U.S. patent application number 14/465503 was filed with the patent office on 2015-02-26 for apparatus and method for mixing fluids.
The applicant listed for this patent is SCHLUMBERGER TECHNOLOGY CORPORATION. Invention is credited to VICTORIA LEE, JAGDISH SHAH, RONALD E. G. VAN HAL.
Application Number | 20150053400 14/465503 |
Document ID | / |
Family ID | 52479316 |
Filed Date | 2015-02-26 |
United States Patent
Application |
20150053400 |
Kind Code |
A1 |
VAN HAL; RONALD E. G. ; et
al. |
February 26, 2015 |
APPARATUS AND METHOD FOR MIXING FLUIDS
Abstract
Apparatuses and methods for mixing a first fluid with a second
fluid are described herein. One such apparatus includes a chamber
that contains the first fluid and the second fluid. The apparatus
also includes a piston that is positioned within the chamber and
that is movable within the chamber. The piston can move back and
forth to mix the first fluid and the second fluid together. The
apparatus further includes a restrictor that provides for
controlled movement of the piston and thus protects the piston and
other components of the apparatus during operation.
Inventors: |
VAN HAL; RONALD E. G.;
(BELMONT, MA) ; SHAH; JAGDISH; (CHESHIRE, CT)
; LEE; VICTORIA; (CAMBRIDGE, MA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SCHLUMBERGER TECHNOLOGY CORPORATION |
SUGAR LAND |
TX |
US |
|
|
Family ID: |
52479316 |
Appl. No.: |
14/465503 |
Filed: |
August 21, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61868419 |
Aug 21, 2013 |
|
|
|
Current U.S.
Class: |
166/264 ;
166/162; 166/65.1 |
Current CPC
Class: |
E21B 49/08 20130101 |
Class at
Publication: |
166/264 ;
166/162; 166/65.1 |
International
Class: |
E21B 49/08 20060101
E21B049/08 |
Claims
1. A wellbore tool for mixing a first fluid with a second fluid,
the wellbore tool comprising: a chamber having a first end, a
second end, a first opening at the first end, and a second opening
at the second end; a piston positioned within the chamber, wherein
the piston generates a seal between the first end and the second
end of the chamber and is movable along the chamber towards the
first end and towards the second end of the chamber; a restrictor
positioned at the first end of the chamber and configured (i) to
allow the flow of fluid through the first opening and into the
chamber and (ii) to partially restrict flow of fluid through the
first opening and out the chamber; and a perforated piston
positioned within the chamber between the piston and the second end
of the chamber, wherein the perforated piston comprises a bottom
surface, a top surface, and one or more channels that allow fluid
to flow between the top surface and the bottom surface of the
perforated piston.
2. The wellbore tool of claim 1, the first fluid is pre-loaded
within the chamber.
3. The wellbore tool of claim 1, further comprising: a fluid
delivery system configured (i) to move the piston toward the first
end of the chamber in order to supply a volume of the second fluid
to the chamber through the second opening and (ii) to move the
piston towards the perforated piston and the second end of the
chamber to inject at least a portion of the first fluid through the
one or more channels of the perforated piston and into the second
fluid.
4. The wellbore tool of claim 1, wherein the second fluid is
compressible.
5. The wellbore tool of claim 1, wherein the second fluid is a
formation fluid that comprises a gas, a liquid, or some combination
thereof
6. The wellbore tool of claim 1, wherein the first fluid is a
reactant fluid.
7. The wellbore tool of claim 6, wherein the reactant fluid is
detects at least one of H.sub.2S, CO.sub.2, and Hg within the
second fluid.
8. The wellbore tool of claim 1, wherein the second fluid is a
formation fluid and the wellbore tool further comprises: a fluid
admitting assembly for extending into a formation and withdrawing
the formation fluid from the formation and into the wellbore
tool.
9. The wellbore tool of claim 1, further comprising: a fluid
analyzer configured to analyze a mixture of the first fluid and the
second fluid.
10. A downhole method for mixing a first fluid with a second fluid
within a chamber that comprises a piston, a perforated piston, a
first end with a first opening, and a second end with a second
opening, the method comprising: (a) introducing the second fluid
into the chamber; (b) introducing a third fluid into the first end
of the chamber through the first opening to move the piston towards
the perforated piston and the second end of the chamber so that the
piston injects at least a portion of the first fluid through the
one or more channels of the perforated piston and into the second
fluid; (c) removing the third fluid through the first opening using
a restrictor that partially restricts the flow of the third fluid
through the first opening to move the piston away from the
perforated piston and towards the first end of the chamber; and (d)
repeating processes (b) and (c) one or more times to form a mixture
between the first fluid and the second fluid.
