CN109630096A - A kind of cooling device and method of the heat generating components heat dissipation for downhole instrument - Google Patents
A kind of cooling device and method of the heat generating components heat dissipation for downhole instrument Download PDFInfo
- Publication number
- CN109630096A CN109630096A CN201811477584.6A CN201811477584A CN109630096A CN 109630096 A CN109630096 A CN 109630096A CN 201811477584 A CN201811477584 A CN 201811477584A CN 109630096 A CN109630096 A CN 109630096A
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- Prior art keywords
- pipeline
- downhole instrument
- chassis
- component
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title abstract description 10
- 230000017525 heat dissipation Effects 0.000 title description 7
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 239000000523 sample Substances 0.000 claims abstract description 35
- 206010037660 Pyrexia Diseases 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000006071 cream Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 13
- 238000005755 formation reaction Methods 0.000 description 13
- 238000005086 pumping Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/088—Well testing, e.g. testing for reservoir productivity or formation parameters combined with sampling
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of cooling device that the heat generating components for downhole instrument radiates and methods, including the chassis being made from a material that be thermally conductive being fixed on by connecting elements in the shell of downhole instrument, the fever electric component being mounted on chassis, and extend longitudinally through the pipeline of the cylindrical channel longitudinally opened up on chassis and connecting elements being made from a material that be thermally conductive, the outer wall of pipeline is in contact with the inner surface of cylindrical channel, the end of the pipeline is connected to the probe on the outside of the outer casing bottom that downhole instrument is arranged in, the pump being connected on pipeline between probe and chassis in downhole instrument shell, the top of pipeline extends to the outlet above the shell of downhole instrument.By the pump in downhole instrument shell from withdrawn fluid in stratum into pipeline, carry out heat exchange with chassis when fluid passes through chassis in pipeline, achieve the purpose that carry out cooling to fever electric component.
Description
Technical field
The present invention relates to downhole tool cooling field, the cooling of especially a kind of heat generating components heat dissipation for downhole instrument
Device and method.
Background technique
In drill-well operation or after drill-well operation, the different instrument such as tool string or downhole instrument can be used and go to comment
Estimate stratum or executes other tasks.The electronics of these instruments or movable part branch distribute heat.It is this to dissipate in some cases
Heat may result in the decline of instrument detection performance or detection failure.When using instrument in high temperature well, such case can be aggravated.
It would therefore be highly desirable to study the cooling device and method of the heat generating components heat dissipation for downhole instrument.
Summary of the invention
The invention aims to solve the deficiencies in the prior art, a kind of heating part for downhole instrument is provided
The cooling device and method of part heat dissipation carry out heat exchange heat dissipation to heat generating components using the fluid in the pipeline in downhole tool
It is cooling.
In order to achieve the above objectives, the present invention is implemented according to following technical scheme:
A kind of cooling device that the heat generating components for downhole instrument radiates, including downhole instrument is fixed on by connecting elements
The chassis being made from a material that be thermally conductive, the fever electric component being mounted on chassis in the shell of device, and extend longitudinally through
The pipeline of the cylindrical channel longitudinally opened up on chassis and connecting elements being made from a material that be thermally conductive, the outer wall and cylinder of pipeline
The inner surface in channel is in contact, and the end of the pipeline is connected to the probe on the outside of the outer casing bottom that downhole instrument is arranged in, and visits
The pump being connected in downhole instrument shell on pipeline between needle and chassis, the top of pipeline extend to the outer of downhole instrument
Outlet above shell.
Further, the connecting elements is disc, the internal diameter of outer diameter and the shell for being equal to downhole instrument, the connection
Component is set to the inner surface of the shell of downhole instrument.
Further, the chassis includes the first component being made from a material that be thermally conductive and second component, first component and second
Component is fixed together by clamp device, and the opposite side of first component and second component is offered along longitudinally asymmetric through
The first arc groove and the second arc groove of one component, the first arc groove and the second arc groove composition are for installing pipeline
Perforative cylindrical channel.
Further, heat-conducting cream is filled between the pipeline and cylindrical channel.
Further, more than one is arranged in the connecting elements.
