CN214830158U - Oil associated gas recovery device - Google Patents
Oil associated gas recovery device Download PDFInfo
- Publication number
- CN214830158U CN214830158U CN202120839025.6U CN202120839025U CN214830158U CN 214830158 U CN214830158 U CN 214830158U CN 202120839025 U CN202120839025 U CN 202120839025U CN 214830158 U CN214830158 U CN 214830158U
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- Prior art keywords
- gas
- oil
- outlet
- liquid separator
- communicated
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- 238000011084 recovery Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 239000004576 sand Substances 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000009833 condensation Methods 0.000 claims abstract description 10
- 230000005494 condensation Effects 0.000 claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 46
- 229910021529 ammonia Inorganic materials 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 111
- 239000003921 oil Substances 0.000 description 53
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000010779 crude oil Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001070941 Castanea Species 0.000 description 1
- 235000014036 Castanea Nutrition 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an oil associated gas recovery unit, which relates to the technical field of oil field equipment, and comprises a gas transmission pipe and a gas transmission pump on the gas transmission pipe, wherein the gas transmission pipe is communicated with a plurality of gas transmission branch pipes which are communicated with a cyclone desander, a vibrating screen is arranged below a sand discharge port at the bottom of the cyclone desander, an outlet at the top of the cyclone desander is communicated with a recovery unit for recovering associated gas, the recovery unit comprises a first gas-liquid separator connected with the outlet of the cyclone desander, the gas outlet of the first gas-liquid separator is communicated with a condensation unit, the liquid outlet of the condensation unit is communicated with a liquid storage tank, the liquid outlet of the first gas-liquid separator is communicated with an oil storage tank, the utility model has simple structure and convenient use, the oil field associated gas is recycled, the sand removing effect on solid impurities such as sand grains in oil gas is good, and the service life of the oil gas conveying pipe is prolonged.
Description
Technical Field
The utility model relates to an oil field equipment technical field.
Background
Along with the increasing demand for natural gas resources in life, the public and the society pay more and more attention to environmental protection, so that the efficient utilization of natural gas is paid more attention to in the natural gas utilization process, and the environmental protection is paid more attention to, and the oilfield associated gas is an important component of the natural gas, so that the treatment and application of the oilfield associated gas have important effects on saving the natural gas resources and improving the utilization efficiency of the natural gas resources, at present, an oil extraction system of an oilfield mostly adopts a water-doped heat tracing oil pumping well for oil extraction, when the bottom pressure is reduced to be lower than the saturation pressure of crude oil, the associated gas is separated from the crude oil, one part of the separated associated gas enters an oil pumping cavity along with liquid flow to be extracted as clean and efficient energy fuel, and the other part of the separated associated gas rises and accumulates in an oil sleeve annular space to cause the pressure of a well head to rise, if the sleeve pressure is too high, the sinking degree is too low and the phenomenon of oil pumping chestnut air lock occurs, so the associated gas in the casing is directly discharged into the atmosphere, the resource waste is caused, and the air pollution is caused.
To above-mentioned technical problem, chinese patent that publication number is CN208292953U discloses an oil associated gas recovery unit, its technical essential lies in, including the install bin, the gas-supply pipe, transfer line and condensing box, liquid collecting bottle and condensing box welding are in fixed incasement, the runner that is used for recovery unit to remove is installed to fixed bottom of the case portion, the leak protection stopper that prevents the associated gas and spill is equipped with on the fixed case right side, gas-supply pipe one end integrated into one piece is equipped with the suction disc that is used for collecting the oil associated gas, the gas-supply pipe other end is connected in the air inlet of condensing box, the condensing box inboard is connected the liquid collecting bottle that is used for the liquid collection through the transfer line, inner bag and upper cover integrated into one piece design, upper cover and protective housing threaded connection are in the same place, be equipped with the condenser pipe that is used for the associated gas condensation around the inner bag, upper cover top portion is equipped with the connector that is used for absorbing into liquid.
According to the technical scheme, the problem of recovering the associated gas is solved, but the crude oil conveyed by the oil well contains solid impurities such as sand grains and the like, so that the gas pipeline is easily abraded, blocked and the like, and the recovery efficiency of the associated gas is reduced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an oil associated gas recovery unit retrieves oil field associated gas, avoids extravagant, and is simultaneously effectual to the degritting of solid impurity such as sand grain in the oil gas, has improved oil gas conveying pipe's life.
