CN214403525U - Gas well continuous drainage and production device - Google Patents
Gas well continuous drainage and production device Download PDFInfo
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- CN214403525U CN214403525U CN202022940325.1U CN202022940325U CN214403525U CN 214403525 U CN214403525 U CN 214403525U CN 202022940325 U CN202022940325 U CN 202022940325U CN 214403525 U CN214403525 U CN 214403525U
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Abstract
The utility model discloses a gas well continuous drainage and production device, which adopts an air inlet separation pressure stabilizing system, a pressurizing system and a hydraulic sewage discharge system; utilize the air inlet of separation surge tank to connect in oil pipe that admits air, carry out gas-liquid separation to the oil gas of gathering, then utilize to connect in the hydraulic pressure drainage system of separation surge tank bottom and carry out powerful blowdown, and connect in the gas outlet of separation surge tank through the compressor, carry out the pressure boost processing to the gas after the gas-liquid separation, can last the exhaust, utilize separation buffer tank and pressure device simultaneously, carry out pressure discharge to the liquid after the separation in the separation surge tank, avoid forming the problem of water seal, continuously take the water operation in gas production defeated outer defeated and gas lift drainage operation, utilize hydraulic pressure drainage system to carry out the drainage operation, the efficiency of extraction has been improved greatly.
Description
Technical Field
The utility model belongs to the gas well is adopted and is arranged the field, concretely relates to gas well is arranged in succession and is adopted device.
Background
In the field of exploitation of compact gas fields, liquid accumulation in a shaft is a problem which is bound to face in the life cycle of a gas well, the effective production time of the gas well can be shortened due to the liquid accumulation in the shaft, and if effective measures are not taken in time, the gas well faces the major problems of early production halt and final recovery rate reduction. Taking the most compact gas field surrige gas field at present in China as an example, the total number of gas wells is 13000, wherein the number of gas wells with the daily output of less than 5 thousand is 60%, the number of gas wells with the daily output of less than 3 thousand is 54%, the problem of shaft effusion caused by water production of the gas wells seriously influences the efficient development of the gas field, and a water drainage and gas production technology with high efficiency and low cost is urgently needed.
The existing supercharging extraction equipment has lower and lower air inlet pressure and can pump a wellhead into negative pressure. But the drainage capacity is poor, and after the compressor unit works for a certain time, the pressure at the wellhead is lower than the air inlet pressure of the compressor, and the compressor unit stops producing. The reason may be that the gas quantity near the well end is insufficient or the accumulated liquid in the well bore is not taken out in the gas production process, so that the height of a water cone in the well bore is increased, the bottom hole pressure is smaller than the liquid column back pressure, a water-sealed well is formed, and therefore greater economic loss is caused, namely the gas well can be directly scrapped while the recovery ratio of the gas well is reduced for a long time by the aid of the normally-called forced pumping and forced drainage. The drainage gas production technology applied to the current gas field mainly comprises foam drainage, a velocity string, a plunger gas lift, a nitrogen gas lift and the like. The foam exhaust and compressor have less operation on the ground, less risk, low requirements on equipment and process and relatively lower cost; other process equipment is more, the ground and the underground are required to be operated simultaneously, the risk is high, the requirement on the process flow is complex, and the cost is relatively high. The method has a series of problems of unsatisfactory implementation effect, no continuity of process technology, frequent liquid accumulation again after the liquid accumulation is discharged from the gas well for a short time, incapability of effectively and continuously stabilizing the yield and the like, and causes extremely complicated work of the water and gas discharging technology and high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas well is arranged in succession and is adopted device to overcome prior art's not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gas well continuous drainage and production device comprises an air inlet separation pressure stabilizing system, a pressurization system and a hydraulic blowdown system;
the air inlet separation pressure stabilizing system comprises a separation pressure stabilizing tank, and an air inlet of the separation pressure stabilizing tank is connected to an air inlet oil pipe;
the supercharging system comprises a compressor, wherein the inlet of the compressor is connected with the gas outlet of the separation pressure stabilizing tank;
the hydraulic sewage discharge system comprises a separation buffer tank and a pressure device, wherein an inlet of the separation buffer tank is connected to a liquid outlet of the separation pressure stabilizing tank, a liquid outlet of the separation buffer tank is connected to the pressure device, and a liquid outlet of the pressure device is connected to a sewage discharge pipe.
Furthermore, the separation surge tank comprises a first-stage separation surge tank and a second-stage separation surge tank, the inlet of the first-stage separation surge tank is connected to the oil pipe of the gas well, and the gas outlet of the second-stage separation surge tank is connected to the inlet of the compressor.