In addition, the present invention also provides a kind of cooling means that the heat generating components for downhole instrument radiates, use is above-mentioned
The cooling device that heat generating components for downhole instrument radiates is cooling to fever electric component, the specific steps are as follows: passes through underground
Pump in tool housing, into pipeline, carries out heat exchange with chassis when fluid passes through chassis in pipeline from withdrawn fluid in stratum,
Achieve the purpose that carry out cooling to fever electric component.
Compared with prior art, structure of the invention structure is simple, can be directly arranged in downhole tool shell, pass through well
Pump in lower tool housing, into pipeline, carries out hot friendship with chassis when fluid passes through chassis in pipeline from withdrawn fluid in stratum
It changes, achievees the purpose that carry out cooling to fever electric component, to the cooling of the heating electric appliance component in downhole tool
Speed is fast, and effect is good, convenient for promoting the use of.
Detailed description of the invention
Fig. 1 is the cooling device that the heat generating components for downhole instrument in the embodiment of the present invention in downhole instrument radiates
Schematic diagram.
Fig. 2 is the cross-sectional view for Fig. 1.
Fig. 3 is for the schematic diagram on the chassis of another embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with drawings and examples, to this
Invention is described in further detail.Described herein the specific embodiments are only for explaining the present invention, is not used to limit
Invention.
As shown in Figure 1, being the formation fluid downhole sampling instrument 50 from the underground equipment of 10 sample fluid of subsurface formations
Illustrative embodiments, hereinafter referred to downhole instrument 50.Downhole instrument 50 is transported to subsurface formations 10 in pit shaft 11, and
And formation fluid is pumped from stratum 10 during subsequent cleaning operation, the sample of formation fluid is collected in sample container 74 later
This.
In the example shown, downhole instrument 50 is conveyed in pit shaft 11 by cable 52, is exactly put from wellbore surface 12
The multicore cable that lower capstan winch 54 is wound.It well site 52 can be with field coupling to well site ground installation 56, so as in 50 He of downhole instrument
Various control signals and record information are transmitted between well site ground installation 56.
Downhole instrument 50 includes probe module 58, pumps out module 60 and sample block 62.However, other arrangements and/or mould
Block also may be constructed downhole instrument 50.
Probe module 58 includes fluid communications, such as probe 64, with Fluid Sealing and otherwise engagement stratum 10,
For fluid to be transmitted in downhole instrument 50 from stratum 10.Probe 64 and/or other fluid communication can be from downhole instruments 50
It extends to and is contacted with the side wall of pit shaft 11.However, probe module 58 can also be by one or more mechanical devices 66 and barrel phase
Top.Mechanical device 66 includes piston and/or other devices, to improve sealing engagement, and improves stratum 10 and probe 64 with this
Between fluid communication.As the substituted or supplemented of probe 64, probe module 58 may include one or more packer components (figure
In do not show), mechanical and/or hydraulic buckling or inflatable to contact the side wall of pit shaft 11 is used so that a part of pit shaft 11 be isolated
In sampling.Probe module 58 can also include electronic device, battery, sensor and/or hydraulic unit, can be used for operating probe 64
With mechanical device 66.
Pumping out module 60 includes pump 68, can produce pressure difference using pump 68, probe 64 by the pressure difference suck formation fluid and
Fluid is pushed, the pipeline 70 of downhole instrument 50 is passed through.Pump 68 is generated by electromechanics, and hydraulic and/or other kinds of pump forms fluid,
Fluid comes out from downhole instrument 50 from probe module 58 to sample block 62, later and enters pit shaft 11 via outlet 76.Pump 68
The piston for the ball-screw driving for being connected to gear-box and motor can be made to do displacement unit (DU) operation.It can be by being located at pump
Out the other component in module 60 or by individual electricity generation module (being not drawn into figure) to pump 68 power.
Pump 68 moves fluid through heat generating components 320, and heat generating components 320 can drive or control pump 68.Heat generating components 320
It can be maintained in the shell 61 for pumping out module 60 and being connected to chassis 330, chassis 330 passes through one or more attachmentes
350 are fixed to shell 61.During sampling operation, pump 68 keeps formation fluid mobile towards sample module 62 by pipeline 70.
The another part for pumping out module 60 and/or downhole instrument 50 may also include fluid analyzer 72.Fluid analyzer 72
It may include spectrometer, the characteristic of formation fluid can be measured when formation fluid flows through pipeline 70.Fluid analyzer 72 can position
In the lower part (as shown in the figure) or upper part of pump 68.Fluid analyzer 72 can sense the optical density (OD) of formation fluid.It is logical
The data for crossing the collection of fluid analyzer 72 can be used for controlling downhole instrument 50.For example, downhole tool 50 can be to pump out or " clear
Cleaning formation fluid is presented until formation fluid flows through pipeline 70 (and returning to pit shaft 11 via outlet 76) in reason " mode work
The feature of sample consists essentially of the natively laminar flow with a small amount of drilling fluid and/or other pollutants like when pumping fluid
Body, characteristic of fluid can be detected by the other sensors of fluid analyzer 72 and/or downhole instrument 50 or otherwise be determined.
Then can start to sample, by control valve 63 the fluid in pipeline is redirected to one or more sample containers 74,
Rather than by exporting 76 for flow re-direction to pit shaft.
Sample block 62 may include one or more sample containers 74, for collecting the sample of formation fluid.It can be primary
One ground filling sample container 74, and once fill sample container 74, corresponding valve can be moved to closed position with
Sealed sample container 74.
As an embodiment of the present invention, as shown in Fig. 2, the present embodiment provides a kind of heating parts for downhole instrument
Part heat dissipation cooling device, including by connecting elements 350 be fixed in the shell 61 of downhole instrument 50 by Heat Conduction Material system
At chassis 330, the fever electric component 320 that is mounted on chassis 330, and extend longitudinally through chassis 330 and connection structure
The pipeline 70 of the cylindrical channel 332 longitudinally opened up on part 350 being made from a material that be thermally conductive, the outer wall and cylinder of pipeline 70 are logical
The inner surface in road 332 is in contact, the probe of the end of the pipeline 70 and 61 bottom outside of shell that downhole instrument 50 is arranged in
64 are connected to, and are connected with the pump 68 in downhole instrument shell, the top of pipeline 70 on the pipeline 70 between probe 64 and chassis 330
The outlet that end extends to the top of shell 61 of downhole instrument 50 enters pit shaft 11, fluid from probe module 58 to sample block 62,
It is come out later from downhole instrument 50 and enters pit shaft 11 via outlet 76, fluid is in pipeline 70 by chassis in flow process
When 330 heat that the fever electric component 320 on chassis 330 generates can be taken to pit shaft 11 with the fluid in pipeline 70.
Pipeline 70 shown in Fig. 1 is described in Fig. 2 by twin pipeline 370, and each twin pipeline 370 extends longitudinally through chassis
330。
Shell 61 can be it is one or more formed by steel and/or other metal or metal alloy it is substantially cylindrical
Component.Connecting elements 350 is approximately disc shaped, outer diameter be substantially equal to about or equal to shell 61 internal diameter, and pass through spiral shell
Line fastener and/or other clamp device bondings/interference/are frictionally secured to the inner surface of shell 61.Connecting elements 350 is the bottom of along
330 longitudinal register of disk is located at various locations.Chassis 330 can be fixed in shell 61 by multiple connecting elements 350.
As shown in Fig. 2, the chassis 330 of the present embodiment can also be made of steel, INCONEL and/or other Heat Conduction Materials, so as to
Heat is transmitted to twin pipeline 370 from heat generating components 320.For example, chassis 330 is by the thermal conductivity at least 100W/M/ ° K
Material is constituted.As twin pipeline 370, the thermal conductivity on chassis 330 is higher, and the heat transfer rate to twin pipeline 370 is bigger, two-tube
Rate of heat dispation when fluid in line 370 flows is bigger.Chassis 330 includes that cylindrical channel 332 and its reception are corresponding two-tube
Line 370.Therefore, the cylindrical outer surface of each twin pipeline 370 can be outer with the cylinder of a corresponding cylindrical channel 332
Surface contact.Heat-conducting cream (not shown) can be used between every twin pipeline 370 and respective cylindrical channel 332, with side
It helps and eliminates air gap and increase the heat transfer between chassis 330 and twin pipeline 370.Chassis 330 can also include one or more attached
Add channel 334, stays open for wiring cable etc..
As described above, fever electric component 320 may include the chip for driving the various parts of downhole instrument 50, electrically
Device and other circuits, such as pump 68.If not using the cooling system of the present embodiment, the electric component 320 that generates heat be can produce
It is enough the heat for causing to overheat and damage.Fever electric component 320 can be flush-mounted into chassis 330, so that electrical in fever
Gap is not present between component 320 and chassis 330.It can also be between fever electric component 320 and chassis 330 using thermally conductive
Cream.
The heat generated by fever electric component 320 is transmitted to twin pipeline 370 through chassis 330.When fluid be pumped it is double
Pipeline 370 and when entering pit shaft 11 via outlet 76, the fluid in twin pipeline 370 is distributed to be conducted from the electric component 320 of fever
Heat.For example, if pumping 68 using one kilowatt of (kW) power with the operated in flow rate of about 10 cubic centimetres/second (cc/sec), then
The heat of the generation of heat generating components 320 about 50W.In existing design, heat generating components is attached to radiator, and radiator is by heat
It is transmitted to the shell of downhole tool, so that heat dissipates in the stagnant fluid in pit shaft 11, leads to the temperature in downhole tool
It increases, about 37 DEG C, higher than the temperature of the wellbore fluids of stagnation.However, using the cooling system of the present embodiment, temperature increases can be with
It is limited in about 18 DEG C.Higher than the temperature of the wellbore fluids of stagnation.In general, can be with by the fluids of the high flow velocities of twin pipeline 370
Dissipate more heats.
As another the present embodiment of the invention, as shown in figure 3, chassis 330 includes first component 331 and second component
333, each component is formed by Heat Conduction Material, and first component 331 and second component 33 are fixed together by clamp device, and first
The opposite side of component 331 and second component 333 is along longitudinally asymmetric the first arc groove offered through first component 331
335 and second arc groove 337, because using twin pipeline 370, so the first arc groove 335 and the second arc groove 337
It is two, two the first arc grooves 335 and two the second arc groove 337 compositions are perforative for installing twin pipeline 370
Cylindrical channel 332.For clarity, twin pipeline 370 (one of pipeline is removed from the view in Fig. 3) is kept at
In cylindrical channel 332.
For example, after twin pipeline 370 is fixed between the first arc groove 335 and the second arc groove 337, first
By threaded fastener, adhesive and/or other clamp devices are fixed to one another for component 331 and second component 333.Therefore, every
Twin pipeline 370 is substantially contacted with a surface in the first arc groove 335 and the second arc groove 337.Each two-tube
Heat-conducting cream (not shown) can be used between line 370 and the first arc groove 335 and the second arc groove 337, to help to eliminate
Air gap simultaneously increases the heat transfer between first component 331 and second component 333 and twin pipeline 370.In 335 He of the first arc groove
Between second arc groove 337 with except, matching surface 336 and 338 is substantially equal, therefore substantially surface connects
Touching, but heat-conducting cream also can be used.First component 331 can also include one or more additional channels 334, and staying open can
For guiding cable etc..
Fever electrical component 320 may be mounted on chassis component 331, as shown in Figure 3.However, one or more fevers
Electric component 320 can also be Chong Die with chassis component 333, to provide for the additional path towards 370 heat transfer of twin pipeline.
Fever electric component 320 can be flush-mounted into first component 331 and second component 333, so that in fever 320 He of electric component
Gap is not present between first component 331 and second component 333.In fever electrical component 320 and first component 331 and the second structure
Heat-conducting cream also can be used between part 333.
Above-mentioned example is usually directed to the chassis component using Heat Conduction Material, and is maintained at the similar cylindrical of chassis component
Pipeline in surface.However, pipeline can be not kept at the similar cylinder of substructure member in the other methods of this content
In surface, such as wherein pipeline is maintained in the surface of chassis component, is made of plane or non-cylindrical part.
When cooling to the heating electric appliance component in downhole instrument using above-mentioned cooling device, fever electric component is fixed on
On chassis 330, pump 68 is opened, by pumping 68 from withdrawn fluid in stratum into pipeline 70 or twin pipeline 370, pipeline 70 or two-tube
Heat exchange is carried out with chassis 330 when fluid passes through chassis 330 in line 370, reaches and cooling is carried out to fever electric component
Purpose.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (6)
1. a kind of cooling device that the heat generating components for downhole instrument radiates, which is characterized in that including solid by connecting elements
The chassis being made from a material that be thermally conductive being scheduled in the shell of downhole instrument, the fever electric component being mounted on chassis, and it is vertical
To the pipeline being made from a material that be thermally conductive for extending through the cylindrical channel longitudinally opened up on chassis and connecting elements, pipeline it is outer
Wall is in contact with the inner surface of cylindrical channel, the end of the pipeline and the spy being arranged on the outside of the outer casing bottom of downhole instrument
Needle is connected to, and is connected with the pump in downhole instrument shell on the pipeline between probe and chassis, the top of pipeline extends to well
Outlet above the shell of lower instrument.
2. the cooling device that the heat generating components according to claim 1 for downhole instrument radiates, it is characterised in that: described
Connecting elements is disc, and the internal diameter of outer diameter and the shell for being equal to downhole instrument, the connecting elements is set to downhole instrument
Shell inner surface.
3. the cooling device that the heat generating components according to claim 1 for downhole instrument radiates, it is characterised in that: described
Chassis includes the first component being made from a material that be thermally conductive and second component, and first component and second component are fixed by clamp device
Together, the opposite side of first component and second component is along longitudinally asymmetric the first arc groove offered through first component
With the second arc groove, the first arc groove and the second arc groove composition are for installing the perforative cylindrical channel of pipeline.
4. the cooling device that the heat generating components according to claim 2 for downhole instrument radiates, it is characterised in that: described
Heat-conducting cream is filled between pipeline and cylindrical channel.
5. the cooling device that the heat generating components according to claim 2 for downhole instrument radiates, it is characterised in that: described
More than one is arranged in connecting elements.
6. a kind of cooling means that the heat generating components for downhole instrument radiates, which is characterized in that using such as claim 1-5 institute
The cooling device that the heat generating components for downhole instrument stated radiates is cooling to fever electric component, the specific steps are as follows: passes through
Pump in downhole instrument shell, into pipeline, carries out hot friendship with chassis when fluid passes through chassis in pipeline from withdrawn fluid in stratum
It changes, achievees the purpose that carry out cooling to fever electric component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477584.6A CN109630096A (en) | 2018-12-05 | 2018-12-05 | A kind of cooling device and method of the heat generating components heat dissipation for downhole instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477584.6A CN109630096A (en) | 2018-12-05 | 2018-12-05 | A kind of cooling device and method of the heat generating components heat dissipation for downhole instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630096A true CN109630096A (en) | 2019-04-16 |
Family
ID=66071197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477584.6A Pending CN109630096A (en) | 2018-12-05 | 2018-12-05 | A kind of cooling device and method of the heat generating components heat dissipation for downhole instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630096A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060108116A1 (en) * | 2004-11-19 | 2006-05-25 | Halliburton Energy Services, Inc. | Method and apparatus for cooling flasked instrument assembles |
| US20110079391A1 (en) * | 2009-10-06 | 2011-04-07 | Sylvain Bedouet | Cooling apparatus and methods for use with downhole tools |
| US20170152735A1 (en) * | 2015-12-01 | 2017-06-01 | Schlumberger Technology Corporation | Thermal Management via Flowline Heat Dissipation |
| WO2018094368A1 (en) * | 2016-11-21 | 2018-05-24 | Schroit Sam | System for the operational and performance efficiency improvement of wireline tractors |
-
2018
- 2018-12-05 CN CN201811477584.6A patent/CN109630096A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060108116A1 (en) * | 2004-11-19 | 2006-05-25 | Halliburton Energy Services, Inc. | Method and apparatus for cooling flasked instrument assembles |
| US20110079391A1 (en) * | 2009-10-06 | 2011-04-07 | Sylvain Bedouet | Cooling apparatus and methods for use with downhole tools |
| US20170152735A1 (en) * | 2015-12-01 | 2017-06-01 | Schlumberger Technology Corporation | Thermal Management via Flowline Heat Dissipation |
| WO2018094368A1 (en) * | 2016-11-21 | 2018-05-24 | Schroit Sam | System for the operational and performance efficiency improvement of wireline tractors |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |