12-14,
[0083] FIG. 17 schematically shows a view in perspective of a
further embodiment of the vessel,
[0084] FIG. 18 schematically shows a view in perspective of a
further embodiment of the vessel,
[0085] FIGS. 19-22 schematically show a further embodiment of the
vessel,
[0086] FIGS. 23-26 schematically show a further embodiment of the
vessel,
[0087] FIG. 27 schematically shows a further embodiment of the
vessel, and
[0088] FIG. 28 schematically shows a further embodiment of the
vessel.
DETAILED DESCRIPTION OF THE INVENTION:
[0089] The FIGS. 1-3 show an embodiment of the vessel which is used
for removal and/or installation of at least one part of a sea
platform 2 comprising a support structure 4 and a top side 5. The
vessel 1 comprises a hull 6 and two support arms 11, 12. The
support arms 11, 12 are located at a distance from each other and
attached to the hull 6. The support arms 11, 12 in use extend
beyond the hull 6 in a substantially horizontal direction. The
support arm 11, 12 are constructed and arranged to in use fully
support said at least one part 4, 5 of the sea platform 2. Arrow 26
indicates a horizontal direction and arrow 27 indicates a vertical
direction.
[0090] The support arms 11, 12 extend over a distance L2 of around
50 meters beyond the hull 6. In other examples, the support arms
11, 12 can extend between 10 and 100 m beyond the hull 6.
[0091] The support arms 11, 12 extend along the hull 6 over a
distance L3 of around 40% of the length of the hull 6. In an
alternative embodiment, the support arms 11, 12 can extend between
10 and 100% of the length of the hull 6.
[0092] The total length of the support arms 11, 12 is L1. The part
of the support arms 11, 12 extending beyond the hull 6 forms the
outboard extending part 33. The length of the outboard extending
part 33 of the support arms 11, 12 is L2. The part of the support
arms 11, 12 extending along the hull 6 forms the inboard extending
part 34. The length of the inboard extending part 34 of support
arms 11, 12 is length L3.
[0093] The support arms 11, 12 comprise an outer arm surface 13,
inner arm surface 14, upper arm surface 15 and lower arm surface
16. The distance D1 between the outer arm surfaces 13 of the
support arms 11, 12 is around 80 meters. In an alternative
embodiment, the distance D1 can be between 10 and 100 m. The
distance D1 may be smaller or equal to 77.5 meter. The distance D2
between the inner surfaces 14 of the support arms 11, 12 is around
75 meters. In an alternative embodiment, the distance D1 can be
between 10 and 100 m.
[0094] The support arms 11, 12 extend substantially parallel to
each other. The support arms 11, 12 are located above the water
surface when carrying said at least one part 4, 5 of the sea
platform 2.
[0095] The vessel 1 comprises a roll axis 8, a yaw axis 9 and a
pitch axis 10. The support arms 11, 12 extend substantially
parallel to the roll axis 9.
[0096] The support arms 11, 12 comprise a first arm end 17 located
outboard and a second arm end 18 located inboard. The vessel 1
comprises a deck 20. An inclined surface 28 is located at the
second arm end 18 of the support arms 11, 12. The inclined surface
28 extends from the upper arm surface 15 to the deck 20.
[0097] The hull 6 comprises a first hull side 21, a second hull
side 22, a third hull side 23 and a fourth hull side 24. The
support arms 11, 12 extend from the first hull side 21.
[0098] Support units 52 are attached to the support arms 11, 12.
The support units 52 are coupled to rails 51 provided on the
support arms 11, 12. Additional support units 52 can be attached to
the hull 6. The support units 52 comprise a support surface 19 on
which said at least one part 4, 5 of the sea platform 2 is placed.
This means that the support units 52 form the support surface 19 on
which said at least one part 4, 5 of the sea platform 2 is placed
when carried by the support arms 11, 12. The support units 52 are
movable along the rails 51. This allows that the support units 52
are moved in positions that suit the part to be supported. The
support units 52 are actively movable. This way a driving system 31
constructed and arranged to in use move said at least one part 4, 5
along the support arms 11, 12 is provided. The support units 52 are
moveable in the direction of the roll axis 8. In alternative
embodiments, the support units 52 are attached to the support arms
11, 12 in a fixed position.
[0099] The support surface 19 is located at a distance H1 from the
bottom 25 of the hull 6. In the embodiment shown, H1 is around 30
m. In alternative embodiments, H1 can be between 10 and 60 m. The
support surface 19 is located at a distance H2 from the deck 20. In
the embodiment shown, H2 is around 15 m. In alternative
embodiments, H2 can be between 5 and 30 m.
[0100] The vessel 1 comprises a ballast system 54 constructed and
arranged to lower and raise the vessel 1 relative to the water
surface 7. For lowering the vessel 1, sea water is taken in by the
ballast system 54 and stored in ballast tanks 60. For raising the
vessel 1, the sea water is released from the ballast system 54.
Several outflow openings 55 are provided to rapidly discharge the
water held in the ballast tanks 60. The ballast tanks 60 are
located above the water surface 7. This allows the use of gravity
for rapidly discharging the sea water from the ballast system 54.
The outflow openings 55 are also located above the water surface 7
in order to facilitate the rapid removal of sea water from the
ballast system 54. The support surface 19 is in use located between
the water surface 7 and 50 m above the water surface 7. In
alternative embodiments, the ballast tanks 60 are located below the
water surface 7. The outflow openings 55 may also be located below
the water surface 7.
[0101] The hull 6 comprises a first hull side 21 and an opposite
second hull side 22. The support arms 11, 12 extend beyond the hull
6 from the first hull side 21 and the width W2 of the hull 6 at the
second hull side 22 is smaller than the width W1 of the hull 6 at
the first hull side 21. In the direction of the roll axis 8 the
hull 6 comprises said smaller width W2 over a distance of around
40% of the length of the hull 6. In an alternative embodiment, the
said width W2 extends over a distance of between 20 and 60% of the
length of the hull 6. The width W2 of the second hull side 22 can
be between 20 and 70 m. The width W1 of the first hull side 21 can
be between 40 and 100 m.
[0102] The vessel 1 comprises a propulsion system 53. More
specifically, the embodiment shown comprises a dynamic positioning
system which is used for propulsion. In alternative embodiments,
the vessel 1 can comprise any other type of propulsion system, but
can also rely on other vessels such as tugs in order to move.
[0103] The FIGS. 4-11 show a further embodiment of the vessel. A
sea platform 2 comprising a support structure 4 and a top side 5 is
shown. The at least one part which will be removed and/or installed
may relate to the top side and/or the support structure. Said top
side and said support structure may be partly or fully removed
and/or installed.
[0104] The sea platform 2 is supported on the seabed by the support
structure 4. It will be clear that the invention is not only
directed to this type of sea platforms 2. The invention also
applies to different types of sea platforms 2, such as sea
platforms 2 with a floating support structure 4.
[0105] The vessel 1 comprises support units 52 which are attached
to the support arms 11, 12. The support units 52 are attached to
the inner arm surface 14 of the support arms 11, 12. The support
units 52 are shown in detail in FIG. 6. The support units 52 form
the support surface 19 on which said at least one part of the sea
platform 2 is placed. In the FIG. 4-11 the top side 5 is the part
that will be supported by the support arms 11, 12. The support
units 52 comprise a first coupling member 29. The first coupling
members 29 are constructed and arranged to couple with cooperating
second coupling members 30 attached on the sea platform 2. The
first coupling members 29 and the second coupling members 30 are
mating coupling members. In alternative embodiments, the first
coupling members 29 and the second coupling members 30 can of a
different type. The support units 52 comprise dampers 56 forming
the support surface 19. The dampers 56 comprise an elastic
material, such as rubber. In other examples, a different type of
damper 56 can be used, such as fluid dampers and the like.
[0106] The FIGS. 4-11 show an embodiment of the method for removing
at least a part of a sea platform comprising a support structure
and a top side. In FIG. 4, the vessel 1 is located near the sea
platform 2. Second coupling members 30 are attached to the sea
platform 2. The second coupling members 30 are located below the
top side 5. The support structure 4 is cut below the second
coupling members 30 to allow a removal of the top side 5 from the
support structure 4. Part of the support structure 4 is removed
together with the top side 5.