The utility model discloses a can realize through following technical scheme: the utility model provides a petroleum associated gas recovery unit, includes the gas transmission pump on gas-supply pipe and the gas-supply pipe, the gas-supply pipe intercommunication has a plurality of gas transmission branch pipe, gas transmission branch pipe intercommunication has the whirl desander, the below of the row's of whirl desander bottom sand discharge mouth is equipped with the shale shaker, the export intercommunication at whirl desander top has carries out the recovery unit of retrieving to the associated gas.
Through the above scheme, when carrying out oil associated gas recovery, start the gas transmission pump, associated gas, crude oil and sand grain pass through the gas-supply pipe and during gas transmission branch pipe gets into the whirl desander, the overflow of low density gets into the recovery unit through the export at whirl desander top to retrieve the associated gas in the overflow, the underflow of high density sieves in getting into the shale shaker through the sand discharge mouth, the utility model discloses simple structure, convenient to use retrieve oil field associated gas, and good to the desanding effect of solid impurity such as sand grain in the oil gas, improved oil gas conveying pipe's life.
Further, the recovery unit include with the first vapour and liquid separator that the export of whirl desander links to each other, first vapour and liquid separator's gas outlet intercommunication has the condensation unit, the liquid outlet intercommunication of condensation unit has the liquid storage pot, first vapour and liquid separator's liquid outlet intercommunication has the oil storage tank.
Through above-mentioned scheme, the recovery unit is retrieved the associated gas in the oil gas, and the fluid after cyclone sand separator filters gets into first vapour and liquid separator, and crude oil and water after the separation get into the oil storage tank through the liquid outlet of first vapour and liquid separator and collect, and the associated gas gets into condensing unit through the gas outlet of first vapour and liquid separator and condenses, and the associated gas after the condensation gets into and retrieves in the liquid storage tank.
Further, the condensation unit is including setting up subaerial base, be equipped with the support on the base perpendicularly, be equipped with the compressor on the support, the compressor is connected with the ammonia cooler, the ammonia cooler is connected with the condenser through the choke valve, the import of condenser with first vapour and liquid separator's gas outlet links to each other, the exit linkage of condenser has second vapour and liquid separator, second vapour and liquid separator's liquid outlet with the liquid storage pot links to each other, second vapour and liquid separator's gas outlet with the ammonia cooler links to each other.
Through above-mentioned scheme, the compressor sends into the ammonia cooler after the compression and cools off, and the ammonia after the cooling gets into the condenser and carries out the heat exchange with the associated gas behind the first vapour and liquid separator for gaseous associated gas condenses into liquid, through the separation back of second vapour and liquid separator, and liquid associated gas gets into and collects the recovery in the liquid storage pot, and the ammonia cools off again in getting into the ammonia cooler.
Furthermore, a vertical plate is fixedly connected to the lower portion of the cyclone desander, an electric telescopic rod is perpendicularly arranged on one side of the sand discharge port of the cyclone desander, and the other end of the electric telescopic rod is connected with a baffle for blocking the sand discharge port of the cyclone desander.
Through the scheme, the electric telescopic rod stretches and retracts regularly, so that the baffle can regularly discharge sand and stop the material to the sand discharge port at the bottom of the cyclone desander, and a large amount of oil gas is prevented from being discharged from the sand discharge port along with sand grains.
Furthermore, the discharge port of the vibrating screen is communicated with a sand storage tank, the bottom of the vibrating screen is communicated with an oil-gas tank, the oil-gas tank is connected with the first gas-liquid separator through a pipeline, and a pump is arranged on the pipeline.
Through the scheme, although the electric telescopic rod drives the baffle plate to stop and discharge sand at regular time from the sand discharge port, part of oil gas still falls into the vibrating screen along with sand grains through the sand discharge port, and after the sand grains are screened by the vibrating screen, the sand grains enter the sand storage tank through the discharge port of the vibrating screen to be collected, and oil and water flow into the oil and gas tank through the bottom of the vibrating screen, and then the pump is started to enter the first gas-liquid separator through the pipeline to be separated.