11. The downhole method of claim 10, further comprising: (e) moving
the piston toward the second end of the chamber so that the fluid
mixture exits the chamber through the second opening.
12. The downhole method of claim 10, wherein the perforated piston
remains stationary during process (a) through process (d).
13. The downhole method of claim 10, wherein the first fluid is a
recant fluid and the second fluid is a formation fluid.
14. The downhole method of claim 10, wherein, at process (b), a
spray of droplets is formed when the first fluid is injected into
the second fluid.
15. The downhole method of claim 10, wherein the second fluid is a
formation fluid that comprises a gas, a liquid, or some combination
thereof
16. The downhole method of claim 10, the first fluid is pre-loaded
within the chamber.
17. The downhole method of claim 10, wherein process (a) through
process (d) are performed within a wellbore tool.
18. The downhole method of claim 17, further comprising:
withdrawing the formation fluid from a formation and into the
wellbore tool.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present application claims the benefit of U.S.
Provisional Application Ser. No. 61/868419 filed August 21, 2013,
which application is incorporated herein, in its entirety, by
reference.
TECHNICAL FIELD
[0002] This disclosure relates to mixing fluids and, more
particularly, to an apparatus for mixing fluids.
BACKGROUND
[0003] Mixing devices can be used to mix two different types of
fluids together downhole within a wellbore tool. More specifically,
a mixing device can be used to create a mixture between a reactant
and a formation fluid. The reactant can be used to detect a
particular chemical within the formation fluid. In one example, the
reactant is a fluid that is selected to detect hydrogen sulfide
(H.sub.2S) within the formation fluid by reacting with the hydrogen
sulfide and producing a detectable optical characteristic.
Accordingly, the mixing device can be used to generate a mixture by
thoroughly mixing the reactant with the formation fluid. This
mixture can then be analyzed optically to determine the presence of
a particular chemical within the formation fluid. To facilitate
this optical analysis, often the mixing device generates a
homogenous mixture between the reactant and the formation
fluid.
SUMMARY
[0004] Illustrative embodiments of the present disclosure are
directed to a wellbore tool for mixing a first fluid with a second
fluid. The wellbore tool includes a chamber with a first end, a
second end, a first opening at the first end, and a second opening
at the second end. The tool also includes a piston positioned
within the chamber. The piston generates a seal between the first
end and the second end of the chamber and is movable along the
chamber towards the first end and towards the second end of the
chamber. The tool further includes a restrictor positioned at the
first end of the chamber. The restrictor allows the flow of fluid
through the first opening and into the chamber and partially
restricts flow of fluid through the first opening and out the
chamber. Furthermore, the tool also includes a perforated piston
positioned within the chamber between the piston and the second end
of the chamber. The perforated piston includes a bottom surface, a
top surface, and one or more channels that allow fluid to flow
between the top surface and the bottom surface of the perforated
piston.
[0005] Various embodiments of the present disclosure are also
directed to a downhole method for mixing a first fluid with a
second fluid within a chamber. The chamber includes a piston, a
perforated piston, a first end with a first opening, and a second
end with a second opening. The method includes: [0006] (a)
introducing the second fluid into the chamber; [0007] (b)
introducing a third fluid into the first end of the chamber through
the first opening to move the piston towards the perforated piston
and the second end of the chamber so that the piston injects at
least a portion of the first fluid through the one or more channels
of the perforated piston and into the second fluid; [0008] (c)
removing the third fluid through the first opening using a
restrictor that partially restricts the flow of the third fluid
through the first opening to move the piston away from the
perforated piston and towards the first end of the chamber; and
[0009] (d) repeating processes (b) and (c) one or more times to
form a mixture between the first fluid and the second fluid.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Further features and advantages will become more readily
apparent from the following detailed description when taken in
conjunction with the accompanying drawings:
[0011] FIG. 1 shows a mixing apparatus in accordance with one
embodiment of the present disclosure;
[0012] FIGS. 2A and 2B show a restrictor in accordance with one
embodiment of the present disclosure;
[0013] FIGS. 3A-3E show a method for mixing fluids in accordance
with one embodiment of the present disclosure;
[0014] FIG. 4 shows a wireline logging system at a well site in
accordance with one embodiment of the present disclosure;
[0015] FIG. 5 shows a wireline tool in accordance with one
embodiment of the present disclosure; and
[0016] FIG. 6 shows the wireline tool of FIG. 5 in more detail.
