U.S. patent application number 15/363939 was filed with the patent office on 2018-05-31 for reaming tool.
The applicant listed for this patent is Chimere Nkwocha. Invention is credited to Chimere Nkwocha.
Application Number | 20180148980 15/363939 |
Document ID | / |
Family ID | 62192722 |
Filed Date | 2018-05-31 |
United States Patent
Application |
20180148980 |
Kind Code |
A1 |
Nkwocha; Chimere |
May 31, 2018 |
REAMING TOOL
Abstract
A reaming tool including a channel body having a fluid channel
disposed therethrough. The channel body includes a rotational
coupling structure that allows the channel body to rotatably
couple. The channel body includes a jacket, a dynamic sleeve, a
static sleeve, and a static mandrel. The reaming tool includes a
rotational discharge body fixedly coupled to the channel body and
including a fluid conduit system. The fluid conduit system is
shaped to impart rotational force on the rotational discharge body
when fluid is forced therethrough. The rotational discharge body
includes a post enclosed by stacked discharge plates. The fluid
conduit system includes an array of curved conduits. The reaming
tool includes a reamer housing fixedly coupled about the rotational
discharge body.
Inventors: |
Nkwocha; Chimere; (Houston,
TX) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Nkwocha; Chimere |
Houston |
TX |
US |
|
|
Family ID: |
62192722 |
Appl. No.: |
15/363939 |
Filed: |
November 29, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E21B 10/60 20130101;
E21B 17/14 20130101; E21B 4/003 20130101; Y10S 415/903 20130101;
E21B 7/28 20130101; E21B 10/26 20130101; F03B 13/02 20130101; E21B
4/02 20130101 |
International
Class: |
E21B 10/60 20060101
E21B010/60; E21B 10/26 20060101 E21B010/26 |
Claims
1. A reaming tool, comprising: a) a channel body, including: a1) a
fluid channel disposed therethrough; and a2) a rotational coupling
structure that allows the channel body to rotatably couple; b) a
rotational discharge body fixedly coupled to the channel body and
including a fluid conduit system in fluid communication with the
fluid channel that is shaped to impart rotational force on the
rotational discharge body when fluid is forced therethrough; and c)
a reamer housing fixedly coupled about the rotational discharge
body and including a reaming structure on an extension thereof and
a fluid outlet in fluid communication with the fluid conduit
system.
2. The tool of claim 1, wherein the rotational coupling structure
includes a bearing pack.
3. The tool of claim 1, wherein the rotational discharge body
includes a post enclosed by stacked discharge plates.
4. The tool of claim 1, wherein the channel body includes: a3) a
jacket functionally coupled to the rotational coupling structure;
a4) a dynamic sleeve functionally coupled to the jacket; a5) a
static sleeve functionally coupled to the jacket; and a6) a static
mandrel functionally coupled to an interior of the jacket.
5. The tool of claim 1, wherein the post has a polygonal
cross-section that mates with polygonal holes through the stacked
plates.
6. The tool of claim 1, wherein the fluid conduit system includes
an array of curved conduits.
7. The tool of claim 1, wherein the reamer housing includes an
impeller sleeve fixedly coupled around the rotational discharge
body without blocking fluid flow therefrom.
8. The tool of claim 7, wherein the impeller sleeve includes a
shoe.
9. The tool of claim 1, further comprising a radial bearing pack
coupled to the reamer housing opposite the channel body.
10. A reaming tool, comprising: a) a channel body, including: a1) a
fluid channel disposed therethrough; and a2) a rotational coupling
structure that allows the channel body to rotatably couple; b) a
rotational discharge body fixedly coupled to the channel body and
including a fluid conduit system in fluid communication with the
fluid channel, the fluid conduit system including an array of
curved conduits; and c) a reamer housing fixedly coupled about the
rotational discharge body and including a reaming structure on an
extension thereof and a fluid outlet in fluid communication with
the fluid conduit system.
11. The tool of claim 10, wherein the rotational coupling structure
includes a bearing pack.
12. The tool of claim 11, wherein the rotational discharge body
includes a post enclosed by stacked discharge plates.
13. The tool of claim 12, wherein the channel body includes: a3) a
jacket functionally coupled to the rotational coupling structure;
a4) a dynamic sleeve functionally coupled to the jacket; a5) a
static sleeve functionally coupled to the jacket; and a6) a static
mandrel functionally coupled to an interior of the jacket.
14. The tool of claim 13, wherein the impeller sleeve includes a
shoe.
15. The tool of claim 14, wherein the post has a polygonal
cross-section that mates with polygonal holes through the stacked
plates.
16. The tool of claim 15, wherein the reamer housing includes an
impeller sleeve fixedly coupled around the rotational discharge
body without blocking fluid flow therefrom.
17. The tool of claim 16, wherein the impeller sleeve includes a
shoe.
18. The tool of claim 17, further comprising a radial bearing pack
coupled to the reamer housing opposite the channel body.