[0107] In FIG. 5, the vessel 1 is lowered to a position wherein the
first coupling members 29 of the vessel 1 are located below the
second coupling members 30.
[0108] In FIG. 7, the support arms 11, 12 are positioned under the
top side 5 such that the support structure 4 is located between the
support arms 11, 12. The first coupling members 29 are located
directly under the second coupling members 30.
[0109] In FIG. 8, the support arms 11, 12 are raised relative to
the water surface 7 to fully support the top side 5 with the
support arms 11, 12. The first coupling members 29 and the second
coupling members 30 are coupled to each other. The top side 5 is
positioned on the support surface 19 formed by the support units
52. In an alternative embodiment, the above indicated cut of the
support structure 4 is made when the top side is fully supported by
the support arms 11, 12.
[0110] In FIG. 9, the raising of the support arms 11, 12 is
continued to move the top side 5 at a distance from the support
structure 4.
[0111] In FIG. 10, the vessel 1 is moved away from the support
structure 4 in a substantially horizontal direction while fully
supporting the top side 5 with the support arms 11, 12.
[0112] In FIG. 11, the top side 5 is transported by the vessel 1 to
a quay 49. The vessel 1 is positioned such that the support arms
support arms 11, 12 supporting the top side are positioned above
the quay 49. The top side 5 is subsequently transferred onto the
quay 49 by lowering the vessel 1 relative to the water surface 7
with the ballast system 54.
[0113] With reference to the FIGS. 4-11, the invention furthermore
relates to a method for installing at least a part of a sea
platform comprising a support structure and top side. Said method
comprises; [0114] providing a vessel 1 according the invention,
such as shown in FIG. 4-11, wherein the top side 5 of the sea
platform 2 is fully supported by the support arms 11, 12, [0115]
positioning the top side 5 above the support structure 4 such that
the support structure 4 is located between the support arms 11, 12,
[0116] lowering the support arms 11, 12 relative to the water
surface 7 to place the top side 5 on the support structure 4,
[0117] continuing the lowering of the support arms 11, 12 to fully
transfer the weight of the top side 5 to the support structure 4
and to move the support arms 11, 12 at a distance from the top side
5, and [0118] moving the vessel 1 away from the support structure 4
in a substantially horizontal direction.
[0119] Said method may comprise fully supporting the top side 5
with the support arms 11, 12 while the top side 5 is positioned on
the support surface 19. Said method may comprise fully supporting
the top side 5 with the support arms 11, 12 via the support units
52.
[0120] Said method may comprise attaching cooperating second
coupling members 30 to the top side 5 and lowering the support arms
11, 12 relative to the water surface 7 to decouple the first
coupling members 29 from the second coupling members 30 when the
top side 5 is carried by the support structure 4.
[0121] Said method may comprise connecting the top side 5 to the
rest of the sea platform 2, such as the support structure 4, while
the support arm fully support the top side 5.
[0122] Said method may comprise positioning the vessel 1 such that
the support arms 11, 12 supporting the top side 5 are positioned
above a quay 49, and transferring the top side 5 from the quay 49
onto the support arms 11, 12. The top side 5 may be transferred
onto the support arms 11, 12 by moving the top side 5 along the
support arms 11, 12. The top side 5 may be transferred onto the
support arms 11, 12 by hoisting the top side 5 from the support
arms 11, 12 and placing the top side on the quay 49. The top side 5
may be transferred onto the support arms 11, 12 by raising the
vessel 1 relative to the water surface 7 with the ballast system
54.
[0123] The FIGS. 12-14 show a further embodiment of the vessel. A
hoisting system 32 is attached to the support arms 11, 12. The
hoisting system 32 is attached to the outboard extending part 33 of
the support arms 11, 12. The hoisting system 32 comprises a first
hoisting member 35, a second hoisting member 36, a flexible first
hoisting line 37 connecting the first hoisting member 35 with the
first support arm 11, a flexible second hoisting line 38 connecting
the second hoisting member 36 with the second support arm 12. The
flexible hoisting lines 37, 38 may be of any suitable type known to
the skilled person, such as cables, chains, wires etc. A first line
driver 39 is connected to the vessel 1 and constructed and arranged
to take in and pay out the first hoisting line 37 in order to move
the first hoisting member 35 relative the first support arm 11. A
second line driver 40 is connected to the vessel 1 and constructed
and arranged to take in and pay out the second hoisting line 38 in
order to move the second hoisting member 36 relative the second
support arm 12. The first line driver 39 is attached to the first
support arm 11 and the second line driver 40 is attached to the
second support arm 12. The first line driver 39 and second line
driver 40 comprise a reeling device, such as a traction winch. In
alternative embodiments, the line driver 39, 40 may be of a
different type, such as a strand jack lifting system or a chain
jack lifting system.
[0124] The first hoisting member 35 and second hoisting member 36
are provided with first connectors 57 constructed and arranged to
in use connect said hoisting members 35, 36 to cooperating second
connectors 58 provided on said at least one part of the sea
platform 2, more specifically on the support structure 4 of the sea
platform 2.
[0125] The first hoisting member 35 and the second hoisting member
36 comprise an in use substantially horizontal extending hoisting
beam 42.
[0126] The vessel 1 comprises a further hoisting system 46 which is
supported by the support arms 11, 12. The further hoisting system
46 comprises a hoist driving device 47 constructed and arranged to
drive the further hoisting device 46 along the support arms 11, 12.
Rails 51 are provided on the support arms 11, 12 and the further
hoisting system 46 is coupled and movable along said rails 51 via
the hoist driving device 47. The further hoisting system 46
comprises a cross beam 48 extending over the distance between the
support arms 11, 12.
[0127] The FIGS. 15 and 16 show an alternative embodiment of the
vessel of the FIG. 12-14. The first hoisting line 37 is attached to
the first support arm 11 via a first lifting device 44 constructed
and arranged to in use lift the first hoisting line 37 above the
first support arm 11 in a substantially vertical direction. The
second hoisting line 38 is attached to the second support arm 12
via a second lifting device 45 constructed and arranged to in use
lift the second hoisting line 38 above the second support arm 12 in
a substantially vertical direction. Said movement is indicated by
arrow 59.
[0128] The first lifting device 44 and the second lifting device 45
are constructed and arranged to lift the first hoisting line 37 and
the second hoisting line 38 up to a distance of around 30 m above
the first support arm 11 and the second support arm 12,
respectively. In alternative embodiments, the first hoisting line
37 and the second hoisting line 38 are lifted up to a distance
between 10 and 50 m above the first support arm 11 and the second
support arm 12, respectively.
[0129] The FIGS. 12-14 show an embodiment of the method for
removing at least a part of a sea platform comprising a support
structure and a top side. In said method the hoisting system 32 is
connected to the support structure 4 and the support structure 4 is
raised with the hoisting system 32 in a substantially vertical
direction while fully supporting the support structure 4 with the
support arms 11, 12.
[0130] In FIG. 12, the vessel 1 and the support structure 4 of the
platform 2 are shown. The top side 5 has already been removed. In
FIG. 13, the first hoist member 35 and second hoist member 36 are
lowered towards the seabed on which the support structure 4 is
positioned. The first hoist member 35 and second hoist member 36
are connected to the support structure 4 at a position below the
water surface 7. The first hoist member 35 and second hoist member
36 may for example be connected to the support structure 4 at a
position between 10 and several hundreds of meters below the water
surface 7. The first connectors 57 and the second connectors 58 are
interconnected.
[0131] In FIG. 14, the first hoist member 35 and second hoist
member 36 holding the support structure 4 are raised towards the
water surface 7. The first hoist member 35 and second hoist member
36 may be raised to a position above the water surface 7.
[0132] In the method shown in the FIGS. 15 and 16, the first hoist
member 35 and second hoist member 36 are raised above the support
arms 11, 12.
[0133] After the support structure has been raised and is supported
by the support arms 11, 12, the support structure may be dismantled
or the vessel 1 may transport the support structure to a location
where it will be dismantled or re-used.