Furthermore, a filter screen is arranged in the cyclone desander and close to the outlet.
Through the scheme, the overflow at the top of the cyclone desander contains small-particle sand grains, and the filter screen filters the sand grains, so that solid impurities are filtered more thoroughly.
Furthermore, the vibrating screen is closed, and a sand discharge port of the cyclone desander is connected with a feed port of the vibrating screen.
Through above-mentioned scheme, the shale shaker is closed, avoids discharging in the air along with the associated gas that large granule sand flowed into on the shale shaker, causes the wasting of resources.
The utility model has the advantages as follows:
1. when the oil field gas is recovered, the gas transmission pump is started, the oil field gas, the crude oil and the sand grains enter the cyclone desander through the gas transmission pipe and the gas transmission branch pipe, the low-density overflow enters the recovery unit through the outlet at the top of the cyclone desander, so that the oil field gas in the overflow is recovered, the high-density underflow enters the vibrating screen through the sand discharge port for screening, the utility model discloses simple structure and convenient use recover the oil field gas, and have good desanding effect on solid impurities such as the sand grains in the oil gas, and improve the service life of the oil gas conveying pipe;
2. the recovery unit is retrieved the associated gas in the oil gas, and the fluid after cyclone sand separator filters gets into first vapour and liquid separator, and crude oil and water after the separation get into the oil storage tank through the liquid outlet of first vapour and liquid separator and collect, and the associated gas gets into condensation unit through the gas outlet of first vapour and liquid separator and condenses and retrieves in the associated gas gets into the liquid storage tank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
reference numerals: 11. a gas delivery pipe; 12. a gas delivery branch pipe; 13. a cyclone desander; 14. vibrating screen; 15. a recovery unit; 16. a first gas-liquid separator; 17. a condensing unit; 18. a liquid storage tank; 19. an oil storage tank; 20. a base; 21. a support; 22. a compressor; 23. an ammonia cooler; 24. a throttle valve; 25. a condenser; 26. a second gas-liquid separator; 27. a vertical plate; 28. an electric telescopic rod; 29. a baffle plate; 30. a sand storage tank; 31. an oil-gas tank; 32. a pump; 33. filtering with a screen; 34. a pipeline; 35. air delivery pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Referring to fig. 1, the petroleum associated gas recovery device comprises a gas pipe 11 and a gas transmission pump 35 on the gas pipe 11, the gas pipe 11 is communicated with a plurality of gas transmission branch pipes 12, the gas transmission branch pipes 12 are communicated with a cyclone desander 13, a vibrating screen 14 is arranged below a sand discharge port at the bottom of the cyclone desander 13, a filter screen 33 is arranged in the cyclone desander 13 close to an outlet at the top, an outlet at the top of the cyclone desander 13 is communicated with a recovery unit 15 for recovering the associated gas, when the petroleum associated gas is recovered, the gas transmission pump 35 is started, the oil gas and sand particles enter the cyclone desander 13 through the gas transmission pipe 11 and the gas transmission branch pipe 12, after small-particle solid impurities in the low-density overflow are filtered by the filter screen 33, the oil gas enters the recovery unit 15 through an outlet at the top of the cyclone desander 13, the recovery unit 15 recovers the associated gas in the overflow, and the high-density underflow enters the vibrating screen 14 through the sand discharge port for screening.
Referring to fig. 1, a petroleum associated gas recovery device, a recovery unit 15 includes a first gas-liquid separator 16 connected with an outlet of a cyclone sand remover 13, a liquid outlet of the first gas-liquid separator 16 is communicated with an oil storage tank 19, a gas outlet of the first gas-liquid separator 16 is communicated with a condensing unit 17, the condensing unit 17 includes a base 20 arranged on the ground, a support 21 is vertically arranged on the base 20, a compressor 22 is arranged on the support 21, the compressor 22 is connected with an ammonia cooler 23, the ammonia cooler 23 is connected with a condenser 25 through a throttle valve 24, an inlet of the condenser 25 is connected with a gas outlet of the first gas-liquid separator 16, an outlet of the condenser 25 is connected with a second gas-liquid separator 26, a liquid outlet of the second gas-liquid separator 26 is connected with the liquid storage tank 18, a gas outlet of the second gas-liquid separator 26 is connected with the ammonia cooler 23, the recovery unit 15 recovers associated gas in oil gas, the fluid filtered by the cyclone desander 13 enters the first gas-liquid separator 16, the separated crude oil and water enter the oil storage tank 19 through the liquid outlet of the first gas-liquid separator 16 for collection, the associated gas enters the condenser 25 through the gas outlet of the first gas-liquid separator 16, and then exchanges heat with the ammonia cooled by the compressor 22 and the ammonia cooler 23 in the condenser 25, so that the gaseous associated gas is condensed into liquid, the liquid associated gas enters the liquid storage tank 18 for recovery after being separated by the second gas-liquid separator 26, and the ammonia enters the ammonia cooler 23 for cooling again.