Further, an inlet pressure regulating valve is arranged at the inlet of the primary separation pressure stabilizing tank.
Furthermore, an air inlet ball valve is arranged on a pipeline for connecting the outlet of the first-stage separation pressure stabilizing tank with the outlet of the second-stage separation pressure stabilizing tank.
Furthermore, a pressure gauge and a thermometer are arranged on the first-stage separation pressure stabilizing tank and the second-stage separation pressure stabilizing tank.
Further, the turbocharging system includes the primary compressor, secondary compressor and cooling fan, be equipped with the one-level separation buffer tank between primary compressor and the secondary compressor, the entry linkage of primary compressor is in the gas outlet of separation surge tank, the exit linkage of primary compressor is in the entry of one-level separation buffer tank, connecting tube sets up in cooling fan one side between primary compressor and the one-level separation buffer tank, the exit linkage of one-level separation buffer tank is in the entry of secondary compressor, the exit linkage of secondary compressor has the secondary separation buffer tank, secondary separation buffer tank exit linkage is in discharge pipe.
Furthermore, a liquid outlet of the first-stage separation pressure stabilizing tank and a liquid outlet of the second-stage separation pressure stabilizing tank are both connected to a compressed liquid outlet of the pressure device, and a sewage discharge one-way valve is arranged on a sewage discharge pipe connected with the pressure pump.
Further, pressure device includes hydraulic pressure station, hydraulic pump and hydraulic cylinder, and the entry linkage of hydraulic pump is in hydraulic pressure station, and the exit linkage of hydraulic pump is in hydraulic cylinder's piston, and the liquid outlet of separation buffer tank is connected in hydraulic cylinder and is waited to compress the liquid entry, and hydraulic cylinder's compressed liquid exit linkage is in the blow off pipe, and the reciprocating motion of hydraulic cylinder's piston is controlled by hydraulic pressure station and hydraulic pump.
Furthermore, the compressor is connected with a gas engine through a transmission device, a gas inlet of the gas engine is connected with a fuel washing tank, and an inlet of the fuel washing tank is connected with a gas outlet of the separation pressure stabilizing tank.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model relates to a gas well continuous drainage and production device, which adopts an air inlet separation pressure stabilizing system, a pressurizing system and a hydraulic sewage disposal system; utilize the air inlet of separation surge tank to connect in oil pipe that admits air, carry out gas-liquid separation to the oil gas of gathering, then utilize to connect in the hydraulic pressure drainage system of separation surge tank bottom and carry out powerful blowdown, and connect in the gas outlet of separation surge tank through the compressor, carry out the pressure boost processing to the gas after the gas-liquid separation, can last the exhaust, utilize separation buffer tank and pressure device simultaneously, carry out pressure discharge to the liquid after the separation in the separation surge tank, avoid forming the problem of water seal, continuously take the water operation in gas production defeated outer defeated and gas lift drainage operation, utilize hydraulic pressure drainage system to carry out the drainage operation, the efficiency of extraction has been improved greatly.
Furthermore, the separation pressure stabilizing tank comprises a first-stage separation pressure stabilizing tank and a second-stage separation pressure stabilizing tank, and the double-machine separation is adopted, so that the gas-liquid separation effect is improved.
Furthermore, an inlet of the primary separation pressure stabilizing tank is provided with an air inlet pressure regulating valve, which is beneficial to air inlet discharge and mining regulation.
Furthermore, the compressor is connected with a gas engine through a transmission device, a gas inlet of the gas engine is connected with a fuel washing tank, and an inlet of the fuel washing tank is connected with a gas outlet of the separation pressure stabilizing tank, so that a gas production source is fully utilized, the structure is simple, gas production can be utilized on site, and the supply of remote energy is avoided.
Drawings
Fig. 1 is a schematic diagram of a specific structure in an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Wherein, 1, a first-stage separation pressure stabilizing tank; 2. a secondary separation pressure stabilizing tank; 3. an air inlet pressure regulating valve; 4. an intake ball valve; 5. a first stage compressor; 6. a secondary compressor; 7. a first-stage separation buffer tank; 8. a cooling fan; 9. a blowdown check valve; 10. a secondary separation buffer tank; 11. a hydraulic station; 12. a hydraulic pump; 13. a hydraulic cylinder; 14. a transmission device; 15. a gas engine; 16. the fuel washing tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1 to 3, a gas well continuous drainage and production device comprises a gas inlet separation pressure stabilizing system, a pressurization system and a hydraulic blowdown system;
the air inlet separation pressure stabilizing system comprises a separation pressure stabilizing tank, and an air inlet of the separation pressure stabilizing tank is connected to an air inlet oil pipe;
the supercharging system comprises a compressor, wherein the inlet of the compressor is connected with the gas outlet of the separation pressure stabilizing tank;
the hydraulic sewage discharge system comprises a separation buffer tank and a pressure device, wherein an inlet of the separation buffer tank is connected to a liquid outlet of the separation pressure stabilizing tank, a liquid outlet of the separation buffer tank is connected to the pressure device, and a liquid outlet of the pressure device is connected to a sewage discharge pipe.