[0134] With reference to the FIGS. 12-16, the invention furthermore
relates to a method for installing at least a part of a sea
platform comprising a support structure and top side. Said method
comprises; [0135] providing a vessel 1 according the invention,
such as shown in the FIG. 12-15, wherein the support structure 4 is
connected to the hoisting system 32 and fully supported by the
support arms 11, 12, [0136] lowering the support structure 4 with
the hoisting system 32 in a substantially vertical direction such
that the support structure 4 is placed on the seabed or a
foundation provided on the seabed and [0137] disconnecting the
hoisting system 32 from the support structure 4.
[0138] Said method may comprise; [0139] providing the vessel 1,
wherein the first hoist member 35 and second hoist member 36 are
connected to the support structure 4, [0140] lowering the support
structure 4 by lowering the first hoist member 35 and second hoist
member 36 towards the seabed, [0141] disconnecting the first hoist
member 35 and second hoist member 36 from the support structure 4
at a positioned below the water surface 7, and [0142] raising the
first hoist member 35 and the second hoist member 36 towards the
water surface 7.
[0143] Said method may comprise raising the first hoist member 35
and the second hoist member 36 to a position above the water
surface 7.
[0144] Said method may comprise lowering the first hoist member 35
and second hoist member 36 up to a depth of between 10 and several
hundreds of meters below the water surface 7.
[0145] Said method may comprise providing a vessel according the
invention, such as shown in FIGS. 15 and 16, wherein the first
hoist member 35 and second hoist member 36 are located above the
support arms 11, 12 while being connected to support structure
4.
[0146] FIG. 17 shows a further embodiment of the vessel. Two heavy
lifting cranes 61 are provided on the vessel 1.
[0147] FIG. 18 shows a further embodiment of the method. Two parts
of the sea platform are supported by the support arms 11, 12. The
top side 5 is supported by the inboard extending part 34 of the
support arms 11, 12. The support structure 4 is supported by the
outboard extending part 33 of the support arms 11, 12.
[0148] The FIGS. 19-22 show a further embodiment of the vessel. A
top side support 62 is provided on the deck 20 of the vessel 1. The
top side support 62 is constructed and arranged to support the top
side 5 of the sea platform 2. The top side support 62 is located at
the second hull side 22. The top side structure 62 may be located
at a distance from the second hull side 22. The top side support 62
is located on the deck 20 of the vessel 1. The top side support 62
is located at the part of the hull comprising said smaller width
W2.
[0149] In FIG. 19, a top side 5 is positioned on the top side
support 62. The top side 5 is fully supported by the top side
support 62 located on the deck 20. A support structure 4 is fully
supported by the support arms 11, 12. The support structure 4 is
connected to the hoisting system 32 attached to the support arms
11, 12. The support structure 4 comprises several support legs
63.
[0150] In FIG. 20, the support structure 4 is being lowered by the
hoisting system 32. After the support structure 4 is positioned on
the seabed, the hoisting members 35, 36 are subsequently
disconnected from the support structure 4 and raised to the support
arms 11, 12.
[0151] In FIG. 21, the support structure 4 is positioned on the
seabed and the vessel 1 is positioned such that the top side 5 is
located above the support structure 4. The hull 6 of the vessel 1
is located between the support legs 63. The top side support 62
carrying the top side 5 is lowered relative to the water surface 7
to place the top side 5 on the support structure 4. Said lowering
is continued to fully transfer the weight of the top side 5 to the
support structure 4 and to move the top side support 62 at a
distance from the top side 5.
[0152] In FIG. 22, the top side 5 is fully supported by the support
structure 4 and the vessel 1 is moving away from the support
structure 4 and the top side 5 in a substantially horizontal
direction.
[0153] The top side support 62 is lowered by lowering the hull 6 of
the vessel 1 relative to the water surface 7.
[0154] With reference to the FIG. 19-22, the invention furthermore
relates to a method wherein a vessel 1 according the invention,
such as shown in FIG. 19-22, is used to remove a top side 5 from a
sea platform 2 comprising a support structure 4 with several
support legs 63 and the top side 5. Said method comprises [0155]
positioning the top side support 62 under the top side 5 such that
the hull 6 of the vessel 1 is located between the support legs 63
of the support structure 4, [0156] raising the top side support 62
relative to the water surface 7 to fully support the top side 5
with the top side support 62, [0157] continuing the raising of the
top side support 62 to move the top side 5 at a distance from the
support structure 4, and [0158] moving the vessel 1 away from the
support structure 4 in a substantially horizontal direction while
fully supporting the top side 5 with the top side support 62.
[0159] The top side support 62 is raised by raising the hull 6 of
the vessel 1 relative to the water surface 7.
[0160] The support structure 4 can subsequently be removed
according to the invention, such as shown in the FIG. 12-16.
[0161] This allows the vessel 1 to remove or install a sea platform
comprising a support structure and top side in one trip.
[0162] It is also possible to remove or install a second top side
5, as for example shown in the FIG. 1-11.
[0163] The FIGS. 23-26 show a further embodiment of the vessel. The
FIGS. 23-25 show a top view of the vessel 1 and FIG. 26 shows a
cross sectional view along the roll axis 8.
[0164] The support arms 11, 12 are movable relative to the hull 6.
The support arms are movable relative to each other. The support
arms 11, 12 are movable in a direction transverse to the roll axis
8. More specifically, the support arms 11, 12 are movable in a
direction perpendicular to the roll axis 8.
[0165] The support arms 11, 12 are movable along a support
trajectory 64. The support trajectory 64 extends transverse to the
roll axis 8. More specifically, the support trajectory 64 extends
perpendicular to the roll axis 8.
[0166] The vessel 1 comprises two support rails 65 and the support
arms 11, 12 are moveable along the support rails 65. The support
rails 65 extend transverse to the roll axis 8. More specifically,
the support rails 65 extend perpendicular to the roll axis 8. The
support rails 65 define the support trajectory 64.
[0167] The vessel 1 comprises an arm driving system 66 constructed
and arranged to move the support arms 11, 12 relative to the hull
6. The arm driving system 66 moves the support arms 11, 12 along
the support trajectory 64. The arm driving system 66 moves the
support arms 11, 12 along the support rails 65.
[0168] The vessel 1 comprises an arm fixating system 67 constructed
and arranged to fixate the support arms 11, 12 relative to the hull
6. The support arms 11, 12 are movable from a distance of 10 m
between the support arms 11, 12 to a distance of 100 m between the
support arms 11, 12, and vice versa.
[0169] The vessel 1 comprises two docking units 70. The vessel 1
may comprise a different number of docking units 70. The docking
units 70 are attached to the hull 6. More specifically, the docking
units 70 are attached to the first hull side 21. In other examples
of the vessel, at least one docking unit 70 is attached to the
support arms 11, 12, for example to the inner arm surfaces 14 of
the support arms 11, 12.
[0170] In FIG. 23, the vessel 1 is positioned near a support
structure 4. The support arms 11, 12 are positioned such that the
distance between the support arms 11, 12 is larger than the width
of the support structure 4.
[0171] In FIG. 24, the vessel 1 is docked at the support structure
4 via the docking units 70. The docking units 70 are placed in
contact with the support structure 4. The vessel 1 is positioned
such that the support structure 4 is located between the support
arms 11, 12.
[0172] The support units 52 can be moved along the support arms 11,
12 by the driving system 31. The support units 52 comprise first
coupling members 29 and are positioned near second coupling members
(not shown) provided on the support structure 4. The support arms
11, 12 are movable in the directions shown by the arrows 69.
[0173] In FIG. 25, the support arms 11, 12 are moved toward each
other by the arm driving system 66. The support arms 11, 12 are
moved toward the support structure 4. The support arms 11, 12 are
subsequently fixed in a support position 68 by the arm fixating
system 67. By raising the support arms 11, 12 relative to the water
surface, the first coupling members 29 of the support units 52
couple with the second coupling members of the support structure 4.
By further raising the support arms 11, 12 relative to the water
surface, the support structure 4 will be lifted which allows the
transportation of the support structure 4 by the vessel 1.
[0174] In a similar way, the moving support arm 11, 12 can be used
to remove and/or install a top side 5. A removal of a top side 5,
may for example be performed by moving the coupling members 29
and/or the support arms 11, 12 relative to the hull 6 such that the
first coupling members 29 are positioned below second coupling
members 30 provided at the underside of the top side 5. The support
arms 11, 12 are subsequently raised relative to the water surface
to couple the first coupling members 29 with the second coupling
members 30. The raising of support arms 11, 12 relative to the
water surface is continued to lift the top side 5 from the support
structure 4. The vessel 1 is moved away from the support structure
4 while fully supporting the top side 5.
