CN220769412U - Natural gas combined type drainage and extraction equipment - Google Patents
Natural gas combined type drainage and extraction equipment Download PDFInfo
- Publication number
- CN220769412U CN220769412U CN202322412749.4U CN202322412749U CN220769412U CN 220769412 U CN220769412 U CN 220769412U CN 202322412749 U CN202322412749 U CN 202322412749U CN 220769412 U CN220769412 U CN 220769412U
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- gas
- pipeline
- pump body
- natural gas
- liquid separator
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000003345 natural gas Substances 0.000 title claims abstract description 54
- 238000000605 extraction Methods 0.000 title claims description 13
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 239000007789 gas Substances 0.000 claims abstract description 77
- 239000004576 sand Substances 0.000 claims abstract description 52
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 49
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 241000191291 Abies alba Species 0.000 abstract description 18
- 238000000746 purification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model relates to the technical field of natural gas exploitation equipment, in particular to natural gas combined drainage and exploitation equipment which comprises a christmas tree and a sand removal pipeline, wherein a liquid outlet, a first gas injection port and a second gas injection port are formed in the top of the christmas tree, an oil pipe is arranged at the bottom of the christmas tree, a sleeve is sleeved outside the oil pipe, a gas lift valve is arranged in the oil pipe, the oil pipe is communicated with the liquid outlet through the inside of the christmas tree, the gas lift valve is communicated with the first gas injection port through the inside of the christmas tree, the sleeve is communicated with the second gas injection port through the inside of the christmas tree, the output end of the sand removal pipeline is connected with the first gas injection port, and the input end of the sand removal pipeline is connected with the liquid outlet.
Description
Technical Field
The utility model relates to the technical field of natural gas exploitation equipment, in particular to natural gas combined type drainage and exploitation equipment.
Background
The existing natural gas exploitation equipment adopts a gas lifting process to realize exploitation of underground natural gas, an oil pipe is inserted into a sleeve pipe, then the sleeve pipe and the oil pipe are penetrated into the ground together, sleeve gas is introduced into a gap between the sleeve pipe and the oil pipe, so that the pressure difference in the oil pipe is smaller than the pressure difference in the gap between the sleeve pipe and the oil pipe, and the mixed liquid containing the natural gas can be upwards exploited from the oil pipe.
At present, nitrogen is generally used as casing gas in the natural gas exploitation equipment, but after the nitrogen is used as the casing gas, small holes are required to be formed between the casing and the oil pipe so as to improve the exploitation effect, so that the exploited mixed liquid contains not only natural gas but also nitrogen, and the nitrogen is required to be separated in the process of purifying the natural gas, thereby increasing the purification cost of the natural gas and consuming manpower and material resources.
Therefore, it is necessary to provide a natural gas combined type extraction device so as to save manpower and material resources and reduce the purification cost of the natural gas.
Disclosure of Invention
The utility model aims to solve the problems of high purification cost and waste of manpower and material resources of natural gas in the existing natural gas exploitation equipment, and provides natural gas combined type drainage equipment.
The technical scheme of the utility model is as follows:
the natural gas combined type drainage and production equipment comprises a christmas tree and a sand removal pipeline, wherein a liquid outlet, a first gas injection port and a second gas injection port are formed in the top of the christmas tree, an oil pipe is installed at the bottom of the christmas tree, a sleeve is sleeved outside the oil pipe, a gas lift valve is installed in the oil pipe, the oil pipe is communicated with the liquid outlet through the inside of the christmas tree, the gas lift valve is communicated with the first gas injection port through the inside of the christmas tree, the sleeve is communicated with the second gas injection port through the inside of the christmas tree, the output end of the sand removal pipeline is connected with the first gas injection port, and the input end of the sand removal pipeline is connected with the liquid outlet;
the sand removal pipeline is provided with a first pump body and a gas-liquid separator, the first pump body is positioned between the gas-liquid separator and the first gas injection port, the top of the gas-liquid separator is connected with a station inlet pipeline, and the station inlet pipeline is provided with a gate valve.
Further, a second pump body and a pipeline sand remover are arranged on the sand removal pipeline, the pipeline sand remover is arranged between the liquid outlet and the gas-liquid separator, and the second pump body is arranged between the pipeline sand remover and the gas-liquid separator.
Further, be equipped with gas holder and surge tank on the degritting pipeline, the surge tank is installed between first pump body and first gas injection mouth, and the gas holder is installed between first pump body and vapour and liquid separator.