19. A reaming tool, comprising: a) a channel body, including: a1) a
fluid channel disposed therethrough; a2) a rotational coupling
structure that allows the channel body to rotatably couple; a3) a
jacket functionally coupled to the rotational coupling structure;
a4) a dynamic sleeve functionally coupled to the jacket; a5) a
static sleeve functionally coupled to the jacket; and a6) a static
mandrel functionally coupled to an interior of the jacket b) a
rotational discharge body fixedly coupled to the channel body and
including a fluid conduit system in fluid communication with the
fluid channel that is shaped to impart rotational force on the
rotational discharge body when fluid is forced therethrough;
wherein the rotational discharge body includes a post enclosed by
stacked discharge plates; wherein the post has a polygonal
cross-section that mates with polygonal holes through the stacked
plates; wherein the fluid conduit system includes an array of
curved conduits; c) a reamer housing fixedly coupled about the
rotational discharge body and including a reaming structure on an
extension thereof and a fluid outlet in fluid communication with
the fluid conduit system; wherein the reamer housing includes an
impeller sleeve fixedly coupled around the rotational discharge
body without blocking fluid flow therefrom; wherein the impeller
sleeve includes a shoe; and d) a radial bearing pack coupled to the
reamer housing opposite the channel body.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This invention claims priority, under 35 U.S.C. .sctn. 120,
to the U.S. Provisional Patent Application No. 62/258,293 to
Chimere Nkwocha filed on Nov. 20, 2015, which is incorporated by
reference herein.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The present invention relates to earth drilling,
specifically a new and improved reaming tool such as may be used in
drilling earth for oil.
Description of the Related Art
[0003] A reamer is a type of rotary cutting tool used to clean
and/or enlarge the size of a previously formed hole, generally to
leave the sides of the hole sufficiently smooth for later purposes.
The process of so cleaning and/or enlarging the hole is called
reaming. There are many different types of reamer and they may be
designed for use as a hand tool or in a machine tool, such as a
milling machine or drill press, in drilling system for drilling for
oil, and/or in other earth drilling contexts, etc.
[0004] In the context of drilling for oil, once a hole is drilled,
the hole so drilled will generally not maintain a clean, smooth
profile. Drilling changes the fundamental characteristics of the
surrounding and produces a void with respect to pressure, water
content, and even chemical interactions may occur by exposing the
materials surrounding the hole to the air. Further, natural
layering, fissures, facture lines and etc. may react different to
the hole than the surrounding material. Accordingly, such holes
will often end up with discontinuities that make it difficult to
operate the hole as desired. Thus, reaming systems/devices may be
used to make the sides of the hole sufficiently smooth for
continued operation. Also, it is often useful to follow the reaming
with a pipe that then prevents further distortion of the
surrounding material from intruding on the working portion of the
hole.
[0005] Where a pipe follows the reaming device, it would be
difficult and expensive to retrieve the reaming device since the
pipe is literally right behind the device and the device must have
a large enough profile to make room for the pipe. Accordingly, the
reaming device is generally left in the hole at the bottom of the
pipe. Wherein further drilling needs to occur, the drill will
generally just drill through the reaming device on its way
past.
[0006] Some improvements have been made in the field. Examples of
references related to the present invention are described below in
their own words, and the supporting teachings of each reference are
incorporated by reference herein:
[0007] U.S. Pat. No. 9,080,384, issued to Walerianczyk, discloses
an apparatus for cutting a wellbore includes a motor having a
stator and a rotor. The rotor has an output shaft connected to a
cutting structure. The stator and rotor are spaced radially
outwardly of the axis of rotation of the rotor such that at least
one of the stator and the rotor had an access bore extending
through the motor to adjacent the cutting structure. A further
object can pass therethrough, without obstruction. The further
object comprises a further cutting. A flow diverter is disposed in
the motor proximate a connection between the motor and a wellbore
tubular, and has a first fluid outlet in fluid communication with a
power section of the motor, and a second fluid outlet in fluid
communication with the access bore. The flow diverter is coupled to
the stator such that axial loading created by fluid pressure is
substantially transferred to the stator.
[0008] U.S. Pat. No. 5,230,388, issued to Cherrington, discloses an
apparatus for removing debris from a bore hole comprises a housing
having apertures formed therein such that rotation of the housing
causing entrapment of the cuttings from the bore hole. The positive
displacement pump comprises a rotor surrounded by a stator coupled
to the housing such that rotation of the stator rotates the
housing. The positive displacement pump is operable to pump
material from the housing responsive to relative movement between
the rotor and stator. A motor rotates the stator, thereby cleaning
the bore hole.
[0009] U.S. Pat. No. 6,659,200, issued to Eppink, discloses an
actuator assembly is a valve-less, high pressure, positive
displacement, axial drive system including a hydraulic fluid
reservoir and a hydraulic enclosure in an actuator housing with a
bi-directional pump assembly driven by an electric motor and a
piston assembly disposed within the hydraulic enclosure. The
bi-directional pump accurately displacing the piston a given
distance to exert a large drive or actuation force and to maximize
that actuation force given a limited electrical current transmitted
to the motor. Because the pump is bi-directional, the piston can be
repositioned after actuation by reversing the direction of flow
through the pump without using valves to direct the hydraulic fluid
flow. The actuator assembly may also include a piston repositioning
assembly connected to the hydraulic enclosure.