Referring to fig. 1, a vertical plate 27 is fixedly connected below a cyclone desander 13, an electric telescopic rod 28 is vertically arranged on one side of the vertical plate 27 facing a sand discharge port of the cyclone desander 13, the other end of the electric telescopic rod 28 is connected with a baffle 29 for blocking the sand discharge port of the cyclone desander 13, the electric telescopic rod 28 is stretched and contracted at regular time to enable the baffle 29 to perform regular sand discharge and blocking on the cyclone desander 13, a discharge port of a vibrating screen 14 is communicated with a sand storage tank 30, the bottom of the vibrating screen 14 is communicated with an oil gas tank 31, the oil gas tank 31 is connected with a first gas-liquid separator 16 through a pipeline 34, a pump 32 is arranged on the pipeline 34, after being screened by the vibrating screen 14, solid impurities such as large-particle sand grains enter the sand storage tank 30 through the discharge port of the vibrating screen 14 to be recovered, oil gas and water flow into the oil gas tank 31 through the bottom of the vibrating screen 14, the pump 32 is opened, and the oil gas enters the first gas-liquid separator 16 through the pipeline 34 to be separated, the vibrating screen 14 is closed, and the sand discharge port of the cyclone desander 13 is connected with the feed inlet of the vibrating screen 14, so that the problem that associated gas flowing into the vibrating screen 14 along with large-particle sand is discharged into the air to cause resource waste is avoided.
The utility model discloses a theory of operation is: when recovering petroleum associated gas, starting the gas transmission pump 35, allowing oil gas and sand grains to enter the cyclone desander 13 through the gas transmission pipe 11 and the gas transmission branch pipe 12, allowing low-density overflow to enter the first gas-liquid separator 16 from an outlet at the top of the cyclone desander 13 through the filter screen 33, allowing high-density underflow to enter the vibrating screen 14 through a sand discharge port, allowing sand grains and a small amount of oil gas to pass through the vibrating screen 14 for screening, allowing sand grains to enter the sand storage tank 30 through a discharge port for collection, allowing oil and water to flow into the oil gas tank 31 through the bottom of the vibrating screen 14, starting the pump 32, allowing oil gas to enter the first gas-liquid separator 16 through the pipeline 34 for separation, allowing separated crude oil and water to enter the oil storage tank 19, allowing the compressor 22 to send compressed ammonia into the ammonia cooler 23 for cooling, allowing the cooled ammonia to enter the condenser 25 for heat exchange with the associated gas separated from the first gas-liquid separator, so as to condense the gaseous associated gas into a liquid state, after the separation through second vapour and liquid separator 26, collect in liquid associated gas gets into liquid storage pot 18 and retrieve, cool off again in ammonia entering ammonia cooler 23, the utility model discloses simple structure, convenient to use retrieve oil field associated gas, and to the desanding of solid impurity such as the sand grain in the oil gas effectual, the associated gas that has improved oil gas conveying pipe's life grain sand grain falls into on shale shaker 14 discharges in the air.
Claims (7)
1. The utility model provides an oil associated gas recovery unit, its characterized in that, air transmission pump (35) on air-supply pipe (11) and air-supply pipe (11), air-supply pipe (11) intercommunication has a plurality of air transmission branch pipe (12), air transmission branch pipe (12) intercommunication has whirl desander (13), the below of the sand discharge mouth of whirl desander (13) bottom is equipped with shale shaker (14), the export intercommunication at whirl desander (13) top has carries out recovery unit (15) of retrieving to the associated gas.
2. The associated gas recovery device of claim 1, wherein the recovery unit (15) comprises a first gas-liquid separator (16) connected with the outlet of the cyclone sand separator (13), the gas outlet of the first gas-liquid separator (16) is communicated with a condensation unit (17), the liquid outlet of the condensation unit (17) is communicated with a liquid storage tank (18), and the liquid outlet of the first gas-liquid separator (16) is communicated with a liquid storage tank (19).
3. The associated gas recovery device of claim 2, wherein the condensing unit (17) comprises a base (20) disposed on the ground, a support (21) is vertically disposed on the base (20), a compressor (22) is disposed on the support (21), the compressor (22) is connected with an ammonia cooler (23), the ammonia cooler (23) is connected with a condenser (25) through a throttle valve (24), an inlet of the condenser (25) is connected with an air outlet of the first gas-liquid separator (16), an outlet of the condenser (25) is connected with a second gas-liquid separator (26), an air outlet of the second gas-liquid separator (26) is connected with the liquid storage tank (18), and an air outlet of the second gas-liquid separator (26) is connected with the ammonia cooler (23).
4. The oil associated gas recovery device according to claim 1, wherein a vertical plate (27) is fixedly connected below the cyclone desander (13), an electric telescopic rod (28) is vertically arranged on one side of the vertical plate (27) facing the sand discharge port of the cyclone desander (13), and the other end of the electric telescopic rod (28) is connected with a baffle (29) for blocking the sand discharge port of the cyclone desander (13).
5. The oil associated gas recovery device according to claim 2, wherein a sand storage tank (30) is communicated with a discharge port of the vibrating screen (14), an oil and gas tank (31) is communicated with the bottom of the vibrating screen (14), the oil and gas tank (31) is connected with the first gas-liquid separator (16) through a pipeline (34), and a pump (32) is arranged on the pipeline (34).
6. The oil-associated gas recovery device according to claim 1, wherein a screen (33) is provided in the cyclone desander (13) near the outlet.
7. The oil-associated gas recovery device according to claim 1, wherein the vibrating screen (14) is closed, and the sand discharge port of the cyclone sand remover (13) is connected with the feed port of the vibrating screen (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839025.6U CN214830158U (en) | 2021-04-22 | 2021-04-22 | Oil associated gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120839025.6U CN214830158U (en) | 2021-04-22 | 2021-04-22 | Oil associated gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214830158U true CN214830158U (en) | 2021-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120839025.6U Expired - Fee Related CN214830158U (en) | 2021-04-22 | 2021-04-22 | Oil associated gas recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN214830158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684944A (en) * | 2022-04-01 | 2022-07-01 | 陕西延长石油（集团）有限责任公司 | Geothermal development utilizes desanding gas removal equipment |
| CN114737945A (en) * | 2022-04-29 | 2022-07-12 | 四川凌耘建科技有限公司 | Efficient sand removal separation metering integrated sledge adaptive to variable working conditions |
| CN116358974A (en) * | 2023-05-31 | 2023-06-30 | 北京大学 | System and method for separating, purifying and collecting natural gas and mercury in oil-gas well |
-
2021
- 2021-04-22 CN CN202120839025.6U patent/CN214830158U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114684944A (en) * | 2022-04-01 | 2022-07-01 | 陕西延长石油（集团）有限责任公司 | Geothermal development utilizes desanding gas removal equipment |
| CN114737945A (en) * | 2022-04-29 | 2022-07-12 | 四川凌耘建科技有限公司 | Efficient sand removal separation metering integrated sledge adaptive to variable working conditions |
| CN114737945B (en) * | 2022-04-29 | 2024-01-12 | 四川凌耘建科技有限公司 | High-efficient degritting separation measurement integration sledge of adaptation variable operating mode |
| CN116358974A (en) * | 2023-05-31 | 2023-06-30 | 北京大学 | System and method for separating, purifying and collecting natural gas and mercury in oil-gas well |
| CN116358974B (en) * | 2023-05-31 | 2023-09-22 | 北京大学 | System and method for separating, purifying and collecting natural gas and mercury in oil-gas well |
| CN116358974B9 (en) * | 2023-05-31 | 2023-11-03 | 北京大学 | System and method for separating, purifying and collecting natural gas and mercury in oil-gas well |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |