CN219492271U - Movable vehicle-mounted pressure-reducing, water-draining and gas-collecting device - Google Patents
Movable vehicle-mounted pressure-reducing, water-draining and gas-collecting device Download PDFInfo
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- CN219492271U CN219492271U CN202320156274.4U CN202320156274U CN219492271U CN 219492271 U CN219492271 U CN 219492271U CN 202320156274 U CN202320156274 U CN 202320156274U CN 219492271 U CN219492271 U CN 219492271U
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Abstract
The utility model discloses a movable vehicle-mounted depressurization drainage gas production device which comprises a motor vehicle, wherein a base is fixedly arranged on a vehicle body of the motor vehicle through a fixing bolt, a three-phase separator is arranged on the base, a gas inlet of the three-phase separator is connected with a gas inlet pipeline, a gas outlet of the three-phase separator is respectively connected with a compressor unit and a gas engine through pipelines, and a gas outlet of the compressor unit is connected with a gas outlet pipeline. The movable vehicle-mounted depressurization drainage gas production device organically combines the motor vehicle with the depressurization drainage gas production device, can meet the drainage gas production requirements of different flooding wells, has high integration level, is convenient for field installation and migration, has small occupied area, can overcome the condition limit of well sites, and is easy to popularize in scale.
Description
Technical Field
The utility model belongs to the technical field of gas field production increasing equipment, and particularly relates to a movable vehicle-mounted depressurization, drainage and gas production device.
Background
In recent years, the natural gas consumption is increased year by year, the conventional gas reservoir is reduced in proportion, the hypotonic and compact gas reservoirs are dominant gradually, but the hypotonic and compact gas reservoirs generally have the characteristics of low pressure and low yield, the reduction of the production pressure difference in the middle and later stages of gas well production can cause serious gas well effusion, normal production cannot be realized, even the well is shut in for a long time by flooding, and the production pressure difference cannot be increased in the conventional drainage and production processes such as foam drainage, gas lift drainage, preferably tubular column drainage, plunger drainage and the like, so that the fundamental problem of gas well effusion cannot be solved.
The existing depressurization, drainage and gas production process can increase the production pressure difference, effectively drain accumulated liquid in a shaft, solve the problems of low pressure, flooding and the like of a gas well, and solve the problems of incapability of solving flooding of the gas well due to the fact that the gas well is low in general water yield and not continuously producing water, but the depressurization, drainage and gas production process is large in investment equipment and inconvenient in equipment migration, so that the depressurization equipment is idle at a well site for a long time, resource waste is caused, economic benefit is poor, and meanwhile, the depressurization and gas production equipment cannot be popularized on a large scale due to the condition of the ground of the well site, and therefore the flooding problem of the gas well is not solved, and the efficient development of the gas field is restricted. Therefore, it is imperative to seek a vehicle-mounted mobile pressure-reducing drainage device.
Disclosure of Invention
The utility model aims to provide a movable vehicle-mounted depressurization, drainage and gas production device, which solves the problems that the depressurization, drainage and gas production process in the prior art is more in equipment investment, inconvenient in equipment migration and incapable of being popularized on a large scale.
The utility model adopts the technical scheme that the movable vehicle-mounted depressurization drainage gas production device comprises a motor vehicle, wherein a base is fixedly arranged on a vehicle body of the motor vehicle through a fixing bolt, a three-phase separator is arranged on the base, a gas inlet of the three-phase separator is connected with a gas inlet pipeline, a gas outlet of the three-phase separator is respectively connected with a compressor unit and a gas engine through pipelines, and a gas outlet of the compressor unit is connected with a gas outlet pipeline.
The present utility model is also characterized in that,
h-shaped supporting legs are respectively arranged at the head end and the tail end of the chassis of the motor vehicle body, and a base plate is arranged at the bottom of each H-shaped supporting leg.
A valve group a is arranged in a pipeline of the air inlet pipeline, and a flowmeter and a valve group b are sequentially arranged in a pipeline of the air outlet pipeline according to the air flow direction.
The compressor unit comprises a filter and a hydraulic compressor which are connected through pipelines in sequence according to the airflow direction, and the hydraulic compressor is driven by a motor.