[0175] An installation of the top side 5, may for example be
performed by positioning the top side 5 above a support structure 4
while the top side 5 is fully supported by the support arms 11, 12.
The support arms 11, 12 are subsequently lowered relative to the
water surface to place the top side 5 on the support structure 4.
The lowering of the support arms 11, 12 is continued to fully
transfer the weight of the top side 5 to the support structure 4.
The lowering of the support arms 11, 12 relative to the water
surface may be continued to create a distance between the support
arms 11, 12 and the top side 5. The support arms 11, 12 are moved
relative to the hull 6 before the vessel 1 is moved away from the
support structure 4.
[0176] With reference to the FIG. 23-26, the invention furthermore
relates to a method for removing and/or installing at least one
part of a sea platform 2 comprising a support structure 4 and a top
side 5, wherein the method comprises the feature of moving the
support arms 11, 12 relative to the hull 6. The method may comprise
the feature of moving the support arms 11, 12 relative to each
other. The method may comprise the feature of moving the support
arms 11, 12 towards each other. The method may comprise the feature
of moving the support arms 11, 12 away from each other. The method
may comprise the feature of moving the support arms 11, 12 in a
direction transverse to the roll axis 8. The method may comprise
the feature of moving the support arms 11, 12 in a direction
perpendicular to the roll axis 8. The method may comprise the
feature of moving the support arms 11, 12 along the support
trajectory 64. The method may comprise the feature of moving the
support arms 11, 12 along the support rail 65. The method may
comprise the feature of moving the support arms 11, 12 to match the
dimensions of the top side 5 which in use will be supported by the
support arms 11, 12. The method may comprise the feature of moving
the support arms 11, 12 to match the dimensions of the support
structure 4 which in use will be supported by the support arms 11,
12. The method may comprise the feature of fixating the support
arms 11, 12 relative to the hull 6 in a support position 68. The
method may comprise the feature of docking the vessel 1 at the
support structure 4 via the at least one docking unit 70. The
method may comprise the feature of moving the support arms 11, 12
relative to the hull after the docking of the vessel 1. The method
may comprise the feature of fixating the support arms 11, 12
relative to the hull 6 after the docking of the vessel 1.
[0177] FIG. 27 shows a further embodiment of the vessel. The
hoisting system 32 is constructed and arranged to move said at
least one part along the support arms 11, 12. The hoisting system
32 is constructed and arranged to move said at least one part along
the deck 20 of the vessel 11. The driving system 31 is constructed
and arranged to move the hoisting system 32 along the support arms
11, 12. The driving system 31 is constructed and arranged to move
the hoist members 35, 36 along the support arms 11, 12.
[0178] The support arms 11, 12 comprise rails 51 and the driving
system 31 moves the hoisting system 31 along said rails 51. The
rails 51 extend substantially parallel to the roll axis 8 of the
vessel 1.
[0179] With reference to the FIG. 27, the invention furthermore
relates to a method for removing and/or installing at least one
part of a sea platform comprising a support structure and a top
side, wherein the method comprises the feature of moving said at
least one part supported by the support arms 11, 12 along the deck
20 of the vessel 1. The method may comprise the feature of moving
said at least one part supported by the support arms 11, 12 in the
direction of the roll axis 8 of the vessel 1. The method may
comprise the feature of moving said at least one part carried by
the hoisting system 32 along said support arms 11, 12 with the
driving system 31. The method may comprise the feature of moving
said at least one part carried by the hoisting system 21 along the
rails 51. The method may comprise the feature of moving the hoist
members 35, 36 along the support arms 11, 12 with the driving
system 31 while carrying the said at least one part. The method may
comprise the feature of placing said at least one part carried by
the hoisting system 32 on the deck 20 of the vessel 1.
[0180] The method may comprise the feature of transferring said at
least one part from the vessel 1 onto a quay 49 by positioning the
second hull side 22 adjacent to the quay 49 and moving said at
least one part from the vessel 1 to the quay 49 while moving over
the second hull side 22.
[0181] The method may comprise the feature of transferring said at
least one part from a quay 49 onto the vessel 1 by positioning the
second hull 22 side adjacent to the quay 49 and moving said at
least one part from the quay 49 to the vessel 1 while moving over
the second hull side 22.
[0182] Said at least one part may be the support structure 4. Said
at least one part may be the top side 5.
[0183] The method may comprise the feature of removing the support
structure 4 while the vessel 1 carries the top side 5. The method
may comprise the feature of removing the support structure 4 while
the vessel 1 carries a further support structure 4. The method may
comprise the feature of removing the top side 5 while the vessel
carries a further top side 5.
[0184] The method may comprise the feature of installing the
support structure 4 while the vessel carries the top side 5. The
method may comprise the feature of installing the support structure
4 while the vessel carries a further support structure 4. The
method may comprise the feature of installing the top side 5 while
the vessel carries a further top side 5.
[0185] FIG. 28 shows a further embodiment of the vessel. The
hoisting system 32 comprises a first hoisting member 35, a second
hoisting member 36, a third hoisting member 73, and a fourth
hoisting member 74. A flexible first hoisting line 37 connects the
first hoisting member 35 with the first support arm 11. A flexible
second hoisting line 38 connects the second hoisting member 36 with
the second support arm 12. A flexible third hoisting line 75
connects the third hoisting member 73 with the first support arm
11. A flexible fourth hoisting line 76 connects the fourth hoisting
member 74 with the second support arm 12.
[0186] The hoisting system 32 comprises a first line driver 39
connected to the first hoisting line 37, a second line driver 40
connected to the second hoisting line 38, a third line driver 77
connected to the third hoisting line 75 and a fourth line driver 78
connected to the fourth hoisting line 76. The first line driver 39
is attached to the first support arm 11, the second line driver 40
is attached to the second support arm 12, the third line driver 77
is attached to the first support arm 11 and the fourth line driver
78 is attached to the second support arm 12.
[0187] The support structure 4 is of the type on which a top side
comprising a wind turbine is placed. Two further support structures
4 are located on the deck 20 of the vessel 1.
[0188] The following clauses present a further description of the
vessel, method and use according to the invention.
[0189] Clause 1. Vessel for removal and/or installation of at least
one part of a sea platform comprising a support structure and a top
side, said vessel comprising a hull and two support arms located at
a distance from each other and attached to the hull, wherein the
support arms in use extend beyond the hull in a substantially
horizontal direction.
[0190] Clause 2. Vessel according to clause 1, wherein the support
arms are constructed and arranged to in use fully support said at
least one part of the sea platform.
[0191] Clause 3. Vessel according to clause 1 or 2, wherein the
support arms extend over a distance between 10 and 100 m beyond the
hull.
[0192] Clause 4. Vessel according to any of the preceding clauses,
wherein the support arms extend along the hull over a distance
between 10 and 100% of the length of the hull.
[0193] Clause 5. Vessel according to any of the preceding clauses,
wherein the distance between the support arms is between 10 and 100
m.
[0194] Clause 6. Vessel according to any of the preceding clauses,
wherein the support arms are located above the water surface when
carrying said at least one part of the sea platform.
[0195] Clause 7. Vessel according to any of the preceding clauses,
wherein the support arms extend substantially parallel to each
other.
[0196] Clause 8. Vessel according to any of the preceding clauses,
wherein the vessel comprises a roll axis.
[0197] Clause 9. Vessel according to clause 8, wherein the support
arms extend substantially parallel to the roll axis.
[0198] Clause 10. Vessel according to any of the preceding clauses,
wherein the support arms are provided with a driving system
constructed and arranged to in use move said at least one part
carried by the support arms along said support arms.
[0199] Clause 11. Vessel according to any of the preceding clauses,
wherein the support arms form a support surface on which the said
at least one part in use is placed.
[0200] Clause 12. Vessel according to clause 11, wherein the vessel
comprises a deck and the support surface in use is located above
the deck.