[0010] U.S. Pat. No. 7,413,032, issued to Krueger, discloses a
system and method of controlling a trajectory of a wellbore
comprises conveying a drilling assembly in the wellbore by a
rotatable tubular member. The drilling assembly includes a drill
bit at an end thereof that is rotatable by a drilling motor carried
by the drilling assembly. The drilling assembly has a first
adjustable stabilizer and an second stabilizer spaced apart from
the first adjustable stabilizer. The first adjustable stabilizer
having set of ribs spaced around the stabilizer, with each rib
being independently radially extendable. The position of a first
center of the first adjustable stabilizer is adjusted in the
wellbore relative to a second center of the second stabilizer in
the wellbore for controlling the trajectory of the wellbore.
[0011] U.S. Pat. No. 7,921,937, issued to Brackin et al., discloses
drilling tools that may detect and dynamically adjust drilling
parameters to enhance the drilling performance of a drilling system
used to drill a well. The tools may include sensors, such as RPM,
axial force for measuring the weight on a drill bit, torque,
vibration, and other sensors known in the art. A processor may
compare the data measured by the sensors against various drilling
models to determine whether a drilling dysfunction is occurring and
what remedial actions, if any, ought to be taken. The processor may
command various tools within the bottom hole assembly (BHA),
including a bypass valve assembly and/or a hydraulic thruster to
take actions that may eliminate drilling dysfunctions or improve
overall drilling performance. The processor may communicate with a
measurement while drilling (MWD) assembly, which may transmit the
data measured by the sensors, the present status of the tools, and
any remedial actions taken to the surface.
[0012] The inventions heretofore known suffer from a number of
disadvantages which include being difficult to use, being easily
damaged, being expensive, being difficult to replace, being limited
in application, being limited in use, being limited in
capabilities, losing the drill string, being slow, being cumbersome
to use, not being convenient, and being likely to get stuck.
[0013] What is needed is a reaming tool that solves one or more of
the problems described herein and/or one or more problems that may
come to the attention of one skilled in the art upon becoming
familiar with this specification.
SUMMARY OF THE INVENTION
[0014] The present invention has been developed in response to the
present state of the art, and in particular, in response to the
problems and needs in the art that have not yet been fully solved
by currently available reaming tools. Accordingly, the present
invention has been developed to provide an improved reaming tool
that is more efficient and effective then previous reaming
tools.
[0015] According to one embodiment of the invention, there is a
reaming tool including a channel body. The channel body may include
a fluid channel that may be disposed therethrough. The channel body
may have a rotational coupling structure that may allow the channel
body to rotatably couple to another structure. The channel body may
include a jacket that may be functionally coupled to the rotational
coupling structure. The channel body may have a dynamic sleeve that
may be functionally coupled to the jacket. The channel body may
include a static sleeve that may be functionally coupled to the
jacket. The channel body may have a static mandrel that may be
functionally coupled to an interior of the jacket.
[0016] The reaming tool may include a rotational discharge body
that may be fixedly coupled to the channel body. The rotational
discharge body includes a fluid conduit system that may be in fluid
communication with the fluid channel. The fluid conduit system may
be shaped to impart rotational force on the rotational discharge
body when fluid is forced therethrough. The rotational discharge
body may include a post that may be enclosed by stacked discharge
plates. The post may have a polygonal cross-section that mates with
polygonal holes through the stacked plates. The fluid conduit
system may include an array of curved conduits.
[0017] The reaming tool may include a reamer housing that may be
fixedly coupled about the rotational discharge body. The reamer
housing may include a reaming structure that may be on an extension
thereof. The reamer housing may include a fluid outlet that may be
in fluid communication with the fluid conduit system. The reamer
housing may include an impeller sleeve that may be fixedly coupled
around the rotational discharge body without blocking fluid flow
therefrom. The impeller sleeve may include a shoe. The reaming tool
may include a radial bearing pack that may be coupled to the reamer
housing opposite the channel body.
[0018] Reference throughout this specification to features,
advantages, or similar language does not imply that all of the
features and advantages that may be realized with the present
invention should be or are in any single embodiment of the
invention. Rather, language referring to the features and
advantages is understood to mean that a specific feature,
advantage, or characteristic described in connection with an
embodiment is included in at least one embodiment of the present
invention. Thus, discussion of the features and advantages, and
similar language, throughout this specification may, but do not
necessarily, refer to the same embodiment.
[0019] Furthermore, the described features, advantages, and
characteristics of the invention may be combined in any suitable
manner in one or more embodiments. One skilled in the relevant art
will recognize that the invention can be practiced without one or
more of the specific features or advantages of a particular
embodiment. In other instances, additional features and advantages
may be recognized in certain embodiments that may not be present in
all embodiments of the invention.