The gas engine is arranged in parallel with the fuel engine of the motor vehicle.
The motor vehicle body is provided with a control console near the vehicle head, the control console is respectively and electrically connected with a motor of a motor vehicle fuel engine, a gas engine, a three-phase separator and a hydraulic compressor and an H-shaped supporting leg, and the opening and the closing of all equipment are realized through a switch arranged on the control console.
The compressor unit and the gas engine are arranged on the base.
And connecting pipelines in the movable vehicle-mounted depressurization, drainage and gas production device are seamless steel pipes.
The utility model has the advantages that,
(1) The movable vehicle-mounted depressurization drainage gas production device organically combines the motor vehicle with the depressurization drainage gas production device, has high integration level, is convenient for on-site installation and migration, has small occupied area, can overcome the limitation of well site conditions, and is easy to popularize on a large scale.
(2) The movable vehicle-mounted depressurization drainage gas production device has simple process, and mainly reduces the wellhead pressure of the gas well gradually through the hydraulic compressor, so that the production pressure difference is enlarged, gas well effusion is discharged along with natural gas, liquid removal and natural gas collection are realized after gas-liquid separation is carried out through the three-phase separator, the requirements of drainage gas production of different flooded wells can be met, and further the gas field recovery ratio is improved.
Drawings
Fig. 1 is a schematic structural view of a movable vehicle-mounted depressurization, drainage and gas production device.
In the figure, 1, a gas production tree, 2, an air inlet pipeline, 3, a three-phase separator, 4, a valve group a,5, a compressor group, 6, a filter, 7, a hydraulic compressor, 8, a motor, 9, a gas generator, 10, a console, 11, a flowmeter, 12, a valve group b,13, an air outlet pipeline, 14, a motor vehicle, 15, an H-shaped supporting leg, 16, a backing plate, 17, a fixing bolt and 18, and a base.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the detailed description.
The movable vehicle-mounted depressurization drainage gas production device has a structure shown in figure 1, and comprises a motor vehicle 14, wherein a base 18 is fixedly arranged on a vehicle body of the motor vehicle 14 through a fixing bolt 17, a three-phase separator 3 is arranged on the base 18 and is used for separating liquid-carrying natural gas produced by a gas well, the separated natural gas is discharged from a gas outlet of the three-phase separator 3, and separated liquid is discharged from a water outlet of the three-phase separator 3, and in addition, the three-phase separator 3 can also observe gas production, water production data and various pressure data; the gas inlet of the three-phase separator 3 is connected with a gas inlet pipeline 2, the other end of the gas inlet pipeline 2 is connected to a gas outlet of a gas production tree 1 arranged at the wellhead of a gas well, and liquid-carrying natural gas collected by the gas production tree 1 is conveyed into the three-phase separator 3 for gas-liquid separation; after being discharged from the gas outlet of the three-phase separator 3, most natural gas is conveyed to the compressor unit 5 through a pipeline for filtering and compressing, and then is conveyed to an outer conveying pipeline of the gas production tree 1 through a gas outlet pipeline 13, and the small part natural gas is conveyed to the gas engine 9 through the pipeline for providing fuel for the gas engine 9, wherein the compressor unit 5 and the gas engine 9 are both arranged on the base 18.
Wherein, considering the load of each device, the motor vehicle 14 adopts a special van type vehicle with the load of more than 20 tons; in order to achieve both transportation and stable operation of the depressurization, drainage and gas production device, H-shaped supporting legs 15 are respectively arranged at the front end and the rear end of a chassis of a motor vehicle 14, a base plate 16 is arranged at the bottom of each H-shaped supporting leg 15, and the H-shaped supporting legs 15 and the base plate 16 are retracted for transportation in the transportation process of the motor vehicle 14; in the process of depressurization, drainage and gas production, the H-shaped supporting legs 15 and the base plate 16 are put down to ensure the level and stability of the chassis of the motor vehicle 14, so that each device installed on the motor vehicle 14, particularly the compressor unit 5, can safely and reliably operate, wherein the H-shaped supporting legs 15 realize the retraction and the release of the H-shaped supporting legs 15 by adopting a control technology disclosed in China patent on-vehicle hydraulic supporting leg control system (publication No. CN208073889U, publication No. 2017.12.29 and publication No. 2018.11.09).
A valve group a 4 is arranged in a pipeline of the air inlet pipeline 2 and is used for realizing the opening and closing of the pipeline and the adjustment of the natural gas flow of liquid carried in the pipeline; the flow meter 11 and the valve group b 12 are sequentially arranged in the pipeline of the air outlet pipeline 13 according to the air flow direction, the flow meter 11 can meter the instantaneous flow of the external natural gas, and the valve group b 12 is used for realizing the opening and closing of the pipeline and the adjustment of the external natural gas flow in the pipeline.
The compressor unit 5 comprises a filter 6 and a hydraulic compressor 7 which are sequentially connected through pipelines according to the airflow direction, the hydraulic compressor 7 is driven by a motor 8, wherein the filter 6 is used for filtering impurities in natural gas, damage and faults to the compressor are avoided, the hydraulic compressor 7 compresses and pressurizes the filtered natural gas, the hydraulic compressor 7 adopted by the utility model has low medium requirement and wide pressure application range, is particularly suitable for well head gas recovery working conditions developed at present in China, can fully utilize the energy of the well head gas, realizes the maximization of the energy utilization of the well head gas, has low equipment fault rate, low energy consumption and convenient maintenance, can effectively reduce the air release consumption, and improves the recovery ratio of gas fields.
The gas engine 9 supplies power to the three-phase separator 3 and the motor 8 of the hydraulic compressor 7 of the pressure reducing and draining device so as to drive the three-phase separator 3 and the hydraulic compressor 7 to operate, and at the beginning of the operation of the device, the gas engine 9 and the fuel engine of the motor vehicle 14 are connected in parallel to provide power for the device so as to ensure the smooth starting operation of the pressure reducing and draining device, the fuel engine of the motor vehicle 14 is used as a power source at the beginning of the operation of the device, and then the power source is switched to the gas engine 9.
The automobile body of the motor vehicle 14 is also provided with a control console 10 near the automobile head, the control console 10 is respectively and electrically connected with the motor 8 of the motor vehicle 14, the gas engine 9, the three-phase separator 3 and the hydraulic compressor 7 and the H-shaped supporting leg 15, and the opening and the closing of each device are correspondingly realized through a plurality of switches arranged on the control console 10.
In addition, the connecting pipelines in the device are seamless steel pipes, preferably L245N seamless steel pipes, and the design pressure of the connecting pipelines is matched with the working pressure of each device.
The movable vehicle-mounted depressurization drainage gas production device organically combines the motor vehicle with the depressurization drainage gas production device, has high integration level, is convenient for field installation and migration, occupies small area, can overcome the limitation of well site conditions, and is easy to popularize on a large scale.
The movable vehicle-mounted depressurization drainage gas production device is simple in process, the pressure of the wellhead of a gas well is gradually reduced through the hydraulic compressor 7, so that the production pressure difference is enlarged, gas well effusion is discharged along with natural gas, liquid removal and natural gas collection are realized after gas-liquid separation is carried out through the three-phase separator 3, the requirements of drainage gas production of different flooded wells can be met, and further the gas field recovery ratio is improved. The working process is as follows:
firstly, moving the motor vehicle 14 to the side of a wellhead of a gas well, aligning the tail part of the motor vehicle to the wellhead, and putting down an H-shaped supporting leg 15 and a base plate 16 of a chassis of a body of the motor vehicle 14 by an operation console 10 to ensure the level and stability of the chassis of the body;
secondly, connecting an air inlet of an air inlet pipeline 2 to an air outlet of a wellhead gas production tree 1, connecting an air outlet of an air outlet pipeline 13 with an outer transmission pipeline of the gas production tree 1, and starting a fuel engine of a motor vehicle 14 to provide power for a hydraulic compressor 7 and a three-phase separator 3 through the operation of a console 10 to start running;
and thirdly, the stroke and the stroke frequency of the hydraulic compressor 7 are adjusted to gradually reduce the pressure of the air inlet pipeline 2, the production pressure difference is increased, natural gas is carried into the air inlet pipeline 2 and is subjected to gas-liquid separation through the three-phase separator 3, separated liquid is singly discharged from a water outlet of the three-phase separator 3, a small part of separated natural gas is conveyed to the gas engine 9 through the pipeline to provide power, the vast majority of the separated natural gas sequentially enters the filter 6 and the hydraulic compressor 7 according to the airflow direction, is filtered and compressed to be higher than the pressure of the outer conveying pipeline of the gas production tree 1 and is conveyed to the outer conveying pipeline of the gas production tree 1 through the gas outlet pipeline 13, and in the process, the control console 10 is operated to switch a power source from the fuel engine of the motor vehicle 14 to the gas engine 9.
Finally, when the operation is completed until all the accumulated liquid at the bottom of the well is discharged, the three-phase separator 3, the hydraulic compressor 7 and the gas engine 9 are closed through the operation of the console 10, the H-shaped supporting leg 15 and the base plate 16 of the chassis of the body of the motor vehicle 14 are lifted, the air inlet pipeline 2 and the air outlet pipeline 13 are removed from the air production tree 1, and then the operation of reducing pressure, draining water and producing air of the air well is completed, and the air production tree can be moved to other air wells for operation.
Claims (8)
1. The movable vehicle-mounted depressurization drainage gas production device is characterized by comprising a motor vehicle (14), wherein a base (18) is fixedly arranged on a vehicle body of the motor vehicle (14) through a fixing bolt (17), a three-phase separator (3) is arranged on the base (18), an air inlet of the three-phase separator (3) is connected with an air inlet pipeline (2), an air outlet of the three-phase separator (3) is respectively connected with a compressor unit (5) and a gas engine (9) through pipelines, and an air outlet of the compressor unit (5) is connected with an air outlet pipeline (13).
2. The movable vehicle-mounted depressurization drainage gas production device according to claim 1, wherein the head end and the tail end of the chassis of the motor vehicle (14) are respectively provided with an H-shaped supporting leg (15), and a base plate (16) is arranged at the bottom of the H-shaped supporting leg (15).
3. The movable vehicle-mounted depressurization drainage gas production device according to claim 1 or 2, wherein a valve group a (4) is arranged in a pipeline of the gas inlet pipeline (2), and a flowmeter (11) and a valve group b (12) are sequentially arranged in a pipeline of the gas outlet pipeline (13) according to the gas flow direction.
4. The movable vehicle-mounted depressurization drainage gas production device according to claim 1 or 2, wherein the compressor unit (5) comprises a filter (6) and a hydraulic compressor (7) which are connected in sequence through pipelines according to the air flow direction, and the hydraulic compressor (7) is driven by a motor (8).
5. The mobile vehicle-mounted depressurization drainage gas production device according to claim 4, characterized in that the gas engine (9) is arranged in parallel with the fuel engine of the motor vehicle (14).
6. The movable vehicle-mounted depressurization drainage gas production device according to claim 5, wherein a control console (10) is arranged at a position, close to a vehicle head, of a vehicle body of the motor vehicle (14), and the control console (10) is electrically connected with a fuel engine, a gas engine (9), a three-phase separator (3), a motor (8) of a hydraulic compressor (7) and an H-shaped supporting leg (15) of the motor vehicle (14) respectively, and opening and closing of equipment are achieved through a switch arranged on the control console (10).
7. The movable vehicle-mounted depressurization drainage gas production device according to claim 1 or 2, wherein the compressor unit (5) and the gas engine (9) are arranged on a base (18).
8. The movable vehicle-mounted depressurization, drainage and gas production device according to claim 1 or 2, wherein the connecting pipelines in the movable vehicle-mounted depressurization, drainage and gas production device are seamless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156274.4U CN219492271U (en) | 2023-02-07 | 2023-02-07 | Movable vehicle-mounted pressure-reducing, water-draining and gas-collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156274.4U CN219492271U (en) | 2023-02-07 | 2023-02-07 | Movable vehicle-mounted pressure-reducing, water-draining and gas-collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492271U true CN219492271U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320156274.4U Active CN219492271U (en) | 2023-02-07 | 2023-02-07 | Movable vehicle-mounted pressure-reducing, water-draining and gas-collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492271U (en) |
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2023
- 2023-02-07 CN CN202320156274.4U patent/CN219492271U/en active Active
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