CN212272135U - Wellhead gas recovery device and wellhead gas recovery system - Google Patents
Wellhead gas recovery device and wellhead gas recovery system Download PDFInfo
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- CN212272135U CN212272135U CN202020698214.1U CN202020698214U CN212272135U CN 212272135 U CN212272135 U CN 212272135U CN 202020698214 U CN202020698214 U CN 202020698214U CN 212272135 U CN212272135 U CN 212272135U
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Abstract
The utility model relates to a natural gas equipment technical field especially relates to a well head gas recovery unit and well head gas recovery system. The utility model provides a well head gas recovery device, which comprises a compressor unit, a dehydration device, a gas filling column, a gas inlet pipe and a control device; the air inlet pipe is provided with an air inlet and an air outlet, and the compressor unit and the air filling column are sequentially arranged along the direction close to the air outlet; the well head gas can be dehydrated and purified by a dehydrating device, enters a compressor unit for pressurization, and then can be used for aerating a tank car or an automobile by an aerating column. The control device controls the pressure, temperature, voltage, current and other relevant parameters of the compressor set, the dehydration device and the gas column, and is used for displaying, starting, alarming, stopping and the like of the whole device. The utility model provides a well head gas recovery unit can realize the production of remote gas well and low yield gas well effectively, can reduce manufacturing cost effectively simultaneously.
Description
Technical Field
The utility model relates to a natural gas equipment technical field especially relates to a well head gas recovery unit and well head gas recovery system.
Background
At present, in the oil and gas production process, the problem that the reserves natural gas of remote gas wells, low-yield gas wells and gas wells without a matched pipe network can not be recycled or are difficult to recycle often occurs, and the specific problems are as follows: the flow resistance of pipelines along the remote gas well is large and the pressure loss is large because the remote gas well is far away from the centralized pressurization station, so that the stored natural gas of the remote gas well cannot be collected and transported by a centralized pressurization method; the well mouth pressure of a low-yield gas well is very low, and the natural gas can not be smoothly collected and transported through the energy of a well shaft per se; after the oil and gas exploitation enterprises complete the drilling operation, the gains of building the pipe network are usually calculated. For gas wells with low reserves and low investment income for building a pipe network, oil and gas enterprises can temporarily close and seal the gas wells, so that the gas wells without the matching pipe network cannot produce natural gas.
In the prior art, for remote gas wells and low-yield gas wells, production is generally carried out by adopting a wellhead pressurization mode. For gas wells without a matching pipe network, no other method is currently available for production. The existing wellhead pressurization method can realize the production of remote gas wells and low-yield gas wells. However, because oil and gas production is simultaneously performed by a plurality of gas wells, the rest of the gas wells which are not subjected to wellhead pressurization and are positioned in the same valve bank are often subjected to yield reduction due to the pressure rise of the valve bank. The net result is that a wellhead pressurized gas well is produced, but the production of the same valve bank is not increased and the cost of wellhead pressurization is higher.
SUMMERY OF THE UTILITY MODEL
The utility model provides a well head gas recovery unit, well head gas recovery unit can solve above-mentioned technical problem effectively.
The utility model discloses a well head gas recovery device, which comprises a compressor unit, a dehydration device, a gas filling column, a gas inlet pipe and a control device; the air inlet pipe is provided with an air inlet and an air outlet, and the compressor unit and the air filling column are sequentially arranged along the direction close to the air outlet; the dehydration device is arranged between the air inlet and the air charging column; the compressor unit, the dehydration device and the gas filling column are all communicated with the gas inlet pipe; the compressor unit, the dehydration device and the gas filling column are all connected with the control device.
In one embodiment, the dewatering device is disposed between the air inlet and the compressor train.
In one embodiment, the dewatering device is disposed between the compressor train and the gas column.
In one embodiment, the wellhead gas recovery device further comprises a noise reduction outer cover, and the compressor unit, the dehydration device, the gas filling column and the control device are arranged on the inner side of the noise reduction outer cover.
In one embodiment, the wellhead gas recovery device further comprises an alarm device, the alarm device is arranged outside the noise reduction outer cover, and the alarm device is electrically connected with the control device; the alarm device is configured such that, when the parameter information of the compressor unit, the dehydration device, and the gas column received by the control device is greater than a preset value, the control device starts the alarm device and shuts down the compressor unit, the dehydration device, and the gas column.
In one embodiment, the alarm device is provided as an audible and visual alarm device.
The utility model also provides a well head gas recovery system, which comprises a desulfurization device, an automatic pollution discharge separation device and the well head gas recovery device; and the desulfurization device and the automatic pollution discharge separation device are sequentially connected to the air inlet through connecting pipes along the direction close to the wellhead gas recovery device.
In one embodiment, the wellhead gas recovery system further comprises a dewatering tank and a gas-fired power unit; the dehydration tank and the gas generator set are connected in parallel with the wellhead gas recovery device through a branch pipe, and the gas generator set is electrically connected with the control device and used for supplying power to the control device.
In one embodiment, the well head gas recovery system further comprises a gas valve, a pressure reducing valve, and a pressure regulating valve; the gas valve is arranged on one side of the dehydration tank close to the automatic sewage draining and separating device, and the pressure reducing valve and the pressure regulating valve are arranged on the branch pipe between the gas valve and the dehydration tank.
In one embodiment, the well head gas recovery system further comprises an inbound pressure gauge disposed on the branch pipe proximate to the gas valve.
The utility model provides a pair of well head gas recovery unit compares with prior art, possesses following beneficial effect at least:
the utility model provides a well head gas recovery device, which comprises a compressor unit, a dehydration device, a gas filling column, a gas inlet pipe and a control device; the air inlet pipe is provided with an air inlet and an air outlet, and the compressor unit and the air filling column are sequentially arranged along the direction close to the air outlet; the dehydration device is arranged between the air inlet and the air charging column; the compressor unit, the dehydration device and the gas filling column are all communicated with the gas inlet pipe; the compressor unit, the dehydration device and the gas filling column are all connected with the control device. The well head gas can be dehydrated and purified by a dehydrating device, enters a compressor unit for pressurization, and then can be used for aerating a tank car or an automobile by an aerating column. The control device controls the pressure, temperature, voltage, current and other relevant parameters of the compressor set, the dehydration device and the gas column, and is used for displaying, starting, alarming, stopping and the like of the whole device. The utility model provides a well head gas recovery unit directly realizes the production and the sale of gas well at the well head, does not produce the contact with natural gas transmission pipe network, independently carries out the production operation, is fit for field work, can realize the production of long-range gas well and low yield gas well effectively, can reduction in production cost effectively simultaneously.
The utility model provides a well head gas recovery system owing to including foretell well head gas recovery unit, consequently also possesses and has foretell beneficial effect.
Drawings
The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings.
Fig. 1 is a schematic view of a flow structure of a wellhead gas recovery device according to an embodiment of the present invention;
fig. 2 is an overall structure schematic diagram of the wellhead gas recovery system of the embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Reference numerals:
10-a wellhead gas recovery device; 11-a compressor train; 12-a control device; 13-a dewatering device; 15-gas column; 161-air inlet; 163-air outlet; 17-a noise reduction housing; 20-a wellhead gas recovery system; 21-a desulfurization unit; 22-automatic blowdown separator; 23-a dewatering tank; 24-a gas generator set; 25-gas valves; 251-primary pressure relief valve; 252-a secondary pressure relief valve; 253-primary pressure regulating valve; 254-a secondary pressure regulating valve; 255-arrival pressure gauge; 26-a user terminal; 27-a remote device; 281-a first valve; 282-a second line; 283-a second valve; 284-third line; 285-a third valve; 286-a first air intake hose; 287-a second air intake hose; 29-branch pipe; 291-gas hose; 292-shut off valve; 293-cable.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, a wellhead gas recovery device 10 of the present invention includes a compressor unit 11, a dehydration device 13, a gas column 15, a gas inlet pipe and a control device 12; the air inlet pipe is provided with an air inlet 161 and an air outlet 163, and the compressor unit 11 and the air filling column 15 are arranged in sequence along the direction close to the air outlet 163; the dehydration device 13 is disposed between the air inlet 161 and the air-adding column 15; the compressor unit 11, the dehydration device 13 and the gas filling column 15 are all communicated with the gas inlet pipe; the compressor unit 11, the dehydration device 13 and the gas filling column 15 are all connected with the control device 12.
The utility model provides a well head gas recovery device 10, which comprises a compressor unit 11, a dehydration device 13, a gas filling column 15, an air inlet pipe and a control device 12; the air inlet pipe is provided with an air inlet 161 and an air outlet 163, and the compressor unit 11 and the air filling column 15 are arranged in sequence along the direction close to the air outlet 163; the dehydration device 13 is disposed between the air inlet 161 and the air-adding column 15; the compressor unit 11, the dehydration device 13 and the gas filling column 15 are all communicated with the gas inlet pipe; the compressor unit 11, the dehydration device 13 and the gas filling column 15 are all connected with the control device 12. Well head gas can be dehydrated and purified by a dehydrating device 13, enters a compressor unit 11 for pressurization, and then can be aerated into a tank car or an automobile by an aerating column 15. The control device 12 controls the pressure, temperature, voltage, current and other relevant parameters of the compressor unit 11, the dehydration device 13 and the gas filling column 15, and is used for displaying, starting, alarming, stopping and the like of the whole device. The utility model provides a well head gas recovery unit 10 directly realizes the production and the sale of gas well at the well head, does not produce the contact with natural gas transmission pipe network, independently carries out the production operation, is fit for field work, can realize the production of long-range gas well and low yield gas well effectively, can reduce manufacturing cost effectively simultaneously.
It should be noted that the utility model provides a well head gas recovery unit 10 can be used to the wide application in the occasion that needs to gas recovery such as natural gas well head, oil field associated gas well head, coal bed gas well head, shale gas well head. In the present embodiment, natural gas is mainly taken as an example.
In one example, the dehydration engine 13 is disposed between the air inlet 161 and the compressor string 11. It should be noted that the dewatering device 13 is disposed between the air inlet 161 and the compressor unit 11, that is, the dewatering device 13 is disposed in front, so that the intake air is dewatered first and then compressed.
In one example, the dehydration unit 13 is disposed between the compressor train 11 and the gas column 15. It should be noted that the dehydration device 13 is disposed between the compressor unit 11 and the air-entraining column 15, that is, the dehydration device 13 is disposed at the rear, so that the intake air is compressed and then dehydrated.
In one example, the wellhead gas recovery device 10 further comprises a noise reduction housing 17, and the compressor unit 11, the dehydration device 13, the gas filling column 15 and the control device 12 are all arranged inside the noise reduction housing 17. The noise reduction housing 17 is provided to effectively reduce noise.
In one example, the wellhead gas recovery device 10 further comprises an alarm device, the alarm device is arranged outside the noise reduction housing 17, and the alarm device is electrically connected with the control device 12; the alarm device is configured such that, when the parameter information of the compressor unit 11, the dehydration device 13, and the gas column 15 received by the control device 12 is greater than a preset value, the control device 12 activates the alarm device and shuts down the compressor unit 11, the dehydration device 13, and the gas column 15. Set up alarm device, when the parameter surpassed preset scope, also in time remind the user to overhaul and shut down, the user of being convenient for monitors well head gas recovery unit 10's operational aspect better, improves well head gas recovery unit 10's security performance simultaneously.
In particular, in one example, the alarm device is configured as an audible and visual alarm device. The audible and visual alarm is called as audible and visual alarm number and is set for meeting the special requirements of customers on the alarm loudness and the installation position. Simultaneously, two alarm signals of sound and light are sent out. The staff can easily see and hear the alarm information, so as to eliminate hidden danger in time.
The utility model also provides a well head gas recovery system 20, the well head gas recovery system 20 comprises a desulphurization device 21, an automatic pollution discharge separation device 22 and the well head gas recovery device 10; the desulfurization device 21 and the automatic blowdown separator 22 are sequentially connected to the air inlet 161 through a connection pipe in a direction close to the wellhead gas recovery device 10. The desulfurization device 21 is a device for removing sulfur in raw materials, and the desulfurization device 21 can effectively reduce the pollution of well head gas to the environment; meanwhile, the automatic pollution discharge separation device 22 is arranged, so that wellhead gas can be further purified, the purity of the wellhead gas is improved, and the use by a user is facilitated. It should be noted that the desulfurization unit 21 determines whether to put the equipment into use according to whether the sulfur content of the wellhead gas meets the standard. That is, the desulfurization apparatus 21 can be selected according to the user's needs. The automatic blowdown separator 22 is a device for separating well head gas, and has an automatic blowdown alarm function. The separation load of the recovery integrated device is reduced, and the normal operation of the recovery integrated device is ensured.
In one example, the wellhead gas recovery system 20 further comprises a dewatering tank 23 and a gas-fired power unit 24; the dewatering tank 23 and the gas generator set 24 are connected in parallel with the wellhead gas recovery device 10 through a branch pipe 29, and the gas generator set 24 is electrically connected with the control device 12 and used for supplying power to the control device 12. Set up the dewatering tank 23 and be convenient for realize the dehydration, dewatering tank 23 is for guaranteeing to provide the generating set reliable and stable well head gas, purifies and the equipment of steady voltage to well head gas. The gas generator set 24 is used for supplying power to the control device 12, and is equipment for supplying power electricity to non-grid areas such as a remote well and the like through natural gas of a well mouth. Specifically, the generator set is provided with a sound box, has the functions of noise reduction, rain prevention and the like, and is convenient for field operation. It should be understood that the arrangement of the dewatering tank 23 and the gas generator set 24 is not limited herein, and it should be understood that in other embodiments, the dewatering tank 23 and the gas generator set 24 may not be provided according to the requirement of the user. Meanwhile, it should be noted that the dewatering tank 23 and the gas generator set 24 are connected in parallel with the wellhead gas recovery device 10 through a branch pipe 29, in the actual implementation process, there are two flow paths for the wellhead gas after flowing through the desulfurization device 21 and the automatic pollution discharge separation device 22, and the first one directly flows through the wellhead gas recovery device 10; the second passes through the dewatering tank 23, the generator set and the wellhead gas recovery device 10.
In one example, the well head gas recovery system 20 further comprises a gas valve 25, a pressure reducing valve, and a pressure regulating valve; the gas valve 25 is arranged on one side of the dewatering tank 23 close to the automatic blowdown separator 22, and the pressure reducing valve and the pressure regulating valve are arranged on the branch pipe 29 between the gas valve 25 and the dewatering tank 23. In the present embodiment, the gas valve 25 is provided to facilitate the control of the gas inlet path, so that the user can select the first type to directly flow through the wellhead gas recovery device 10; or the second through the dewatering tank 23, the generator set and the wellhead gas recovery device 10. Meanwhile, the pressure of well head gas is reduced by arranging the pressure reducing valve, so that the stability in the gas filling process is improved; the provision of a pressure regulating valve facilitates regulation of the pressure of the well head gas in the branch pipe 29. Specifically, in the present embodiment, the pressure reducing valves include a primary pressure reducing valve 251 and a secondary pressure reducing valve 252; the pressure regulating valves include a primary pressure regulating valve 253 and a secondary pressure regulating valve 254.
In one example, the wellhead gas recovery system 20 further comprises an inbound pressure gauge 255, the inbound pressure gauge 255 being disposed on the branch 29 proximate to the gas valve 25. The pressure gauge is provided to facilitate the user in viewing the pressure value in the inflow branch 29.
In one example, the well head gas recovery system 20 further includes a user terminal 26, the user terminal 26 configured as a CNG tanker or vehicle.
In an example, the well head gas recovery system 20 further includes a remote device 27, and the remote device 27 is electrically connected to the control device 12 and is used for remotely transmitting parameter information of the temperature, the pressure, the flow rate, the opening state of the equipment and the like acquired by the control device 12, so as to facilitate remote monitoring by a user.
Specifically, in this embodiment, the present invention provides a well head gas recovery system 20, in which the well head gas passes through a desulfurization device 21, a first valve 281, a second pipeline 282, an automatic blowdown separator 22, and a second valve 283 behind. The gas is then split into two paths: first, the gas enters the well head gas recovery device 10 through a third pipeline 284, a third valve 285 and a first gas inlet hose 286 of the recovery integrated device, is pressurized and dehydrated, and then enters a CNG tank car or a vehicle through a gas filling column 15 and a second gas inlet hose 287. The second is that the gas passes through the gas generator set 24, the branch pipe 29, the gas valve 25, the primary pressure reducing valve 251, the secondary pressure reducing valve 252 to the dehydration tank 23, the gas is purified and stabilized, the gas passes through the gas hose 291 and the cut-off valve 292 to the generator set to generate power, and the power is supplied to the wellhead gas recovery device 10 through the cable 293 after the power generation. In order to ensure stable and reliable gas pressure, the pressure is ensured to be accurate by the station entering pressure gauge 255, the primary pressure regulating valve 253 and the secondary pressure regulating valve 254 with different ranges.
The utility model provides a well head gas recovery system 20 is owing to include foretell well head gas recovery unit 10, consequently also possesses foretell beneficial effect.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The wellhead gas recovery device is characterized by comprising a compressor unit, a dehydration device, a gas filling column, a gas inlet pipe and a control device; the air inlet pipe is provided with an air inlet and an air outlet, and the compressor unit and the air filling column are sequentially arranged along the direction close to the air outlet; the dehydration device is arranged between the air inlet and the air charging column; the compressor unit, the dehydration device and the gas filling column are all communicated with the gas inlet pipe; the compressor unit, the dehydration device and the gas filling column are all connected with the control device.
2. A wellhead gas recovery device according to claim 1, characterised in that the dewatering device is disposed between the gas inlet and the compressor unit.
3. A wellhead gas recovery device according to claim 2, characterised in that the dewatering device is arranged between the compressor unit and the gas column.
4. The wellhead gas recovery device according to any one of claims 1 to 3, further comprising a noise reduction housing, wherein the compressor unit, the dewatering device, the gas column and the control device are all disposed inside the noise reduction housing.
5. The wellhead gas recovery device according to claim 4, further comprising an alarm device disposed outside the noise reduction housing, the alarm device being electrically connected to the control device; the alarm device is configured such that, when the parameter information of the compressor unit, the dehydration device, and the gas column received by the control device is greater than a preset value, the control device starts the alarm device and shuts down the compressor unit, the dehydration device, and the gas column.
6. The wellhead gas recovery device according to claim 5, wherein the alarm device is provided as an audible and visual alarm device.
7. A wellhead gas recovery system, characterized in that it comprises a desulfurization unit, an automatic blowdown separation unit and a wellhead gas recovery unit as claimed in any one of claims 1 to 6; and the desulfurization device and the automatic pollution discharge separation device are sequentially connected to the air inlet through connecting pipes along the direction close to the wellhead gas recovery device.
8. The wellhead gas recovery system according to claim 7, further comprising a dewatering tank and a gas-fired power unit; the dehydration tank and the gas generator set are connected in parallel with the wellhead gas recovery device through a branch pipe, and the gas generator set is electrically connected with the control device and used for supplying power to the control device.
9. The wellhead gas recovery system according to claim 8, further comprising a gas valve, a pressure reducing valve, and a pressure regulating valve; the gas valve is arranged on one side of the dehydration tank close to the automatic sewage draining and separating device, and the pressure reducing valve and the pressure regulating valve are arranged on the branch pipe between the gas valve and the dehydration tank.
10. The wellhead gas recovery system according to claim 9, further comprising an on-board pressure gauge disposed on the branch proximate to the gas valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020698214.1U CN212272135U (en) | 2020-04-30 | 2020-04-30 | Wellhead gas recovery device and wellhead gas recovery system |
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| CN202020698214.1U CN212272135U (en) | 2020-04-30 | 2020-04-30 | Wellhead gas recovery device and wellhead gas recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052369A (en) * | 2023-10-12 | 2023-11-14 | 大庆信辰油田技术服务有限公司 | Skid-mounted well head gas recovery device |
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2020
- 2020-04-30 CN CN202020698214.1U patent/CN212272135U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052369A (en) * | 2023-10-12 | 2023-11-14 | 大庆信辰油田技术服务有限公司 | Skid-mounted well head gas recovery device |
| CN117052369B (en) * | 2023-10-12 | 2024-01-05 | 大庆信辰油田技术服务有限公司 | Skid-mounted well head gas recovery device |
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