CN116981229A - Active cooling system and method for underground measurement while drilling instrument circuit - Google Patents
Active cooling system and method for underground measurement while drilling instrument circuit Download PDFInfo
- Publication number
- CN116981229A CN116981229A CN202311000719.0A CN202311000719A CN116981229A CN 116981229 A CN116981229 A CN 116981229A CN 202311000719 A CN202311000719 A CN 202311000719A CN 116981229 A CN116981229 A CN 116981229A
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- Prior art keywords
- turbine
- cavity
- instrument circuit
- active cooling
- cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 63
- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 102
- 230000006835 compression Effects 0.000 claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 23
- 239000002002 slurry Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 32
- 238000013461 design Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses an active cooling system of an underground measurement while drilling instrument circuit, which comprises a body, and is characterized in that a turbine mechanism cavity, a cooling cavity and a compressor cavity are arranged in the body; a turbine mechanism is arranged in the turbine mechanism cavity; the cooling cavity is used for placing a measuring instrument circuit; a reciprocating compression mechanism is arranged in the compressor cavity; the cam mechanism and the vortex tube mechanism are also arranged in the body, and the cam mechanism is respectively connected with the turbine mechanism and the reciprocating compression mechanism. The application further provides an active cooling method of the underground measurement while drilling instrument circuit. The application converts hydraulic energy into mechanical energy through the turbine mechanism, combines the cam mechanism to realize the compression of gas, generates high-pressure gas, and the high-pressure gas generates cold air and hot air through the vortex tube, and the cold air enters the electronic circuit unit to realize active cooling. The application can ensure the cooling effect, and has simple structure and high reliability.
Description
Technical Field
The application relates to a system for actively cooling a downhole measurement while drilling instrument based on a vortex tube principle and a method based on the system.
Background
In the field of drilling engineering in the exploration and development of oil and gas, in order to reduce risks in drilling engineering and to find out geological information downhole, it is necessary to acquire geological parameters and engineering parameters and technological parameters downhole as much as possible. Measurement while drilling instruments MWD and LWD can measure this information. The tools typically have information monitoring devices and circuit components disposed therein that generate heat during operation. Meanwhile, in the ultra-deep well drilling field, the high temperature in the well can also influence the ultra-deep well.
The Chinese patent application with publication number of CN115696840A describes a cooling system for the internal circuit of a drilling tool, which has a complex scheme and lower reliability under severe underground working conditions. Chinese patent application publication No. CN111212548A describes a magnetic pole driving cooling system and method for a while-drilling instrument circuit system, which is designed by the reverse stirling cycle principle, however, the common disadvantage of the reverse stirling cooling device is weak power, low working efficiency and poor cooling effect.
Disclosure of Invention
The application aims to solve the technical problems that: the existing cooling system and method for the underground measurement while drilling instrument circuit in the field of drilling engineering are poor in effect, complex in structural design and low in reliability.
In order to solve the problems, the technical scheme of the application is to provide an active cooling system of a downhole measurement while drilling instrument circuit, which comprises a body, wherein the upper end of the body is a mud inlet, and the lower end of the body is a mud outlet; the turbine mechanism cavity is communicated with the slurry inlet and the slurry outlet, and a turbine mechanism is arranged in the turbine mechanism cavity; the cooling cavity is used for placing a measuring instrument circuit; a reciprocating compression mechanism is arranged in the compressor cavity; the cam mechanism and the vortex tube mechanism are arranged in the body, and the cam mechanism is respectively connected with the turbine mechanism and the reciprocating compression mechanism; the mud flowing through the cavity of the turbine mechanism drives the turbine mechanism, and the turbine mechanism drives the reciprocating compression mechanism to reciprocate through the cam mechanism, so that gas flowing into the cavity of the compressor is compressed, and high-pressure compressed gas is periodically generated; the high-pressure compressed gas output by the reciprocating compression mechanism passes through the vortex tube mechanism to generate cold air and hot air, wherein the cold air flows into the cooling cavity to cool a measuring instrument circuit placed in the cooling cavity.
Preferably, the body is further provided with an anti-holding-down flow passage for releasing the gas pressure in the cavity of the turbine mechanism, and the anti-holding-down flow passage is communicated with the slurry inlet and the slurry outlet.
Preferably, the hot gas generated by the vortex tube mechanism is cooled to be consistent with the outside through a hot end opening circulating pipeline and then flows into the cavity of the compressor.
Preferably, the cold air flowing into the cooling chamber is returned to the compressor chamber after cooling the measuring instrument circuit.
Preferably, the turbine mechanism comprises a turbine group penetrating through a turbine shaft, and turbine bearings are sleeved at two ends of the turbine shaft; the turbine bearing at one end of the turbine shaft is fixed on the turbine cover plate, and the turbine cover plate is fixed in the turbine mechanism cavity.
Preferably, the cam mechanism includes a cam penetrating the turbine shaft, and the reciprocating compression mechanism is coupled with the cam.
Preferably, the reciprocating compression mechanism comprises a piston assembly, one end of the piston assembly is connected with the cam, and the other end of the piston assembly is provided with a pressure balance block; the piston assembly is sleeved with a spring.
The application also provides an active cooling method of a downhole measurement while drilling instrument circuit, which is characterized by comprising the following steps of:
after the mud flowing into the body through the mud inlet flows through the turbine mechanism cavity, the mud flows out from the mud outlet; when the slurry flows through the cavity of the turbine mechanism, the turbine mechanism is driven to reciprocate by the turbine mechanism through the cam mechanism, so that the gas flowing into the cavity of the compressor is compressed, and high-pressure compressed gas is periodically generated; the high-pressure compressed gas output by the reciprocating compression mechanism passes through the vortex tube mechanism to generate cold air and hot air, wherein the cold air flows into the cooling cavity to cool a measuring instrument circuit placed in the cooling cavity.
Preferably, hot gas generated by the vortex tube mechanism flows into the compressor cavity after being cooled to be consistent with the outside through a hot end opening circulating pipeline; the cold air flowing into the cooling chamber is returned to the compressor chamber after cooling the measuring instrument circuit.
The application converts hydraulic energy into mechanical energy through the turbine mechanism, combines the cam mechanism to realize the compression of gas, generates high-pressure gas, and the high-pressure gas generates cold air and hot air through the vortex tube, and the cold air enters the electronic circuit unit to realize active cooling. Compared with the prior art, the cooling device can ensure the cooling effect, and is simple in structure and high in reliability.
Drawings
FIG. 1 is a perspective view of an active cooling system side view of a downhole measurement-while-drilling instrument circuit in accordance with an embodiment of the disclosure;
FIG. 2 is a cross-sectional view taken along the direction F-F in FIG. 1;
FIG. 3 is a sectional view taken along E-E in FIG. 1;
FIG. 4 is a D-D sectional view of FIG. 1;
FIG. 5 is a perspective view of an active cooling system of a downhole measurement-while-drilling instrument circuit in a top view as disclosed in the embodiments;
FIG. 6 is a B-B cross-sectional view of FIG. 5;
FIG. 7 is a cross-sectional view taken along A-A in FIG. 5;
FIG. 8 is a cross-sectional view taken along the direction C-C in FIG. 5;
FIG. 9 illustrates the design of the hot gas cooling cycle in this embodiment;
fig. 10 illustrates the design of the cold air circulation in this embodiment.
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
It should be noted that the present application is not related to the downhole instrument functional circuit design technology, and the present application primarily provides active cooling services for any downhole circuit.
The embodiment discloses an initiative cooling system of a downhole measurement while drilling instrument circuit based on a vortex tube principle, which comprises a body 1, wherein the upper end of the body 1 is a mud inlet 21, and the lower end of the body is a mud outlet 21. A turbine mechanism cavity, a cooling cavity and a compressor cavity are arranged in the body 1. The turbine mechanism cavity communicates with the mud inlet 21 and the mud outlet 21, in which turbine mechanisms are disposed. The measuring instrument circuit is placed in a cooling chamber which is closed by a detachable cooling chamber cover plate 9. In this embodiment, the cooling chamber is closed by the slurry inlet 21 operating the cooling chamber cover 9. A reciprocating compression mechanism is arranged in the compressor cavity.
The body 1 is also provided with a cam mechanism and a vortex tube mechanism. The mud flowing through the cavity of the turbine mechanism drives the turbine mechanism, and the turbine mechanism drives the reciprocating compression mechanism to reciprocate through the cam mechanism, so that the gas flowing into the cavity of the compressor is compressed, and the high-pressure compressed gas is periodically generated. The high-pressure compressed gas output by the reciprocating compression mechanism passes through the vortex tube mechanism to generate cold air and hot air, wherein the cold air flows into the cooling cavity to cool a measuring instrument circuit placed in the cooling cavity.
In this embodiment, an anti-holding-back pressure flow channel 23 is further disposed in the body 1, and the anti-holding-back pressure flow channel 23 is also communicated with the mud inlet 21 and the mud outlet 21. The slurry flowing into the slurry inlet 21 flows through the turbine mechanism cavity and the pressure-holding prevention flow passage 23, and then flows out from the slurry outlet 21. The purpose of setting up the passageway 23 that prevents to hold back pressure is in order to prevent the gas pressure in the turbine mechanism cavity too big, releases the gas pressure in the turbine mechanism cavity through the passageway 23 that holds back pressure.
In this embodiment, the turbine mechanism includes a turbine group 5 penetrating through a turbine shaft 4, and both ends of the turbine shaft 4 are fixed to a turbine bearing 3 so that the turbine shaft 4 can freely rotate. The turbine bearing 3 at one end of the turbine shaft 4 is mounted on the turbine cover plate 2, and the turbine cover plate 2 is fixed in the turbine mechanism cavity.
In this embodiment, the cam mechanism includes a cam 7 penetrating through the turbine shaft 4, and a first bushing 6 and a second bushing 8 are respectively disposed on two sides of the cam 7, and the cam 7 is separated from the turbine group 5 and the turbine bearing 3 at the other end of the turbine shaft 4 by the first bushing 6 and the second bushing 8.
The slurry flowing through the turbine mechanism cavity converts hydraulic energy into rotary mechanical energy of the turbine shaft 4 through the impact turbine group 5, so as to drive the cam 7 to rotate. The rotating cam 7 drives the reciprocating compression mechanism to reciprocate.
In this embodiment, the reciprocating compression mechanism includes a piston assembly 11, one end of the piston assembly 11 is coupled to the cam 7, and the other end is fixed with a pressure balance 13. The piston assembly 11 is sheathed with a spring 12. The rotating cam 7 can reciprocate the piston assembly 11 to compress the gas flowing into the compressor chamber.
The high pressure gas outlet of the compressor chamber is connected to the gas inlet of the vortex tube mechanism via a one-way valve 16, and the cold gas outlet of the vortex tube mechanism is connected to the cooling chamber, in this embodiment, the hot gas outlet of the vortex tube mechanism is connected to the gas inlet of the compressor chamber via a hot port circulation line 20. The vortex tube mechanism is a device commonly used by those skilled in the art, and in this embodiment, the vortex tube mechanism includes a vortex tube 17 with a vortex tube cold and hot separation plug 18. The cool air outlet of the vortex tube 17 communicates with the cooling chamber via a vortex tube cold end outlet line 19. The hot gas outlet of the vortex tube 17 is communicated with the gas inlet of the compressor cavity through the hot port circulation pipeline 20, and in this embodiment, when the hot gas flow of the vortex tube 17 passes through the hot port circulation pipeline 20, the hot gas flow can realize sufficient heat exchange with the outside through the design of the path of the hot port circulation pipeline 20, so that the temperature of the hot gas flow is reduced to be consistent with the outside and then enters the compressor cavity. In this embodiment, the cooling chamber is communicated with the gas inlet of the compressor cavity via a cold end circulation pipeline, a second check valve 10 is arranged on the cold end circulation pipeline, and after the cooling of the measuring instrument circuit is completed by the cool air of the vortex tube 17, the warmed cool air flows back into the compressor cavity again through the cold end circulation pipeline.
In this embodiment, the hot-side circulation line 20 and the cold-side circulation line are designed as shown in fig. 9 and 10, and it should be noted that those skilled in the art, having read the disclosure of the present application, may design other forms of hot-side circulation line 20 and cold-side circulation line based on the teachings of the present application.
In order to form the hot port circulation line 20 and the cold port circulation line in the body 1, through holes are formed in the surface of the body 1, which are closed by the covers 14, 15.
In this embodiment, the circulating gas is nitrogen, which is injected into the shop ahead of time before the tool is run into the well.
Claims (9)
1. An active cooling system of an underground measurement while drilling instrument circuit comprises a body, wherein the upper end of the body is a mud inlet, and the lower end of the body is a mud outlet; the turbine mechanism cavity is communicated with the slurry inlet and the slurry outlet, and a turbine mechanism is arranged in the turbine mechanism cavity; the cooling cavity is used for placing a measuring instrument circuit; a reciprocating compression mechanism is arranged in the compressor cavity; the cam mechanism and the vortex tube mechanism are arranged in the body, and the cam mechanism is respectively connected with the turbine mechanism and the reciprocating compression mechanism; the mud flowing through the cavity of the turbine mechanism drives the turbine mechanism, and the turbine mechanism drives the reciprocating compression mechanism to reciprocate through the cam mechanism, so that gas flowing into the cavity of the compressor is compressed, and high-pressure compressed gas is periodically generated; the high-pressure compressed gas output by the reciprocating compression mechanism passes through the vortex tube mechanism to generate cold air and hot air, wherein the cold air flows into the cooling cavity to cool a measuring instrument circuit placed in the cooling cavity.
2. The active cooling system of the downhole measurement while drilling instrument circuit according to claim 1, wherein the body is further provided with an anti-holding pressure runner for releasing gas pressure in the turbine mechanism cavity, and the anti-holding pressure runner is communicated with the mud inlet and the mud outlet.
3. The active cooling system of a downhole measurement while drilling circuit of claim 1, wherein hot gas generated by the vortex tube mechanism is cooled to a temperature consistent with the outside world via a hot-port circulation line and then flows into the compressor cavity.
4. The active cooling system of a downhole measurement-while-drilling instrument circuit of claim 1, wherein cold gas flowing into the cooling chamber returns to the compressor chamber after cooling the instrument circuit.
5. The active cooling system of the downhole measurement while drilling instrument circuit according to claim 1, wherein the turbine mechanism comprises a turbine group penetrating through a turbine shaft, and turbine bearings are sleeved at two ends of the turbine shaft; the turbine bearing at one end of the turbine shaft is fixed on the turbine cover plate, and the turbine cover plate is fixed in the turbine mechanism cavity.
6. The active cooling system of the downhole measurement-while-drilling instrument circuit of claim 5, wherein the cam mechanism comprises a cam threaded on the turbine shaft, the reciprocating compression mechanism being coupled to the cam.
7. The active cooling system of the downhole measurement while drilling instrument circuit of claim 6, wherein the reciprocating compression mechanism comprises a piston assembly, one end of the piston assembly is connected with the cam, and the other end of the piston assembly is provided with a pressure balance block; the piston assembly is sleeved with a spring.
8. An active cooling method of a downhole measurement while drilling instrument circuit, which is characterized by adopting the active cooling system as claimed in claim 1, comprising the following steps:
after the mud flowing into the body through the mud inlet flows through the turbine mechanism cavity, the mud flows out from the mud outlet; when the slurry flows through the cavity of the turbine mechanism, the turbine mechanism is driven to reciprocate by the turbine mechanism through the cam mechanism, so that the gas flowing into the cavity of the compressor is compressed, and high-pressure compressed gas is periodically generated; the high-pressure compressed gas output by the reciprocating compression mechanism passes through the vortex tube mechanism to generate cold air and hot air, wherein the cold air flows into the cooling cavity to cool a measuring instrument circuit placed in the cooling cavity.
9. The method of active cooling of a downhole measurement while drilling circuit of claim 1, wherein hot gas generated by the vortex tube mechanism is cooled to be consistent with the outside through a hot-end circulation pipeline and then flows into the compressor cavity; the cold air flowing into the cooling chamber is returned to the compressor chamber after cooling the measuring instrument circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311000719.0A CN116981229A (en) | 2023-08-09 | 2023-08-09 | Active cooling system and method for underground measurement while drilling instrument circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311000719.0A CN116981229A (en) | 2023-08-09 | 2023-08-09 | Active cooling system and method for underground measurement while drilling instrument circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116981229A true CN116981229A (en) | 2023-10-31 |
Family
ID=88481240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311000719.0A Pending CN116981229A (en) | 2023-08-09 | 2023-08-09 | Active cooling system and method for underground measurement while drilling instrument circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116981229A (en) |
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2023
- 2023-08-09 CN CN202311000719.0A patent/CN116981229A/en active Pending
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