Further, a sedimentation tank is arranged on the sand removal pipeline, and the sedimentation tank is connected with the middle part of the gas-liquid separator.
Further, the sand remover also comprises a liquid delivery pipeline, a third pump body is arranged on the liquid delivery pipeline, one end of the liquid delivery pipeline is connected with the output end of the pipeline sand remover, and the other end of the liquid delivery pipeline is simultaneously connected with the middle part of the gas-liquid separator and the settling cask through a three-way valve.
Further, the first pump body adopts a pipeline booster pump.
Further, the second pump body is a reciprocating vacuum pump.
Further, the third pump body is a pipeline booster pump.
Further, the nitrogen gas pipeline is further included, one end of the nitrogen gas pipeline is communicated with the second gas injection port, the other end of the nitrogen gas pipeline is connected with the top of the gas-liquid separator, and the nitrogen gas pipeline is communicated with the nitrogen generator.
According to the natural gas combined type drainage and extraction equipment, the mixed liquid output by the liquid outlet can enter the gas-liquid separator through the sand removal pipeline to separate and remove sand, then the gas separated by the gas-liquid separator is sent into the gas lift valve through the first gas injection port by the first pump body, so that reinjection of natural gas is realized, and because the gas injected into the gas lift valve is the natural gas which is the same as the natural gas extracted from the mixed liquid, the gas from the inlet pipeline does not need to be separated from nitrogen and natural gas, and compared with the traditional technology, the technical scheme simplifies the purification step of the natural gas, and the extraction of the natural gas does not need to be performed by using nitrogen.
Drawings
Fig. 1 is a structural reference diagram of the present utility model.
Reference numerals: 1. a tree; 2. a sand removal pipeline; 4. a first gas injection port; 5. a second gas injection port; 6. an oil pipe; 7. a sleeve; 8. a gas lift valve; 9. a first pump body; 10. a gas-liquid separator; 11. an inbound pipeline; 12. a gate valve; 13. a second pump body; 14. a pipeline desander; 15. a liquid outlet; 17. a gas storage tank; 18. a surge tank; 19. a settling tank; 20. an infusion pipeline; 21. a third pump body; 22. a nitrogen pipeline; 23. a nitrogen making machine.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present utility model easy to understand, the present utility model will be further described with reference to the specific drawings.
Embodiment one:
as shown in fig. 1, a natural gas combined drainage and production device comprises a christmas tree 1 and a sand removal pipeline 2, wherein a liquid outlet 15, a first air injection port 4 and a second air injection port 5 are formed in the top of the christmas tree 1, an oil pipe 6 is arranged at the bottom of the christmas tree 1, a sleeve 7 is sleeved outside the oil pipe 6, a gas lift valve 8 is arranged in the oil pipe 6, the oil pipe 6 is communicated with the liquid outlet 15 through the inside of the christmas tree 1, the gas lift valve 8 is communicated with the first air injection port 4 through the inside of the christmas tree 1, the sleeve 7 is communicated with the second air injection port 5 through the inside of the christmas tree 1, the output end of the sand removal pipeline 2 is connected with the first air injection port 4, and the input end of the sand removal pipeline 2 is connected with the liquid outlet 15;
the sand removal pipeline 2 is provided with a first pump body 9 and a gas-liquid separator 10, the first pump body 9 is positioned between the gas-liquid separator 10 and the first gas injection port 4, the top of the gas-liquid separator 10 is connected with an inlet pipeline 11, and the inlet pipeline 11 is provided with a gate valve 12.
Preferably, the sand removing pipeline 2 is provided with a second pump body 13 and a pipeline sand remover 14, the pipeline sand remover 14 is arranged between the liquid outlet 15 and the gas-liquid separator 10, the second pump body 13 is arranged between the pipeline sand remover 14 and the gas-liquid separator 10, preferably, the sand removing pipeline 2 is provided with a gas storage tank 17 and a pressure stabilizing tank 18, the pressure stabilizing tank 18 is arranged between the first pump body 9 and the first gas injection port 4, the gas storage tank 17 is arranged between the first pump body 9 and the gas-liquid separator 10, preferably, the sand removing pipeline 2 is provided with a sedimentation tank 19, the sedimentation tank 19 is connected with the middle part of the gas-liquid separator 10, preferably, the sand removing pipeline further comprises a transfusion pipeline 20, a third pump body 21 is arranged on the transfusion pipeline 20, one end of the transfusion pipeline 20 is connected with the output end of the pipeline sand remover, the other end of the transfusion pipeline 20 is simultaneously connected with the middle part of the gas-liquid separator 10 and the sedimentation tank 19 through a three-way valve, preferably, the nitrogen pipeline 22 is communicated with the second gas injection port 5 at one end, the other end of the nitrogen pipeline 22 is connected with the top of the gas-liquid separator 10, and the nitrogen pipeline 22 is communicated with the nitrogen generator 23.
Preferably, the first pump body 9 adopts a pipeline booster pump.
Preferably, the second pump body 13 is a reciprocating vacuum pump.
Preferably, the third pump body 21 is a pipeline booster pump.
During operation, the pipeline sand remover 14 can separate fine sand in the mixed liquid extracted from the liquid outlet 15, plays a role in removing impurities, then the second pump body 13 can convey the separated liquid into the gas-liquid separator 10, separation of natural gas and liquid is achieved in the gas-liquid separator 10, natural gas is separated from the top of the gas-liquid separator 10, the liquid can be discharged into the settling tank 19 from the liquid outlet 15 of the gas-liquid separator 10, a small amount of fine sand and other impurities contained in the liquid can be settled at the bottom of the gas-liquid separator 10, finally the drain outlet at the bottom of the gas-liquid separator 10 is discharged, the liquid in the settling tank 19 is discharged after settling, the natural gas separated in the gas-liquid separator 10 can continue to enter the gas storage tank 17 along the sand removal pipeline 2, then is pumped into the pressure stabilizing tank 18 under the action of the second pump body 13, finally the natural gas is extracted into a gas well through the first injection 4, the gas lift valve 8 and the sleeve 7 are carried out, the following natural gas is increased, the natural gas is accumulated in the whole pipeline through the gas inlet valve, and the whole gas pressure can be increased along with the increase of the natural gas, and the natural gas accumulated in the gas inlet pipeline is more than the set pressure in the gas inlet pipeline 11.
The two pump bodies are arranged in the whole sand removing pipeline 2, the first pump body 9 and the second pump body 13 are used for reducing the working pressure of the pump body when only one pump body is arranged, the two pump bodies are used for increasing the pressure of natural gas in a well at the first gas injection port 4, the second pump body 13 at the pipeline sand remover 14 is used for pumping mixed liquid outwards, a pressure-pumping effect is achieved, the two pump bodies share the working pressure together, the service life of the pump bodies is prolonged, the gas injected into the gas lifting valve 8 is natural gas, the gas extracted from the gas lifting valve 8 is the same as the natural gas extracted from mixed liquid, therefore, the gas extracted from the gas inlet pipeline 11 is not required to be separated from nitrogen and natural gas, the pipeline sand remover 14 is directly communicated with the gas-liquid separator 10 and the sedimentation tank 19 through a three-way valve, the pipeline sand remover 14 is used for coping with the situation that the sand content of the mixed liquid is less, at the moment, the gas after the pipeline sand remover 14 is relatively clean, the gas does not need to enter the gas-liquid separator 10 through the second pump body 13, the spiral centrifugal force of the gas-liquid separator 10 is used, the gas-liquid separator 10 can be directly introduced into the gas separator 10 or the gas lifting valve 10 is communicated with the gas inlet pipeline 19, the gas inlet pipeline 11 is connected with the gas inlet pipeline 19, the gas separator is directly introduced into the sedimentation tank 19, and the gas separator is discharged from the gas inlet pipeline 19 through the gas inlet pipeline 19, and the gas separator is directly connected with the sedimentation tank 19.
The nitrogen pipeline 22 is a pipeline of a traditional gas production device, and under certain special conditions, such as the condition of insufficient natural gas supply, natural gas cannot be produced, at this time, the nitrogen generator 23 can be introduced into the gas-liquid separator 10 through the nitrogen pipeline 22, and can also be reinjected into the sleeve 7 of the gas well through the second gas injection port 5, the nitrogen in the gas-liquid separator 10 can enable the pressure in the sand removal pipeline 2 to be increased, and the sand removal pipeline 2 can be operated under the working of the first pump body 9 and the second pump body 13 to carry out gas production operation, which is equivalent to the use of the traditional production technology of natural gas production by using nitrogen, and the use of natural gas production technology is supplemented and perfected.