DETAILED DESCRIPTION
[0017] Illustrative embodiments of the present disclosure are
directed to an apparatus for mixing a first fluid with a second
fluid. The second fluid can be a formation fluid that includes a
gas, a liquid, or both. The first fluid can be a reactant fluid
that reacts when mixed with the formation fluid to detect presence
of a particular chemical species within the formation fluid (e.g.,
hydrogen sulfide (H2S), carbon dioxide (CO2), and mercury (Hg)).
The mixing apparatus described herein includes a restrictor that
protects components of the mixing apparatus during operation.
Details of various embodiments are described below.
[0018] FIG. 1 shows an example of a mixing apparatus 100 for mixing
a first fluid with a second fluid. The mixing apparatus 100
includes a chamber 102 with a first end 104, a second end 106, an
opening 108 at the first end, and a second opening 110 at the
second end. The apparatus 100 also includes a piston 112 positioned
within the chamber. The piston 112 generates a seal between the
first end 104 and the second end 106 of the chamber and is movable
along the chamber towards the first end and towards the second end
of the chamber. The apparatus 100 further includes a restrictor 114
positioned at the first end of the chamber. The restrictor 114
allows the flow of fluid through the first opening 108 and into the
chamber 102 and partially restricts flow of fluid through the first
opening and out the chamber. Furthermore, the apparatus also
includes a perforated piston 118 positioned within the chamber 102
between the piston 112 and the second end 106 of the chamber. The
perforated piston 118 includes a bottom surface, a top surface, and
one or more channels that allow fluid to flow between the top
surface and the bottom surface of the perforated piston. In some
embodiments, the perforated piston 118 is affixed to walls of the
chamber and is stationary. In other embodiments, the perforated
piston 118 is movable along the chamber 102 towards the first end
and towards the second end of the chamber.
[0019] The mixing apparatus 100 also includes a fluid delivery
system for providing fluids to the chamber. In this embodiment, the
fluid delivery system include a valve 120 in fluid communication
with the second opening 110 and a pump 122 in fluid communication
with the first opening 108. The fluid delivery system moves the
piston 112 towards the first end 104 of the chamber 102 and thus
supplies a volume of the second fluid to the chamber through the
second opening. In some embodiments, the first fluid is pre-loaded
within the chamber 102. In other embodiments, the fluid delivery
system first introduces the first fluid into the chamber 102 and
then introduces the second fluid. The fluid delivery system also
moves the piston 112 towards the perforated piston 118 and the
second end 106 of the chamber to inject at least a portion of the
first fluid through the one or more channels of the perforated
piston 118 and into the second fluid.
[0020] Movement of the piston 112 can be accomplished by using the
pump 122 to introduce a third fluid (e.g., water) into the first
end 104 of the chamber. The third fluid is used to hydraulically
push on the piston 112 and move the piston towards the perforated
piston 118 and the second end 106 of the chamber. Also, the piston
112 can move back towards the first end 104 of the chamber by
removing the third fluid from the chamber 102 through the
restrictor 114. The third fluid can be removed using the pump 122
or by opening a valve (not shown) that creates a pressure
difference between the first end of the chamber 104 and the second
end of the chamber 106. For this reason, the first end 104 of the
chamber can be referred to as the "hydraulic end."
[0021] FIGS. 2A and 2B show the restrictor 114 in more detail. The
restrictor 114 allows flow of fluid in a first direction (into the
chamber 102) while partially restricting flow of fluid in an
opposite direction (out of the chamber), as compared to the first
direction. The restrictor 114 can also be referred to as a
"restrictor piston" because the restrictor can be part of a piston
that is positioned at the first end 104 of the chamber. In the
specific example shown in FIG. 2, the restrictor 114 includes two
passage ways. A first passage way 202 includes a small hole that
provides a flow path of high resistance from the chamber 102 to
first opening 108. A second passage way 204 includes a constriction
within the passage way. A ball with a diameter that is larger than
the constriction is positioned within the passage way 204. This
configuration can be referred to as a "ball check valve"
configuration. Other check valves can also be used within the
second passage way 204. For example, diaphragm check valves, swing
check valves, lift-check valves, in-line check valves, or duckbill
valves can also be used. When in an open position, the second
passage way 204 provides for greater fluid flow than the first
passage way 202.