[0020] These features and advantages of the present invention will
become more fully apparent from the following description and
appended claims, or may be learned by the practice of the invention
as set forth hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order for the advantages of the invention to be readily
understood, a more particular description of the invention briefly
described above will be rendered by reference to specific
embodiments that are illustrated in the appended drawing(s). It is
noted that the drawings of the invention are not to scale. The
drawings are mere schematics representations, not intended to
portray specific parameters of the invention. Understanding that
these drawing(s) depict only typical embodiments of the invention
and are not, therefore, to be considered to be limiting its scope,
the invention will be described and explained with additional
specificity and detail through the use of the accompanying
drawing(s), in which:
[0022] FIG. 1 is a side perspective view of a reaming tool,
according to one embodiment of the invention;
[0023] FIG. 2 is a partially-exploded perspective view of a reaming
tool, according to one embodiment of the invention;
[0024] FIG. 3 is a partially-exploded side perspective view of a
portion of a reaming tool, according to one embodiment of the
invention;
[0025] FIG. 4 is a partially-exploded side perspective view of a
portion of a reaming tool, according to one embodiment of the
invention;
[0026] FIG. 5 is a front partially-exploded perspective view of a
portion of a reaming tool, according to one embodiment of the
invention;
[0027] FIG. 6 is a partial side elevational partially-exploded view
of a portion of a reaming tool, according to one embodiment of the
invention;
[0028] FIG. 7 is a partial side elevational partially-exploded view
of a portion of a reaming tool, according to one embodiment of the
invention;
[0029] FIG. 8 is a side elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention;
[0030] FIG. 9 is a perspective view of a plurality of discharge
ports of a reaming tool, according to one embodiment of the
invention;
[0031] FIG. 10 is a side elevational partially-exploded view of a
portion of reaming tool, according to one embodiment of the
invention;
[0032] FIG. 11 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention;
[0033] FIG. 12 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention; and
[0034] FIG. 13 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention.
DETAILED DESCRIPTION OF THE INVENTION
[0035] For the purposes of promoting an understanding of the
principles of the invention, reference will now be made to the
exemplary embodiments illustrated in the drawing(s), and specific
language will be used to describe the same. It will nevertheless be
understood that no limitation of the scope of the invention is
thereby intended. Any alterations and further modifications of the
inventive features illustrated herein, and any additional
applications of the principles of the invention as illustrated
herein, which would occur to one skilled in the relevant art and
having possession of this disclosure, are to be considered within
the scope of the invention.
[0036] Reference throughout this specification to an "embodiment,"
an "example" or similar language means that a particular feature,
structure, characteristic, or combinations thereof described in
connection with the embodiment is included in at least one
embodiment of the present invention. Thus, appearances of the
phrases an "embodiment," an "example," and similar language
throughout this specification may, but do not necessarily, all
refer to the same embodiment, to different embodiments, or to one
or more of the figures. Additionally, reference to the wording
"embodiment," "example" or the like, for two or more features,
elements, etc. does not mean that the features are necessarily
related, dissimilar, the same, etc.
[0037] Each statement of an embodiment, or example, is to be
considered independent of any other statement of an embodiment
despite any use of similar or identical language characterizing
each embodiment. Therefore, where one embodiment is identified as
"another embodiment," the identified embodiment is independent of
any other embodiments characterized by the language "another
embodiment." The features, functions, and the like described herein
are considered to be able to be combined in whole or in part one
with another as the claims and/or art may direct, either directly
or indirectly, implicitly or explicitly.
[0038] As used herein, "comprising," "including," "containing,"
"is," "are," "characterized by," and grammatical equivalents
thereof are inclusive or open-ended terms that do not exclude
additional unrecited elements or method steps. "Comprising" is to
be interpreted as including the more restrictive terms "consisting
of" and "consisting essentially of."
[0039] FIG. 1 is a side perspective view of a reaming tool,
according to one embodiment of the invention. There is shown a
reaming tool 10 having a channel body 12 coupled to a reamer
housing 40 by a rotational coupling structure 16 such that the
reamer housing may rotate in relation to the channel body. The
illustrated reamer housing 40 includes a reaming structure 42 on
the exterior thereof that is shaped to ream material within a hole
when the reamer housing rotates. At an end of the illustrated
reaming tool 10 is a shoe 48 having fluid outlets 44 so that fluid
flowing through the reaming tool may exit the front thereof.
[0040] The illustrated reaming tool 10 includes a channel body 12.
The channel body 12 includes a fluid channel disposed therethrough
through which drilling fluid may flow from a back end of the tool
to exit a front end of the tool at the illustrated shoe 48. In
operation, the channel body couples to a drilling/reaming string
through which drilling fluid flows and the channel body is in fluid
communication with the drilling/reaming string. The channel body is
shaped to have a substantially similar cross-sectional profile to
the drilling/reaming string, such that it may couple thereto, may
allow fluid therefrom to flow therethrough, and may pass through a
hole that the drilling/reaming string passes through.
[0041] The illustrated channel body 12 includes or is coupled to a
rotational coupling structure 16 that allows the channel body 12 to
rotatably couple to a reamer housing 40. Generally, such will
include a bearing pack (See FIGS. 12 and 13, element 50) that
couples to each of the channel body and the reamer housing in a
manner that keeps them connected but allows for rotation of the
reamer housing on a rotational axis aligned with a long axis of the
tool. Bearing packs (or other similar structures, such as but not
limited to magnetic bearing systems) may be of various types that
permit the desired rotational relationship. Such may include ball
bearings, roller bearings, jewel bearings, fluid bearings, flexure
bearings, composite bearings and the like and combinations thereof
and such bearings may be made of various materials suitable for the
desired operational characteristics and product life. Generally
chrome steel ball bearings are utilized herewith.
[0042] The illustrated reamer housing 40 is fixedly coupled about a
rotational discharge body (See FIG. 4, element 28) that is
rotatably coupled to the channel body and in fluid communication
therewith. The reamer housing 40 includes a reaming structure 42
that is an extension thereof that scrapes against an interior of a
hole through which the tool is disposed in order to ream the hole.
The reamer housing 40 includes an impeller sleeve (See FIG. 5,
element 46) fixedly coupled around the rotational discharge body
without blocking fluid flow therefrom.
[0043] The illustrated reaming tool 10 includes a shoe 48 having
plurality of fluid outlets 44 disposed about the shoe 48. The shoe
guides the string during insertion and provides an exit locus for
fluid flowing through the tool.
[0044] According to one embodiment of the invention, there is a
reaming tool or system 10 designed to provide improved efficiency
and effectiveness while drilling. Previously, there was a curved
stator system similar to an auger to create rotation and possibly
torque. The current system is used in down-hole mud motor systems
and/or may use a rotor and stator configuration rather than a
turbine or auger system.
[0045] In one embodiment, there is a low tier, simple and cheap
float shoe with an internal profiled block that is held in the
lower part of the tool by screws through the external rotating
member. This system is capable of generating much improved torque
with rotation. Rotation is created by flowing through the casing or
liner string and subsequently through the profiled block inside the
tool which then creates rotation. This tool comes with single or
multiple nozzles to improve fluid dispersion and deposition within
the borehole. The lower section of the tool that rotates is made
with steel (where drill out capabilities is not required) or with
substitute materials that is easily drill able with a PDC bit. A
bearing located within the upper sub ensures the entire lower
assembly rotates. Generally, bearing pack(s) are drillable and/or
are made of drillable material.
[0046] The illustrated reaming system provides one or more of the
the following advantages: designed to replace the standard float
shoes, improves cementing through uniform deposition of fluids
circumferentially inside the borehole, be able to help with reaming
limited obstructions, ledges or tight spots, may be made to
standard reamer shoe sizes depending on the required application,
the internal profiled unit may be made of PDC drillable material.
Current design uses aluminium but future designs may include
thermoplastic, cement and a combination of drillable material.
[0047] According to one embodiment of the invention, there is a
reaming tool 10 having a housing with reaming functions for
drilling applications. The reaming tool includes a reaming
structure that is hydraulically powered without a need for the
string to rotate. The reaming tool allows a user to ream out the
hole as the drill string goes down. In addition, the reaming tool
allows the user to bring the string back up if it is stuck in the
drill hole. Furthermore, the user may activate the reaming tool to
ream along the way up.
[0048] According to one embodiment of the invention, there is a
reaming tool 10 that provides a drilling string reaming attachment
that is hydraulically powered and thus rotates without string
rotation.
[0049] In operation, the illustrated tool is coupled to an end of a
string and dropped down a drill hole. Fluid is pumped through the
string and thereby through the tool, which causes the reaming
housing having reaming structure disposed thereon to rotate,
thereby reaming the hole. The tool may be lowered/raised as desired
to ream in regions of the hole where reaming may be needed due to
deformations of the interior of the hole.
[0050] FIGS. 2-13 illustrate disassembly (or, in opposite order,
assembly) of a reaming tool according to one embodiment of the
invention as illustrated in FIG. 1, with FIGS. 6 and 7 including
alternative embodiments of discharge structure (stacked plates v.
single body).
[0051] FIG. 2 is a partially-exploded perspective view of a reaming
tool, according to one embodiment of the invention. There is shown
a reaming tool 10 including a channel body 12 coupled to a reamer
housing 40 by a rotational coupling structure 16. The reaming tool
10 also includes a radial bearing pack 50 functionally coupled to
the channel body 12 and the reamer housing 40 to which a shoe 48
may be functionally coupled, thereby permitting free-rotation of
the show 48 with respect to the reamer housing 40. This prevents
the shoe and the reaming structure from interfering with each other
during operation of the tool.
[0052] FIG. 3 is a partially-exploded side perspective view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 includes a channel body
12 coupled to a reamer housing 40 having a radial bearing pack
50.
[0053] The illustrated reaming tool 10 includes a channel body 12
coupled to a reamer housing 40 to support and protect the
components and parts of the reaming tool 10 during use and to
prevent fluid from escaping the reamer housing. The reamer housing
40 is fixedly coupled about a rotational discharge body. The reamer
housing 40 includes a reaming structure that is an extension
thereof. The reaming tool 10 includes a radial bearing pack 50
coupled to the reamer housing 40 opposite a channel body 12 to
which a shoe may be coupled.
[0054] FIG. 4 is a partially-exploded side perspective view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 functionally coupled to a reamer housing 40. The reaming
tool 10 also includes a rotational discharge body 28 having a post
32 enclosed by stacked discharge plates 34. The illustrated reamer
housing 40 friction fits and couples about the rotational discharge
body as a sleeve.
[0055] The illustrated reaming tool 10 includes a channel body 12
having a fluid channel disposed therethrough. The channel body 12
includes a rotational coupling structure that allows the channel
body 12 to rotatably couple to a reamer housing 40. The reamer
housing 40 is disposed over a jacket of the channel body 12. The
reaming tool 10 includes a rotational discharge body 28 fixedly
coupled to the channel body 12. The rotational discharge body 28
includes a fluid conduit system in fluid communication with the
fluid channel. The fluid conduit system is shaped to impart
rotational force on the rotational discharge body 28 when fluid is
forced therethrough. Generally, such a shape will be a spiral or
other shape that transforms fluid pressure/flow into angular
momentum for the rotational discharge body.
[0056] The illustrated rotational discharge body 28 includes a post
32 enclosed by stacked discharge plates 34. The stacked discharge
plates 34 each include a plurality of channels therethrough that
are in fluid communication with apertures through the post 32.
Fluid flowing from the string to the post exits the post through
such apertures and thereby into the channels within the discharge
plates and then out an exterior surface of the discharge plates to
then flow towards the shoe and out thereof. Since the illustrated
discharge plates are fixedly coupled to the post such that they
cannot rotate about the post, any rotational momentum experienced
by the discharge plates is transferred to the post, which is
rotatably coupled to the string, thereby allowing the post, and
thus the reamer housing, to rotate in relation to the string.
[0057] FIG. 5 is a front partially-exploded perspective view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a including a reamer housing 40 and an
impeller sleeve 46. The impeller sleeve is shaped and sized to
friction fit within the reamer housing. It is also shaped and sized
to friction fit about the discharge body/plates but allow fluid to
flow out of the channels thereof. Accordingly, this provides a
strong non-rotatable coupling between the discharge body/plates and
the reamer housing such that rotation of the post and discharge
body/plates induces rotation of the reamer housing.
[0058] The reamer housing 40 includes a reaming structure that is
on an extension thereof. The reamer housing 40 includes a fluid
outlet that is in fluid communication with a fluid conduit system.
The reamer housing 40 includes an impeller sleeve 46 fixedly
coupled around the rotational discharge body without blocking fluid
flow therefrom. The impeller sleeve 46 is designed to installed
within the reamer housing.
[0059] In one embodiment of the invention, the impeller sleeve 46
is exposed to dry ice for about forty-five minutes to shrink the
impeller sleeve 46 in order to fit within the reamer housing 40.
Ideally, the impeller sleeve 46 is hydraulically pressed into the
reamer housing after the dry ice bath. Proper alignment and
installation of the impeller sleeve 46 into the reamer housing 40
is important to functionality of the reaming tool 10. Pressure may
be applied to the impeller sleeve 46 for about thirty seconds after
shouldering the impeller sleeve 46 into the reamer housing 40 to
properly seat the same.
[0060] FIG. 6 is a partial side elevational partially-exploded view
of a portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 functionally coupled to a rotational discharge body 28
having a post 32 enclosed by stacked discharge plates 34. The
illustrated post terminates in a connecting nut, which is
illustrated.
[0061] The illustrated reaming tool 10 includes a channel body 12
having jacket 18 functionally coupled thereto. The rotational
discharge body 28 includes a fluid conduit system in fluid
communication with a fluid channel. The fluid conduit system is
shaped to impart rotational force on the rotational discharge body
28 when fluid is forced therethrough. The rotational discharge body
28 includes a post 32 enclosed by stacked discharge plates 34;
wherein the stacked discharge plates 34 provides rotational fluid
movement.
[0062] Advantageously, a plurality of stacked discharge plates
allow for easier transport and manufacturing of a discharge body as
compared to a solid discharge body (e.g. the single discharge block
60 of FIG. 7).
[0063] FIG. 7 is a partial side elevational partially-exploded view
of a portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 includes a channel body
12 coupled to a rotational discharge body 28 having a post 32
enclosed by a single discharge block 60. The illustrated post
terminates in a connecting nut, which is illustrated.
[0064] The illustrated reaming tool 10 includes a channel body 12
having a jacket functionally coupled thereto. The rotational
discharge body 28 includes a fluid conduit system in fluid
communication with a fluid channel. The fluid conduit system is
shaped to impart rotational force on the rotational discharge body
28 when fluid is forced therethrough. The rotational discharge body
28 includes a post 32 enclosed by a single discharge block 60. The
single discharge block 60 functions the same as a plurality of
stacked discharge plates, but disposed within a single block plate
that slides onto the post 32.
[0065] FIG. 8 is a side elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12, a rotational discharge body 28 having a post 32 enclosed
by single discharge plate 33 of a stack of discharge plates. Such
discharge plates may be slid on/off the post 32 wherein the
discharge plates ring therearound. The post is shaped to have a
non-cylindrical cross-section so that discharge plates having a
hole with the same cross-section are locked in rotational position
about the post and no able to rotate around. This locks the fluid
conduits of the discharge plates to be aligned with the apertures
in the post and prevents slippage when the discharge plates begin
to rotate during operation.
[0066] The illustrated reaming tool 10 includes a channel body 12
having a fluid channel disposed therethrough. The channel body 12
includes a rotational coupling structure 16 that allows the channel
body 12 to rotatably couple to a reamer housing (not shown). The
channel body 12 includes a jacket 18 functionally coupled to the
rotational coupling structure 16; a dynamic sleeve 20 functionally
coupled to the jacket 18; a static sleeve 22 functionally coupled
to the jacket 18; and a static mandrel 24 functionally coupled to
an interior of the jacket 18.
[0067] The reaming tool 10 includes a rotational discharge body 28
fixedly coupled to the channel body 12. The rotational discharge
body 28 includes a fluid conduit system 30 in fluid communication
with the fluid channel. The fluid conduit system 30 is shaped to
impart rotational force on the rotational discharge body 28 when
fluid is forced therethrough. The rotational discharge body 28
includes a post 32 configured to allow stacked discharge plates to
be functionally coupled thereto. The post 32 has a polygonal
cross-section that mates with polygonal holes through the stacked
plates.
[0068] FIG. 9 is a perspective view of a plurality of discharge
ports of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a rotational
discharge body 28 having a post 32 and a discharge plate 33 with an
array of curved conduits 38.
[0069] The illustrated reaming tool 10 includes a rotational
discharge body 28 fixedly coupled to a channel body. The rotational
discharge body 28 includes a fluid conduit system 30 in fluid
communication with a fluid channel of the channel body. The fluid
conduit system 30 is shaped to impart rotational force on the
rotational discharge body 28 when fluid is forced therethrough. The
rotational discharge body 28 includes a post 32 enclosed by stacked
discharge plates 34. The post 32 has a polygonal cross-section that
mates with polygonal holes through the stacked plates 34. The
illustrated fluid conduit system 30 includes an array of curved
conduits 38 to impart rotational energy.
[0070] FIG. 10 is a side elevational partially-exploded view of a
portion of reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 having a static mandrel 24, a rotational discharge body
having a post 32 and a connecting nut 70.
[0071] The illustrated reaming tool 10 includes a channel body 12
having a fluid channel disposed therethrough. The channel body 12
includes a static mandrel 24 functionally coupled to an interior of
a jacket of the channel body 12. The reaming tool 10 includes a
rotational discharge body 28 fixedly coupled to the channel body.
The rotational discharge body 28 includes a fluid conduit system 30
in fluid communication with the fluid channel. The fluid conduit
system 30 is shaped to impart rotational force on the rotational
discharge body 28 when fluid is forced therethrough. The rotational
discharge body 28 includes a post 32 sized and shaped to be
enclosed by stacked discharge plates. The post 32 includes a
polygonal cross-section 36 that mates with polygonal holes through
the stacked plates. The stacked plates are secured to the post 32
by a connecting nut 70.
[0072] FIG. 11 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 having a fluid channel 12, a rotational coupling structure
16, a jacket 18, a dynamic sleeve 20, a static sleeve 22, and a
static mandrel 24.
[0073] The illustrated reaming tool 10 includes a channel body 12.
The channel body 12 includes a fluid channel 14 disposed
therethrough. The channel body 12 includes a rotational coupling
structure 16 that allows the channel body 12 to rotatably couple to
a reamer housing (not shown). The channel body 12 includes a jacket
18 functionally coupled to the rotational coupling structure 16.
The channel body 12 includes a dynamic sleeve 20 functionally
coupled to the jacket 18. The channel body 12 includes a static
sleeve 22 functionally coupled to the jacket 18. The illustrated
channel body 12 includes a static mandrel 24 functionally coupled
to an interior of the jacket 18. The static mandrel 24 is disposed
within the jacket 18 by a hydraulic press to insure proper
alignment and functionally coupling thereto.
[0074] FIG. 12 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 having a jacket 18, a dynamic sleeve 20, a static sleeve
22, and a radial bearing pack 50.
[0075] The illustrated reaming tool 10 includes a channel body 12.
The channel body 12 includes a fluid channel disposed therethrough;
and a rotational coupling structure that allows the channel body to
rotatably couple. The channel body 12 includes a jacket 18
functionally coupled to the rotational coupling structure. The
channel body 12 includes a dynamic sleeve 20 functionally coupled
to the jacket 18. The channel body 12 includes a static sleeve 22
functionally coupled to the jacket 18. The reaming tool 10 includes
a radial bearing pack 50 coupled to a reamer housing opposite the
channel body 12.
[0076] FIG. 13 is a front elevational partially-exploded view of a
portion of a reaming tool, according to one embodiment of the
invention. There is shown a reaming tool 10 including a channel
body 12 having a jacket 18, a dynamic sleeve 20, and a radial
bearing pack 50.
[0077] The illustrated reaming tool 10 includes a channel body 12.
The channel body 12 includes a fluid channel disposed therethrough
and a rotational coupling structure that allows the channel body 12
to rotatably couple to parts and components of the reaming tool 10.
The channel body 12 includes a jacket 18 functionally coupled to
the rotational coupling structure. The channel body 12 includes a
dynamic sleeve 20 functionally coupled to the jacket 18. The
channel body 12 includes a static sleeve 22 functionally coupled to
the jacket 18. The reaming tool 10 includes a radial bearing pack
50 coupled to a reamer housing opposite the channel body 12.
[0078] In one non-limiting embodiment, the following are assembly
instructions for a reaming tool according to one non-limiting
embodiment:
[0079] Stand a jacket upright on a box connection. Install
On-Bottom chromes steel ball bearings into a bearing land located
on the jacket. Carefully slide a dynamic sleeve onto the jacket.
Install Off-Bottom chrome steel ball bearings into a bearing land
location on the dynamic sleeve. Apply thread compound to a static
sleeve. Gently thread the static sleeve onto the jacket.
[0080] While clamping the jacket, install a static sleeve torque
jig into the static sleeve and torque the static sleeve to a
predefined specification. Press a static mandrel into (inside) the
jacket using a hydraulic press, making sure that the static mandrel
is properly aligned, so that any connector holes are centered.
Install screws through connector holes in the static mandrel and
torque to predefined specifications.
[0081] Install an impeller sleeve into a reamer housing. The
friction fit between the reamer housing and the impeller sleeve is
generally very strong and temperature shrinking techniques may be
required to shrink the impeller sleeve sufficiently to put it in
place within the reamer housing. Pressure may need to be applied to
the impeller sleeve within the reamer housing as the impeller
sleeve returns to ambient temperature to prevent hydraulic
lift.
[0082] While clamping on the jacket, thread a post (J-Rod) into the
static mandrel until it bottoms out therein. Slid discharge plates
or a discharge body onto the J-Rod, ensuring that such are properly
oriented so that discharge channels match up with apertures through
the J-Rod. Thread a connecting nut onto the J-Rod to lock the
discharge plates/body onto the J-Rod.
[0083] Thread the reamer housing onto the dynamic sleeve. Thread a
radial bearing onto the connecting nut of the J-Rod. Torque each to
a predefined specification. Clamp onto the reamer housing and
torque the dynamic sleeve to a predefined specification, but do not
clamp onto reaming structure of the reamer housing to prevent
damage thereto.
[0084] Thread a shoe (Nose) into the reamer housing and torque to a
predefined specification.
[0085] Install the tool on a string.
[0086] It is understood that the above-described embodiments are
only illustrative of the application of the principles of the
present invention. The present invention may be embodied in other
specific forms without departing from its spirit or essential
characteristics. The described embodiment is to be considered in
all respects only as illustrative and not restrictive. The scope of
the invention is, therefore, indicated by the appended claims
rather than by the foregoing description. All changes which come
within the meaning and range of equivalency of the claims are to be
embraced within their scope.
[0087] For example, although the figures illustrate a particular
reaming structure disposed on an exterior of a reamer housing, it
is understood that such reaming structures are plethoric and of
various shapes, sizes, and configurations and that many such
configurations are suitable and/or specialized for various types of
reaming or reaming situations and that any such may be utilized
herewith.
[0088] Additionally, although the figures illustrate a shoe having
a particular shape and configuration, it is understood that such
shoes/noses are plethoric and of various shapes, sizes, and
configurations and that many such configurations are suitable
and/or specialized for various types of uses and situations and
that any such may be utilized herewith.
[0089] It is also envisioned that channels within the discharge
body may be shaped differently from the illustrated array of
spirals, including but not limited to line-segment spirals, elbows,
discontinuous curves, straight lines with deflector structure at an
end thereof, and the like and combinations thereof.
[0090] It is expected that there could be numerous variations of
the design of this invention. An example is that the presence,
configuration, orientation, relationship, coupling, and shape of
any one or more of the illustrated sleeves, jackets, mandrels and
the like may be altered so long as the tool is able to
hydraulically rotate separately from the string.
[0091] Finally, it is envisioned that while metals are primarily
used in reaming tools, the components of the device may be
constructed of a variety of materials, including but not limited to
various metals, ceramics, rubbers, plastics, polymers, stone, wood,
composites and the like and combinations thereof.
[0092] Thus, while the present invention has been fully described
above with particularity and detail in connection with what is
presently deemed to be the most practical and preferred embodiment
of the invention, it will be apparent to those of ordinary skill in
the art that numerous modifications, including, but not limited to,
variations in size, materials, shape, form, function and manner of
operation, assembly and use may be made, without departing from the
principles and concepts of the invention as set forth in the
claims. Further, it is contemplated that an embodiment may be
limited to consist of or to consist essentially of one or more of
the features, functions, structures, methods described herein.
* * * * *