Specifically, the connection of each major part adopts sealing flange to connect in the whole equipment, and convenient dismantlement, and the junction of each major part all installs on-off valve and flowmeter, and on-off valve is like emptying valve, flashboard valve 12, relief valve, blowoff valve and relief valve etc. mainly is the break-make between the control pipeline, and this technique is the general knowledge in the art, and the quantity and the position of on-off valve installation can be decided by oneself according to this technical scheme and actual installation condition to the technical scheme, and this technical scheme just need not be repeated.
Compared with the prior art, the technical scheme simplifies the purification step of the natural gas, and nitrogen is not needed to be used for exploiting the natural gas.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Equivalent changes and modifications of the utility model are intended to fall within the scope of the present utility model.
Claims (9)
1. The utility model provides a natural gas combination formula arranges and adopts equipment which characterized in that: the oil pipe (6) is sleeved with a sleeve (7), a gas lift valve (8) is arranged in the oil pipe (6), the oil pipe (6) is communicated with the liquid outlet (15) through the inside of the oil production tree (1), the gas lift valve (8) is communicated with the first gas injection port (4) through the inside of the oil production tree (1), the sleeve (7) is communicated with the second gas injection port (5) through the inside of the oil production tree (1), the output end of the sand removal pipeline (2) is connected with the first gas injection port (4), and the input end of the sand removal pipeline (2) is connected with the liquid outlet (15);
install first pump body (9) and vapour and liquid separator (10) on sand removal pipeline (2), first pump body (9) are located between vapour and liquid separator (10) and first gas injection mouth (4), the top of vapour and liquid separator (10) is connected with inbound pipeline (11), is equipped with gate valve (12) on inbound pipeline (11).
2. The natural gas combined extraction apparatus of claim 1, wherein: the sand removal pipeline (2) is provided with a second pump body (13) and a pipeline sand remover (14), the pipeline sand remover (14) is arranged between the liquid outlet (15) and the gas-liquid separator (10), and the second pump body (13) is arranged between the pipeline sand remover (14) and the gas-liquid separator (10).
3. The natural gas combined extraction apparatus of claim 1, wherein: the sand removal pipeline (2) is provided with an air storage tank (17) and a pressure stabilizing tank (18), the pressure stabilizing tank (18) is arranged between the first pump body (9) and the first air injection port (4), and the air storage tank (17) is arranged between the first pump body (9) and the gas-liquid separator (10).
4. The natural gas combined extraction apparatus of claim 1, wherein: the sand removal pipeline (2) is provided with a settling tank (19), and the settling tank (19) is connected with the middle part of the gas-liquid separator (10).
5. The natural gas combined extraction apparatus of claim 2, wherein: the sand removing device further comprises a transfusion pipeline (20), a third pump body (21) is arranged on the transfusion pipeline (20), one end of the transfusion pipeline (20) is connected with the output end of the pipeline sand remover, and the other end of the transfusion pipeline (20) is simultaneously connected with the middle part of the gas-liquid separator (10) and the sedimentation tank (19) through a three-way valve.
6. The natural gas combined extraction apparatus of claim 1, wherein: the first pump body (9) adopts a pipeline booster pump.
7. The natural gas combined extraction apparatus of claim 2, wherein: the second pump body (13) is a reciprocating vacuum pump.
8. The natural gas combined extraction apparatus of claim 5, wherein: the third pump body (21) is a pipeline booster pump.
9. The natural gas combined extraction apparatus of claim 1, wherein: the nitrogen gas separator also comprises a nitrogen gas pipeline (22), one end of the nitrogen gas pipeline (22) is communicated with the second gas injection port (5), the other end of the nitrogen gas pipeline (22) is connected with the top of the gas-liquid separator (10), and the nitrogen generator (23) is communicated with the nitrogen gas pipeline (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322412749.4U CN220769412U (en) | 2023-09-06 | 2023-09-06 | Natural gas combined type drainage and extraction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322412749.4U CN220769412U (en) | 2023-09-06 | 2023-09-06 | Natural gas combined type drainage and extraction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769412U true CN220769412U (en) | 2024-04-12 |
Family
ID=90601987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322412749.4U Active CN220769412U (en) | 2023-09-06 | 2023-09-06 | Natural gas combined type drainage and extraction equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769412U (en) |
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2023
- 2023-09-06 CN CN202322412749.4U patent/CN220769412U/en active Active
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