[0022] FIGS. 2A and 2B show the two states of fluid flow through
the restrictor 114. In FIG. 2A, when the third fluid is flowing out
of the chamber 102 and through the first opening 108, the ball
lodges within the constriction and prevents the flow of fluid
through the second passage way 204. In this state, however, the
first high resistance passage way 202 remains open and the third
fluid flows through the first passage way. In FIG. 2B, when the
third fluid is flowing into the chamber 102 and through the first
opening 108, the ball is dislodged from the constriction and the
third fluid flows through the second passage way 204, while also
flowing through the first passage way 202. In this manner, the
restrictor 114 allows the flow of fluid into the chamber 102, while
partially restricting flow of fluid out the chamber.
[0023] In FIG. 1, the restrictor 114 and the first opening 108 are
separate components. The third fluid first flows through the
restrictor and then through the first opening 108, or vice versa.
In other embodiments, the restrictor 114 and the first opening 108
are the same components. The one or more passageways within the
restrictor 114 are the first opening 108.
[0024] FIGS. 3A-3E show a method for mixing a first fluid with a
second fluid using the mixing apparatus 100 shown in FIG. 1. In
FIG. 3A, the pump 122 draws the piston 112 down towards the first
end 104 of the chamber and, thereby, pulls the second fluid 300
into the chamber 112. As explained above, in some embodiments, the
first fluid (e.g., reactant) 302 is pre-loaded within the chamber
102 and there is no need for the pump to introduce the first fluid
into the chamber. In other embodiments, the pump 122 can be used to
introduce the first fluid into the chamber 102 and then introduce
the second fluid. Once the second fluid has been introduced, in
some embodiments, the valve 120 is closed.
[0025] In. FIGS. 3B and 3C, the pump 122 pushes up on the piston
112 by introducing a third fluid (e.g., water) 304 into the first
end 104 of chamber through the restrictor 114. Because the third
fluid 304 is flowing into the chamber 102, the restrictor 114
allows the fluid to flow through both passage ways 202, 204. When
the piston 112 moves, the piston forces the fluid (e.g., the first
fluid, the second fluid, or both) through the channels in the
perforated piston 118 and mixes the fluids to generate a fluid
mixture. By forcing the fluid through the perforated piston, a
spray effect is generated in the chamber 102. In particular, a
spray of droplets is formed when the first fluid is injected into
the second fluid. This spray effect increases the surface area of
the second fluid 300 coming in contact with the first fluid 302 for
more thorough mixing. The spray effect also provides agitation that
ensures that that the fluid mixture becomes homogenous.
[0026] In FIG. 3D, the chamber 102 is vented to lower from the
first end 104 of the chamber 102. For example, a valve (not shown)
is opened and this causes a large pressure drop during equalization
that is controlled by the restrictor 114 at the first end 104 of
the chamber. In this case, because the third fluid 304 is flowing
out of the chamber 102, the restrictor closes the second passage
way 204 and partially restricts the fluid flow. The third fluid 304
is directed to the first high resistance passage way 202 and is
slowly released. Thus, the restrictor 114 allows the piston 112 to
descend in a controlled manner by restricting the rapid exit of the
third fluid 304 from the chamber. The controlled descent of the
piston 102 prevents damage to the piston and prevents slippage in
the position of the perforated piston 118 (in embodiments where the
perforated piston is movable).
[0027] The processes in FIGS. 3B, 3C, and 3D can be repeated a
plurality of times to ensure a thorough mixing process (e.g., to
ensure that the fluid mixture becomes homogenous). Once the mixing
is complete, in some embodiments, the valve 120 is open.
[0028] In FIGS. 3A, 3B, 3C, and 3D, the perforated piston 118
remains stationary. Then, in FIG. 3E, the perforated piston 118 and
the piston 112 are pushed to the second end 106 of the chamber
using the pump 122 so that the fluid mixture is pushed out of the
chamber. The fluid mixture can then be analyzed optically by a
fluid analyzer, such as a spectroscopic cell. In some embodiments,
the fluid mixture can be analyzed optically by a fluid analyzer
while still within the chamber 102.
[0029] Illustrative embodiments of the present disclosure are
directed to oilfield applications. FIG. 4 shows one example of a
wireline logging system 400 at a well site. The wireline logging
system 400 can be used to mix formation fluids with reactant fluids
to detect particular chemical species within the formation fluids.
In this example, a wireline tool 402 is lowered into a wellbore 404
that traverses a formation 406 using a cable 408 and a winch 410.
The wireline tool 402 is lowered down into the wellbore 404 and
makes a measurement of the adjacent formation 406 at one or more
sampling locations along the wellbore 404. The data from these
measurements is communicated through the cable 408 to surface
equipment 412, which may include a computer system for storing and
processing the data obtained by the wireline tool 402. In this
case, the surface equipment 412 includes a truck that supports the
wireline tool 402. In another embodiment, however, the surface
equipment may be located within a cabin on an off-shore
platform.
[0030] FIG. 5 shows another view of the wireline tool 402. The
wireline tool 402 includes a selectively extendable fluid admitting
assembly (e.g., probe or packer) 502. This assembly 502 extends
into the formation 406 and withdraws formation fluid from the
formation 406 (e.g., samples the formation) and into the wireline
tool 402. The formation fluid flows through the assembly 502 and
into a main flow line 504 within a housing 506 of the tool 402. A
pump (not shown) can be used to withdraw the formation fluid from
the formation 406 and pass the fluid through the main flow line
504. The wireline tool 402 may also include a selectively
extendable anchoring member 508 that is arranged to press the probe
502 assembly against the formation 406. The wireline tool 402 also
includes a fluid analyzer module 510 for analyzing at least a
portion of the fluid in the flow line 504. The fluid analyzer 510
can be an optical or spectroscopic cell that is used to optically
measure and determine characteristics of the fluid within the flow
line 504 (e.g., optical density and/or composition).
[0031] FIG. 6 shows the wireline tool 402 in further detail. The
wireline tool 402 includes a mixing apparatus 100 for mixing a
first fluid with a second fluid, such as the one shown in FIG. 1.
The wireline tool 402 includes a fluid delivery system. The fluid
delivery system includes two lines 602, 604 that connect the main
flow line 504 to different ends 104, 106 of the mixing apparatus
100. The fluid delivery system also includes a pump 606, a top
valve 608, a bottom valve 610, a wellbore valve 612, and a second
end valve 614.
[0032] Operation of the fluid delivery system shown in FIG. 6 is
described with respect to FIGS. 3A-3E. The process described below
occurs downhole within a wellbore tool. In FIG. 3A, (i) top valve
608 and wellbore valve 612 are closed, (ii) second end valve 614
and bottom valve are open, and (iii) the pump 606 draws the piston
112 down towards the first end 104 of the chamber by pulling the
third fluid 304 (e.g., formation fluid and/or drilling mud) out of
the chamber 112. As the piston is drawn down, a sample of formation
fluid 300 enters the second end 106 of the chamber 102. As
explained above, in some embodiments, the reactant 302 is
pre-loaded within the chamber 102 and there is no need to introduce
the reactant into the chamber. In other embodiments, a separate
reactant bottle and valve assembly can be used to introduce the
reactant into the chamber 102 and then introduce the formation
fluid.
[0033] Once the formation fluid has been introduced, in. FIGS. 3B
and 3C, the second end valve 604 is closed and the pump 606 pushes
up on the piston 112 by reintroducing the third fluid 304 into the
first end 104 of the chamber through the restrictor 114. Because
the third fluid 304 is flowing into the chamber 102, the restrictor
114 allows the fluid to flow through both passage ways 202, 204.
When the piston 112 moves, the piston forces fluid (e.g., the
formation fluid, the reactant fluid, or both) through the channels
in the perforated piston 118 and mixes the fluids to generate a
fluid mixture. By forcing the fluid through the perforated piston,
a spray effect is generated in the chamber 102. In particular, a
spray of droplets is formed when the reactant fluid is injected
into the formation fluid. This spray effect increases the surface
area of the reactant fluid 300 coming in contact with the formation
fluid 302 for more thorough mixing. The spray effect also provides
agitation that ensures that that the fluid mixture becomes
homogenous.
[0034] In FIG. 3D, the chamber 102 is vented to lower pressure
(e.g., pressure within the wellbore 404) from the first end 104.
For example, the wellbore valve 612 is open to the wellbore
environment 404 while the top valve 608 is closed. The first end
104 of the chamber is thus exposed to wellbore pressure. This
causes a large pressure drop and pressure equalization that is
controlled by the restrictor 114 at the first end 104 of the
chamber. In this case, because the third fluid 304 is flowing out
of the chamber 102, the restrictor closes the second passage way
204 (as shown in FIGS. 2A and 2B) and partially restricts the fluid
flow. The third fluid 304 is directed to the first high resistance
passage way 202 and is slowly released. Thus, the restrictor 114
allows the piston 112 to descend in a controlled manner by
restricting the rapid exit of the third fluid 304 from the chamber.
The controlled descent of the piston 102 prevents damage to the
piston and prevents slippage in the position of the perforated
piston 118.
[0035] The processes in FIGS. 3B, 3C, and 3D can be repeated a
plurality of times to ensure thorough mixing between the formation
fluid and the reagent fluid (e.g., to ensure that the fluid mixture
becomes homogenous).
[0036] Once the mixing is complete, in FIG. 3E, the perforated
piston 118 and the piston 112 are pushed to the second end 106 of
the chamber by opening the bottom valve 510 while keeping the top
valve closed 608. In this manner, the fluid mixture is pushed into
the main flow line 504 where it can be analyzed using the fluid
analyzer 510. The fluid analyzer 510 can detect whether there has
been a reaction between the formation fluid and the reactant fluid.
For example, in some cases, the reactant fluid and a particular
chemical within the formation fluid can react and cause the fluid's
optical absorbance to increase. This increase in optical absorbance
in then detected by the fluid analyzer 510. The increase in
absorbance indicates the presence of the particular chemical within
the formation fluid.
[0037] The restrictor 114 allows the piston 112 to descend in a
controlled manner by restricting the rapid exit of the third fluid
304 from the chamber 102 through the first opening 108. Without the
restrictor 114, when the first end 104 of the chamber is opened to
the wellbore pressure, the pressure imbalance would force the third
fluid 304 out of the chamber, thereby, forcibly impacting the
piston 112 against the first end 104 of the chamber and also
potentially shifting the position of the perforated piston 118
within the chamber. Damage to the piston 112 and/or movement of the
perforated piston 118 may render the apparatus inoperable for
subsequent mixing cycles.
[0038] The descent of the piston 112 can also be controlled by the
pump 606. However, to repetitively perform the processes shown in
FIGS. 3B, 3C, and 3D, the pump 606 would switch flow direction many
times (e.g., into and out of the chamber), which is harsh on the
pump and may reduce the life of the pump or render the pump
inoperable. The restrictor 114 can be used to control the descent
of the piston 112 without using the pump 606 to reverse the flow of
fluid multiple times.
[0039] Further details regarding the chamber 102, the piston 112,
the perforated piston 118, the fluid delivery system, the reactant
fluids, and methods for mixing are described in U.S. Pat. No.
8,708,049, issued on Apr. 29, 2014, which is incorporated herein by
reference in its entirety.
[0040] In various embodiments, the first fluid or the second fluid
can be a liquid or a compressible fluid, such as a gas. The first
fluid or the second fluid can be a sample fluid such as a formation
fluid that is withdrawn from a subterranean formation. Also, the
first fluid or the second fluid can be a reactant fluid. The
reactant fluid can be used to detect various chemicals, such as
hydrogen sulfide (H2S), carbon dioxide (CO2), and mercury (Hg)
within another fluid. For example, the reactant fluid can use metal
ions to react with a particular chemical within a sample fluid,
such as a formation fluid. Further details regarding reactant
fluids are provided in U.S. Patent Application Publication
2012/0276648, published on Nov. 1, 2012, and U.S. Patent
Application Publication 2012/0149117, published Jun. 14, 2012. Both
of these applications are hereby incorporated herein by reference
in their entireties.
[0041] Illustrative embodiments of the present disclosure are not
limited to wireline logging operations, such as the ones shown in
FIGS. 4 and 5. For example, the embodiments described herein can
also be used with any suitable means of conveyance, such coiled
tubing or drill pipe. Furthermore, various embodiments of the
present disclosure may also be applied in logging-while-drilling
(LWD) operations, sampling-while-drilling operations,
measuring-while-drilling operations, production logging operations,
or any other operation where sampling of formation fluid is
performed.
[0042] Although several example embodiments have been described
above, those skilled in the art will readily appreciate that many
modifications are possible in the example embodiments without
materially departing from the scope of this disclosure.
Accordingly, such modifications are intended to be included within
the scope of this disclosure.
* * * * *