[0201] Clause 13. Vessel according to any of the preceding clauses,
wherein the support arms comprise an upper arm surface, a second
arm end connected to the hull and an inclined surface extending
from the upper arm surface to the deck.
[0202] Clause 14. Vessel according to any of the clauses 11-13,
wherein the support surface in use is located between the water
surface and 50 m above the water surface.
[0203] Clause 15. Vessel according to any of the clauses 11-14,
wherein the support surface is located at a distance of between 10
and 60 m from the bottom of the hull.
[0204] Clause 16. Vessel according to any of the clauses 11-15,
wherein the support surface is located at a distance of between 5
and 30 m from the deck.
[0205] Clause 17. Vessel according to any of the preceding clauses,
wherein the vessel comprises a ballast system constructed and
arranged to lower and raise the vessel relative to the water
surface.
[0206] Clause 18. Vessel according to clause 17, wherein the
ballast system comprises at least one ballast tank in which water
received by the ballast system is held.
[0207] Clause 19. Vessel according to clause 18, wherein the
ballast tanks are located in the support arms.
[0208] Clause 20. Vessel according to clause 19, wherein the
ballast tanks are located in the inboard extending part of the
support arms.
[0209] Clause 21. Vessel according to any of the clauses 18-20,
wherein the ballast tanks in use are positioned above the water
surface.
[0210] Clause 22. Vessel according to any of the clauses 18-21,
wherein the ballast system comprise outflow openings which are in
fluid communication with the ballast tanks to discharge water held
by said ballast tanks and the outflow openings are in use located
above the water surface.
[0211] Clause 23. Vessel according to any of the preceding clauses,
wherein said at least one part of the sea platform comprises the
top side.
[0212] Clause 24. Vessel according to any of the preceding clauses,
wherein support units are attached to the support arms.
[0213] Clause 25. Vessel according to any of the preceding clauses,
wherein support units are attached to the hull.
[0214] Clause 26. Vessel according to clause 24 or 25, wherein the
support units form the support surface.
[0215] Clause 27. Vessel according to any of the clauses 24-26,
wherein the support units comprise a first coupling member.
[0216] Clause 28. Vessel according to clause 27, wherein the first
coupling members are constructed and arranged to couple with
cooperating second coupling members attached to said at least one
part.
[0217] Clause 29. Vessel according to any of the clauses 24-28,
wherein the support units comprise dampers forming the support
surface.
[0218] Clause 30. Vessel according to clause 29, wherein dampers
comprise an elastic material, such as rubber.
[0219] Clause 31. Vessel according to any of the clauses 10-30,
wherein the driving system is constructed and arranged to move at
least part of the support units along the support arms.
[0220] Clause 32. Vessel according to any of the preceding clauses,
wherein the hull comprises a first hull side and an opposite second
hull side, the support arms extend beyond the hull from the first
hull side.
[0221] Clause 33. Vessel according to clause 32, wherein the width
of the hull at the second hull side is smaller than the width of
the hull at the first hull side.
[0222] Clause 34. Vessel according to clause 33, wherein in the
direction of the roll axis the hull comprises said smaller width
over a distance between 20 and 60% of the length of the hull.
[0223] Clause 35. Vessel according to any of the clauses 32-34,
wherein the width of the second hull side is between 20 and 70
m.
[0224] Clause 36. Vessel according to any of the clauses 32-35,
wherein the width of the first hull side is between 40 and 100
m.
[0225] Clause 37. Vessel according to any of the preceding clauses,
wherein a top side support is provided on the deck of the
vessel.
[0226] Clause 38. Vessel according to clause 37, wherein the top
side support is located at the second hull side.
[0227] Clause 39. Vessel according to clause 38, wherein the top
side support is located at the part of the hull comprising said
smaller width.
[0228] Clause 40. Vessel according to any of the preceding clauses,
wherein a hoisting system is attached to the support arms.
[0229] Clause 41. Vessel according to clause 40, wherein the
hoisting system is attached to the outboard extending part of the
support arms.
[0230] Clause 42. Vessel according to any of the preceding clauses,
wherein said at least one part of the sea platform comprises the
support structure.
[0231] Clause 43. Vessel according to any of the clauses 40-42,
wherein the support arms comprise a first support arm and a second
support arm and the hoisting system comprises; [0232] a first
hoisting member, [0233] a second hoisting member, [0234] a flexible
first hoisting line connecting the first hoisting member with the
first support arm, [0235] a flexible second hoisting line
connecting the second hoisting member with the second support arm,
and [0236] at least one line driver connected to the vessel and
constructed and arranged to take in and pay out the first hoisting
line and second hoisting line in order to move the first hoisting
member and the second hoisting member relative the first support
arm and the second support arm, respectively.
[0237] Clause 44. Vessel according to clause 43, wherein the
hoisting system comprises; [0238] a third hoisting member, [0239] a
fourth hoisting member, [0240] a flexible third hoisting line
connecting the third hoisting member with the first support arm,
[0241] a flexible fourth hoisting line connecting the fourth
hoisting member with the second support arm, and the at least one
line driver is constructed and arranged to take in and pay out the
third hoisting line and fourth hoisting line in order to move the
third hoisting member and the fourth hoisting member relative the
first support arm and the second support arm, respectively.
[0242] Clause 45. Vessel according to clause 43 or 44, wherein the
hoisting system comprises a separate line driver connected to each
hoisting line.
[0243] Clause 46. Vessel according to clause 43-45, wherein the
hoisting system comprises a first line driver connected to the
first hoisting line and a second line driver connected to the
second hoisting line.
[0244] Clause 47. Vessel according to clause 46, wherein the first
line driver is attached to the first support arm and the second
line driver is attached to the second support arm.
[0245] Clause 48. Vessel according to any of the clauses 43-47,
wherein the first hoisting member and second hoisting member are
provided with connectors constructed and arranged to in use connect
said hoisting members to the support structure.
[0246] Clause 49. Vessel according to any of the clauses 43-48,
wherein the first hoisting member and the second hoisting member
comprise an in use substantially horizontal extending hoisting
beam.
[0247] Clause 50. Vessel according to any of the clauses 43-49,
wherein the first hoisting line is attached to the first support
arm via a first lifting device constructed and arranged to in use
lift the first hoisting line above the first support arm in a
substantially vertical direction and the second hoisting line is
attached to the second support arm via a second lifting device
constructed and arranged to in use lift the second hoisting line
above the second support arm in a substantially vertical
direction.
[0248] Clause 51. Vessel according to clause 50, wherein the first
lifting device and the second lifting device are constructed and
arranged to lift the first hoisting line and the second hoisting
line up to a distance of between 10 and 50 m above the first
support arm and the second support arm, respectively.
[0249] Clause 52. Vessel according to any of the clauses 44-51,
wherein the hoisting system comprises a third line driver connected
to the third hoisting line and a fourth line driver connected to
the fourth hoisting line.
[0250] Clause 53. Vessel according to clause 52, wherein the third
line driver is attached to the first support arm and the fourth
line driver is attached to the second support arm.
[0251] Clause 54. Vessel according to any of the clauses 44-53,
wherein the third hoisting member and fourth hoisting member are
provided with connectors constructed and arranged to in use connect
said hoisting members to the support structure.
[0252] Clause 55. Vessel according to any of the clauses 44-54,
wherein the third hoisting line is attached to the first support
arm via a third lifting device constructed and arranged to in use
lift the third hoisting line above the first support arm in a
substantially vertical direction and the fourth hoisting line is
attached to the second support arm via a fourth lifting device
constructed and arranged to in use lift the fourth hoisting line
above the second support arm in a substantially vertical
direction.
[0253] Clause 56. Vessel according to clause 55, wherein the third
lifting device and the fourth lifting device are constructed and
arranged to lift the third hoisting line and the fourth hoisting
line up to a distance of between 10 and 50 m above the first
support arm and the second support arm, respectively.
[0254] Clause 57. Vessel according to any of the clauses 40-56,
wherein the hoisting system is constructed and arranged to move
said at least one part along the support arms.
[0255] Clause 58. Vessel according to any of the clauses 40-57,
wherein the hoisting system is constructed and arranged to move
said at least one part along the deck of the vessel.
[0256] Clause 59. Vessel according to any of the clauses 40-58,
wherein the driving system is constructed and arranged to move the
hoisting system along the support arms.
[0257] Clause 60. Vessel according to any of the clauses 43-59,
wherein the driving system is constructed and arranged to move the
hoist members along the support arms.
[0258] Clause 61. Vessel according to any of the clauses 40-60,
wherein the support arms comprise rails and the driving system
moves the hoisting system along said rails.
[0259] Clause 62. Vessel according to any of the clauses 40-61,
wherein each support arm comprises a rail and the driving system
moves the hoisting system along said rails.
[0260] Clause 63. Vessel according to clause 61 or 62, wherein the
rails extend substantially parallel to the roll axis of the
vessel.
[0261] Clause 64. Vessel according to any of the preceding clauses,
wherein the vessel comprises a further hoisting system which is
supported by the support arms and the further hoisting system
comprises a hoist driving device to drive the further hoisting
device along the support arms.
[0262] Clause 65. Vessel according to clause 64, wherein the
further hoisting system comprises a cross beam extending over the
distance between the support arms.
[0263] Clause 66. Vessel according to any of the preceding clauses,
wherein the vessel comprises a heavy lifting crane positioned on
the deck.
[0264] Clause 67. Vessel according to any of the preceding clauses,
wherein the support arms are movable relative to the hull.
[0265] Clause 68. Vessel according to any of the preceding clauses,
wherein the support arms are movable relative to each other.
[0266] Clause 69. Vessel according to any of the preceding clauses,
wherein the support arms are movable in a direction transverse to
the roll axis.
[0267] Clause 70. Vessel according to any of the preceding clauses,
wherein the support arms are movable in a direction perpendicular
to the roll axis.
[0268] Clause 71. Vessel according to any of the preceding clauses,
wherein the support arms are movable along a support
trajectory.
[0269] Clause 72. Vessel according to clause 71, wherein the
support trajectory extends transverse to the roll axis.
[0270] Clause 73. Vessel according to clause 71, wherein the
support trajectory extends perpendicular to the roll axis.
[0271] Clause 74. Vessel according to any of the preceding clauses,
wherein the vessel comprises a support rail and the support arms
are moveable along the support rail.
[0272] Clause 75. Vessel according to clause 74, wherein the
support rail extends transverse to the roll axis.
[0273] Clause 76. Vessel according to clause 74, wherein the
support rail extends perpendicular to the roll axis.
[0274] Clause 77. Vessel according to any of the clauses 74-76,
wherein the support rail defines the support trajectory.
[0275] Clause 78. Vessel according to any of the preceding clauses,
wherein the vessel comprises an arm driving system constructed and
arranged to move the support arms relative to the hull.
[0276] Clause 79. Vessel according to clause 78, wherein the arm
driving system moves the support arms along the support
trajectory.
[0277] Clause 80. Vessel according to clause 78 or 79, wherein the
arm driving system moves the support arms along the support
rails.
[0278] Clause 81. Vessel according to any of the preceding clauses,
wherein the vessel comprises an arm fixating system constructed and
arranged to fixate the support arms relative to the hull.
[0279] Clause 82. Vessel according to any of the clauses 67-81,
wherein the support arms are movable from a distance of 10 m
between the support arms to a distance of 100 m between the support
arms, and vice versa.
[0280] Clause 83. Vessel according to any of the preceding clauses,
wherein the vessel comprises at least one docking unit.
[0281] Clause 84. Vessel according to clause 83, wherein at least
one docking unit is attached to the support arms.
[0282] Clause 85. Vessel according to clause 84, wherein at least
one docking unit is attached to the inner arm surfaces of the
support arms.
[0283] Clause 86. Vessel according to any of the clauses 83-85,
wherein at least one docking unit is attached to the hull.
[0284] Clause 87. Vessel according to clause 86, wherein at least
one docking unit is attached to the first hull side.
[0285] Clause 88. Vessel according to any of the preceding clauses,
wherein the top side comprises equipment constructed and arranged
to exploit oil and/or gas from the seabed.
[0286] Clause 89. Vessel according to any of the preceding clauses,
wherein the top side comprises a drilling system constructed and
arranged to drill in the seabed.
[0287] Clause 90. Vessel according to any of the preceding clauses,
wherein the top side comprises a wind turbine.
[0288] Clause 91. Method for removing at least a part of a sea
platform comprising a support structure and a top side, which
method comprises; [0289] providing a vessel according to any of the
preceding clauses, [0290] positioning the support arms under the
top side such that the support structure is located between the
support arms, [0291] raising the support arms relative to the water
surface to fully support the top side with the support arms, [0292]
continuing the raising of the support arms to move the top side at
a distance from the support structure and [0293] moving the vessel
away from the support structure in a substantially horizontal
direction while fully supporting the top side with the support
arms.
[0294] Clause 92. Method according to clause 91, wherein the
provided vessel complies with any of the clauses 11-90 and the
method comprises fully supporting the top side with the support
arms while the top side is positioned on the support surface.
[0295] Clause 93. Method according to clause 91 or 92, wherein the
provided vessel complies with any of the clauses 24-90 and the
method comprises fully supporting the top side with the support
arms via the support units.
[0296] Clause 94. Method according to any of the clauses 91-93,
wherein the provided vessel complies with any of the clauses 67-90
and wherein the method comprises moving the support arms relative
to the hull before the support arms support the top side.
[0297] Clause 95. Method according to any of the clauses 91-94,
wherein the provided vessel complies with any of the clauses 67-90
and wherein the method comprises moving the support arms relative
to the hull after the support arms are positioned under the top
side.
[0298] Clause 96. Method according to any of the clauses 91-95,
wherein the provided vessel complies with any of the clauses 67-90
and wherein the method comprises fixating the support arms relative
to the hull in a support position before the support arms fully
support the top side.
[0299] Clause 97. Method according to any of the clauses 91-96,
wherein the provided vessel complies with any of the clauses 67-90
and wherein the method comprises fixating the support arms relative
to the hull in a support position after the support arms are
positioned under the top side.
[0300] Clause 98. Method according to any of the clauses 91-97,
wherein the provided vessel complies with any of the clauses 27-90
and the method comprises attaching cooperating second coupling
members to the top side.
[0301] Clause 99. Method according to clause 98, wherein the method
comprises raising the support arms relative to the water surface to
couple the first coupling members with the second coupling
members.
[0302] Clause 100. Method according to clause 98 or 99, wherein the
provided vessel complies with any of the clauses 67-90 and the
method comprises fixating the support arms relative to the hull in
a support position before the first coupling members are coupled
with the second coupling members.
[0303] Clause 101. Method according to any of the clauses 98-100,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms relative to the
hull to couple the first coupling members with the second coupling
members.
[0304] Clause 102. Method according to any of the clauses 98, 99,
101, wherein the provided vessel complies with any of the clauses
67-90 and the method comprises fixating the support arms relative
to the hull in a support position after the first coupling members
are coupled with the second coupling members.
[0305] Clause 103. Method according to any of the clauses 91-102,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via the at least one docking unit to positioning the
support arms under the top side such that the support structure is
located between the support arms,
[0306] Clause 104. Method according to any of the clauses 91-103,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via the at least one docking unit before the support arms
support the top side.
[0307] Clause 105. Method according to any of the clauses 91-104,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via the at least one docking unit before the support arms
are raised relative to the water surface.
[0308] Clause 106. Method according to any of the clauses 91-105,
wherein the method comprises disconnecting the top side from the
rest of the sea platform while the support arms fully support the
top side.
[0309] Clause 107. Method according to any of the clauses 91-106,
wherein the method comprises [0310] positioning the vessel such
that the support arms supporting the top side are positioned above
a quay, and [0311] transferring the top side onto the quay.
[0312] Clause 108. Method according to clause 107, wherein the top
side is transferred onto the quay by moving the top side along the
support arms.
[0313] Clause 109. Method according to clause 107 or 108, wherein
the top side is transferred onto the quay by hoisting the top side
from the support arms and placing the top side on the quay.
[0314] Clause 110. Method according to any of the clauses 107-109,
wherein the top side is transferred onto the quay by lowering the
support arms.
[0315] Clause 111. Method according to any of the clauses 107-110,
wherein the provided vessel complies with any of the clauses 67-90
and the top side is transferred onto the quay by moving the support
arm relative to the hull.
[0316] Clause 112. Method for removing at least part of a sea
platform comprising a support structure and a top side, which
method comprises; [0317] providing a vessel according to any of the
clauses 40-90, [0318] connecting the hoisting system to the support
structure, and [0319] raising the support structure with the
hoisting system in a substantially vertical direction while fully
supporting the support structure with the support arms.
[0320] Clause 113. Method according to any of the clauses 91-111,
wherein the provided vessel complies with any of the clauses 40-90
and the method comprises [0321] connecting the hoisting system to
the support structure, and [0322] raising the support structure
with the hoisting system in a substantially vertical direction
while fully supporting the support structure with the support
arms.
[0323] Clause 114. Method according to any of the clauses 112 or
113, wherein the provided vessel complies with any of the clauses
43-90 and the method comprises [0324] lowering the first hoist
member and second hoist member towards the seabed, [0325]
connecting the first hoist member and second hoist member to the
support structure at a position below the water surface, and [0326]
raising the first hoist member and second hoist member towards the
water surface.
[0327] Clause 115. Method according to clause 115, wherein the
method comprises raising the first hoist member and second hoist
member to a position above the water surface.
[0328] Clause 116. Method according to clause 114 or 115, wherein
the provided vessel complies with any of the clauses 50-90 and the
method comprises raising the first hoist member and second hoist
member above the support arms.
[0329] Clause 117. Method according to any of the clauses 112-116,
wherein the provided vessel complies with any of the clauses 44-90
and the method comprises [0330] lowering the third hoist member and
fourth hoist member towards the seabed, [0331] connecting the third
hoist member and fourth hoist member to the support structure at a
position below the water surface, and [0332] raising the third
hoist member and fourth hoist member towards the water surface.
[0333] Clause 118. Method according to clause 117, wherein the
method comprises raising the third hoist member and fourth hoist
member to a position above the water surface.
[0334] Clause 119. Method according to clause 117 or 118, wherein
the provided vessel complies with any of the clauses 55-90 and the
method comprises raising the third hoist member and fourth hoist
member above the support arms.
[0335] Clause 120. Method according to any of the clauses 112-119,
wherein the method comprises dismantling the support structure
while being supported by the support arms.
[0336] Clause 121. Method according to any of the clauses 112-120,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms relative to the
hull before the support structure is raised with the hoisting
system.
[0337] Clause 122. Method according to any of the clauses 112-121,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises fixating the support arms relative to the
hull before the support structure is raised with the hoisting
system.
[0338] Clause 123. Method according to any of the clauses 112-122,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises docking the vessel at the support
structure via at least one docking unit before the support
structure is raised with the hoisting system.
[0339] Clause 124. Method for removing at least a part of a sea
platform comprising a support structure and a top side, wherein the
support structure comprise support legs and the method comprises;
[0340] providing a vessel which complies with any of the clauses
37-90, [0341] positioning the top side support under the top side
such that the hull of the vessel is located between the support
legs, [0342] raising the top side support relative to the water
surface to fully support the top side with the top side support,
[0343] continuing the raising of the top side support to move the
top side at a distance from the support structure and [0344] moving
the vessel away from the support structure in a substantially
horizontal direction while fully supporting the top side with the
top side support.
[0345] Clause 125. Method according to any of the clauses 112-123,
wherein the provided vessel complies with any of the clauses 37-90,
the support structure of the sea platform comprises support legs
and the method comprises [0346] positioning the top side support
under the top side such that the hull of the vessel is located
between the support legs, [0347] raising the top side support
relative to the water surface to fully support the top side with
the top side support, [0348] continuing the raising of the top side
support to move the top side at a distance from the support
structure and [0349] moving the vessel away from the support
structure in a substantially horizontal direction while fully
supporting the top side with the top side support.
[0350] Clause 126. Method according to clause 124 or 125, wherein
the method comprises fully supporting the top side with the top
side support located on the deck of the vessel.
[0351] Clause 127. Method according to any of the clauses 124-126,
wherein the method comprises raising the top side support by
raising the hull of the vessel relative to the water surface.
[0352] Clause 128. Method for installing at least a part of a sea
platform comprising a support structure and a top side, which
method comprises; [0353] providing a vessel according to any of the
clauses 1-90, wherein the top side of the sea platform is fully
supported by the support arms, [0354] positioning the top side
above the support structure such that the support structure is
located between the support arms, [0355] lowering the support arms
relative to the water surface to place the top side on the support
structure, [0356] continuing the lowering of the support arms to
fully transfer the weight of the top side to the support structure
and to move the support arms at a distance from the top side and
[0357] moving the vessel away from the support structure in a
substantially horizontal direction.
[0358] Clause 129. Method according to clause 128, wherein the
provided vessel complies with any of the clauses 11-90 and the
method comprises fully supporting the top side with the support
arms while the top side is positioned on the support surface.
[0359] Clause 130. Method according to clause 128 or 129, wherein
the provided vessel complies with any of the clauses 24-90 and the
method comprises fully supporting the top side with the support
arms via the support units.
[0360] Clause 131. Method according to any of the clauses 128-130,
wherein the method comprises moving the support arms relative to
the hull after the transfer of the weight of the top side to the
support structure.
[0361] Clause 132. Method according to any of the clauses 128-131,
wherein the provided vessel complies with any of the clauses 27-90
and cooperating second coupling members are attached to the top
side and coupled to the first coupling members.
[0362] Clause 133. Method according to clause 132, wherein the
method comprises lowering the support arms relative to the water
surface to decouple the first coupling members from the second
coupling members.
[0363] Clause 134. Method according to clause 132 or 133, wherein
the method comprises moving the support arms relative to the hull
to decouple the first coupling members from the second coupling
members.
[0364] Clause 135. Method according to any of the clauses 128-134,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via the at least one docking unit to positioning the top
side above the support structure such that the support structure is
located between the support arms.
[0365] Clause 136. Method according to any of the clauses 128-135,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via at least one docking unit before the support arms are
lowered relative to the water surface.
[0366] Clause 137. Method according to any of the clauses 128-136,
wherein the method comprises fully supporting the top side with the
support arms by positioning the vessel such that the support arms
are positioned above a quay on which the top side is located and
transferring the top side on to the support arms.
[0367] Clause 138. Method according to clause 137, wherein the top
side is transferred onto the support arms by moving the top side
along the support arms.
[0368] Clause 139. Method according to clause 137 or 138, wherein
the top side is transferred onto the support arms by hoisting the
top side from the quay and placing the top side on the support
arms.
[0369] Clause 140. Method according to any of the clauses 137-139,
wherein the top side is transferred onto the support arm by raising
the support arms.
[0370] Clause 141. Method according to any of the clauses 137-140,
wherein the provided vessel complies with any of the clauses 67-90
and the top side is transferred onto the support arms by moving the
support arm relative to the hull.
[0371] Clause 142. Method for installing at least a part of a sea
platform comprising a support structure and top side, which method
comprises; [0372] providing a vessel according to any of the
clauses 40-90, wherein the support structure is connected to the
hoisting system and fully supported by the support arms, [0373]
lowering the support structure with the hoisting system in a
substantially vertical direction such that the support structure is
placed on the seabed or a foundation provided on the seabed and
[0374] disconnecting the hoisting system from the support
structure.
[0375] Clause 143. Method according to any of the clauses 128-141,
wherein the provided vessel complies with any of the clauses 40-90,
the support structure is connected to the hoisting system and fully
supported by the support arms, and the method comprises [0376]
lowering the support structure with the hoisting system in a
substantially vertical direction such that the support structure is
placed on the seabed or a foundation provided on the seabed, and
[0377] disconnecting the hoisting system from the support
structure.
[0378] Clause 144. Method according to clause 142 or 143, wherein
the provided vessel complies with any of the clauses 43-90, the
first hoist member and second hoist member are connected to the
support structure, and the method comprises; [0379] lowering the
support structure by lowering the first hoist member and second
hoist member towards the seabed, and [0380] disconnecting the first
hoist member and second hoist member from the support structure at
a positioned below the water surface, and [0381] raising the first
hoist member and the second hoist member towards the water
surface.
[0382] Clause 145. Method according to clause 144, wherein the
method comprises raising the first hoist member and the second
hoist member to a position above the water surface.
[0383] Clause 146. Method according to clause 144 or 145, wherein
the provided vessel complies with any of the clauses 50-90 and the
first hoist member and second hoist member are located above the
support arms while being connected to support structure.
[0384] Clause 147. Method according to any of the clauses 144-146,
wherein the provided vessel complies with any of the clauses 44-90,
the third hoist member and fourth hoist member are connected to the
support structure, and the method comprises; [0385] lowering the
support structure by lowering the third hoist member and fourth
hoist member towards the seabed, and [0386] disconnecting the third
hoist member and fourth hoist member from the support structure at
a positioned below the water surface, and [0387] raising the third
hoist member and the fourth hoist member towards the water
surface.
[0388] Clause 148. Method according to clause 147, wherein the
method comprises raising the third hoist member and the fourth
hoist member to a position above the water surface.
[0389] Clause 149. Method according to clause 147 or 148, wherein
the provided vessel complies with any of the clauses 55-90 and the
third hoist member and fourth hoist member are located above the
support arms while being connected to support structure.
[0390] Clause 150. Method for installing at least a part of a sea
platform comprising a support structure and top side, wherein the
support structure comprise support legs and the method comprises;
[0391] providing a vessel which complies with any of the clauses
37-90, and wherein the top side of the sea platform is fully
supported by the top side support, [0392] positioning the top side
above the support structure such that the hull of the vessel is
located between the support legs, [0393] lowering the top side
support relative to the water surface to place the top side on the
support structure, [0394] continuing the lowering of the top side
support to fully transfer the weight of the top side to the support
structure and to move the top side support at a distance from the
top side and [0395] moving the vessel away from the support
structure in a substantially horizontal direction.
[0396] Clause 151. Method according to any of the clauses 142-149,
wherein the provided vessel complies with any of the clauses 37-90,
the top side of the sea platform is fully supported by the top side
support, and the method comprises [0397] positioning the top side
above the support structure such that the hull of the vessel is
located between the support legs, [0398] lowering the top side
support relative to the water surface to place the top side on the
support structure, [0399] continuing the lowering of the top side
support to fully transfer the weight of the top side to the support
structure and to move the top side support at a distance from the
top side and [0400] moving the vessel away from the support
structure in a substantially horizontal direction.
[0401] Clause 152. Method according to clause 150 or 151, wherein
the method comprises fully supporting the top side with the top
side support located on the deck of the vessel.
[0402] Clause 153. Method according to any of the clauses 150-151,
wherein the method comprises lowering the top side support by
lowering the hull of the vessel relative to the water surface.
[0403] Clause 154. Method according to any of the clauses 91-153,
wherein the method comprises fully supporting at least one part of
the sea platform with the outboard extending part of the support
arms.
[0404] Clause 155. Method according to any of the clauses 91-154,
wherein the method comprises fully supporting at least one part of
the sea platform with the inboard extending part of the support
arms.
[0405] Clause 156. Method according to any of the clauses 91-155,
wherein at least two parts of the sea platform are supported by the
support arms
[0406] Clause 157. Method according to any of the clauses 91-156,
wherein the method comprises raising the support arms relative to
the water surface by raising the hull relative to the water
surface.
[0407] Clause 158. Method according to any of the clauses 91-157,
wherein the method comprises lowering the support arms relative to
the water surface by lowering the hull relative to the water
surface.
[0408] Clause 159. Method according to any of the clauses 91-158,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms relative to the
hull.
[0409] Clause 160. Method according to any of the clauses 91-159,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms relative to each
other.
[0410] Clause 161. Method according to any of the clauses 91-160,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms towards each
other.
[0411] Clause 162. Method according to any of the clauses 91-161,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms away from each
other.
[0412] Clause 163. Method according to any of the clauses 91-162,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms in a direction
transverse to the roll axis.
[0413] Clause 164. Method according to any of the clauses 91-162,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms in a direction
perpendicular to the roll axis.
[0414] Clause 165. Method according to any of the clauses 91-164,
wherein the provided vessel complies with any of the clauses 71-90
and the method comprises moving the support arms along the support
trajectory.
[0415] Clause 166. Method according to any of the clauses 91-165,
wherein the provided vessel complies with any of the clauses 74-90
and the method comprises moving the support arms along the support
rail.
[0416] Clause 167. Method according to any of the clauses 91-166,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms to match the
dimensions of the top side which in use will be supported.
[0417] Clause 168. Method according to any of the clauses 91-167,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises moving the support arms to match the
dimensions of the support structure which in use will be
supported.
[0418] Clause 169. Method according to any of the clauses 91-168,
wherein the provided vessel complies with any of the clauses 67-90
and the method comprises fixating the support arms relative to the
hull in a support position.
[0419] Clause 170. Method according to any of the clauses 91-169,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises docking the vessel at the support
structure via the at least one docking unit.
[0420] Clause 171. Method according to any of the clauses 91-170,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises moving the support arms relative to the
hull after the docking of the vessel.
[0421] Clause 172. Method according to any of the clauses 91-171,
wherein the provided vessel complies with any of the clauses 83-90
and the method comprises fixating the support arms relative to the
hull after the docking of the vessel.
[0422] Clause 173. Method according to any of the clauses 91-172,
wherein the method comprises moving said at least one part
supported by the support arms along said support arms.
[0423] Clause 174. Method according to any of the clauses 91-173,
wherein the method comprises moving said at least one part
supported by the support arms along the deck of the vessel.
[0424] Clause 175. Method according to any of the clauses 91-174,
wherein the provided vessel complies with any of the clauses 8-90
and the method comprises moving said at least one part supported by
the support arms in the direction of the roll axis of the
vessel.
[0425] Clause 176. Method according to any of the clauses 91-175,
wherein the provided vessel complies with any of the clauses 40-90
and the method comprises moving said at least one part carried by
the hoisting system along said support arms with the driving
system.
[0426] Clause 177. Method according to any of the clauses 91-176,
wherein the provided vessel complies with any of the clauses 40-90
and the method comprises moving said at least one part carried by
the hoisting system along the rails.
[0427] Clause 178. Method according to any of the clauses 91-177,
wherein the provided vessel complies with any of the clauses 40-90
and the method comprises moving the hoist members along the support
arms with the driving system while carrying the said at least one
part.
[0428] Clause 179. Method according to any of the clauses 91-178,
wherein the provided vessel complies with any of the clauses 40-90
and the method comprises placing said at least one part carried by
the hoisting system on the deck of the vessel.
[0429] Clause 180. Method according to any of the clauses 91-179,
wherein the method comprises transferring said at least one part
from the vessel onto a quay by positioning the second hull side
adjacent to the quay and moving said at least one part from the
vessel to the quay while moving over the second hull side.
[0430] Clause 181. Method according to any of the clauses 91-180,
wherein the method comprises transferring said at least one part
from a quay onto the vessel by positioning the second hull side
adjacent to the quay and moving said at least one part from the
quay to the vessel while moving over the second hull side.
[0431] Clause 182. Method according to any of the clauses 91-182,
wherein said at least one part is the support structure.
[0432] Clause 183. Method according to any of the clauses 91-182,
wherein said at least one part is the top side.
[0433] Clause 184. Method according to any of the clauses 91-183,
wherein the method comprises removing the support structure while
the vessel carries the top side.
[0434] Clause 185. Method according to any of the clauses 91-184,
wherein the method comprises removing the support structure while
the vessel carries a further support structure.
[0435] Clause 186. Method according to any of the clauses 91-185,
wherein the method comprises removing the top side while the vessel
carries a further top side.
[0436] Clause 187. Method according to any of the clauses 91-186,
wherein the method comprises installing the support structure while
the vessel carries the top side.
[0437] Clause 188. Method according to any of the clauses 91-187,
wherein the method comprises installing the support structure while
the vessel carries a further support structure.
[0438] Clause 189. Method according to any of the clauses 91-188,
wherein the method comprises installing the top side while the
vessel carries a further top side.
[0439] Clause 190. Use of a vessel according to any of the clauses
1-90.
[0440] It will be apparent to those skilled in the art that various
modifications can be made to the vessel and method according to the
invention without departing from the scope as defined in the
claims.
* * * * *