Specifically, as shown in fig. 2, the separation pressure stabilizing tank includes a first-stage separation pressure stabilizing tank 1 and a second-stage separation pressure stabilizing tank 2, an inlet of the first-stage separation pressure stabilizing tank 1 is connected to an oil pipe of a gas well, an inlet pressure regulating valve 3 is arranged at an inlet of the first-stage separation pressure stabilizing tank 1, gas enters the first-stage separation pressure stabilizing tank 1 through the inlet pressure regulating valve 3 to separate moisture at a well mouth, an inlet ball valve 4 is arranged on a pipeline connecting an outlet of the first-stage separation pressure stabilizing tank 1 and an outlet of the second-stage separation pressure stabilizing tank 2, and the gas enters the second-stage separation pressure stabilizing tank 2 to improve the gas separation purity and improve the separation effect; and a gas outlet of the secondary separation pressure stabilizing tank 2 is connected to an inlet of a compressor, and separated gas is compressed and conveyed by the compressor.
All be equipped with manometer and thermometer on one-level separation surge tank 1 and the second grade separation surge tank 2 for obtain buffering admission pressure pulsation and slug flow operating mode in one-level separation surge tank 1 and the second grade separation surge tank 2.
Specifically, as shown in fig. 1, in the present application, the supercharging system includes a first-stage compressor 5, a second-stage compressor 6 and a cooling fan 8, a first-stage separation buffer tank 7 is arranged between the first-stage compressor 5 and the second-stage compressor 6, an inlet of the first-stage compressor 5 is connected to a gas outlet of the separation buffer tank, an outlet of the first-stage compressor 5 is connected to an inlet of the first-stage separation buffer tank 7, a connecting pipeline is arranged between the first-stage compressor 5 and the first-stage separation buffer tank 7 on one side of the cooling fan 8, cooling is performed through the cooling fan 8, an outlet of the first-stage separation buffer tank 7 is connected to an inlet of the second-stage compressor 6, an outlet of the second-stage compressor 6 is connected to a second-stage separation buffer tank 10, and an outlet of the second-stage separation buffer tank 10 is connected to a discharge pipeline.
Specifically, the liquid outlet of the first-stage separation pressure stabilizing tank 1 and the liquid outlet of the second-stage separation pressure stabilizing tank 2 are both connected to the compressed liquid outlet of the pressure device, a blowdown one-way valve 9 is arranged on a blowdown pipe connected with the pressure pump, and liquid is pressurized by the hydraulic pressure pump and then flows through the blowdown one-way valve 9 to be drained.
The pressure device comprises a hydraulic station 11, a hydraulic pump 12 and a hydraulic oil cylinder 13, wherein an inlet of the hydraulic pump 12 is connected to the hydraulic station 11, an outlet of the hydraulic pump 12 is connected to a piston of the hydraulic oil cylinder 13, a liquid outlet of the separation buffer tank is connected to an inlet of a liquid to be compressed of the hydraulic oil cylinder 13, a compressed liquid outlet of the hydraulic oil cylinder 13 is connected to a sewage discharge pipe, reciprocating motion of the piston of the hydraulic oil cylinder 13 is controlled by the hydraulic station 11 and the hydraulic pump 12, and the liquid is pressurized by the hydraulic oil cylinder 13 and then flows through a sewage discharge one-way valve for pressurization and sewage discharge.
The compressor is connected with a gas engine 15 through a transmission device 14, the transmission device 14 adopts a speed reducer, the gas engine 15 is used for providing power for the compressor, and a special power supply is not required; a fuel washing tank 16 is connected to a fuel inlet of the gas engine 15, a pressure gauge is arranged on the fuel washing tank 16, and an inlet of the fuel washing tank 16 is connected to a gas outlet of the separation pressure stabilizing tank. The gas outlet of the separation pressure stabilizing tank is divided into two paths, one path of the gas outlet passes through the fuel washing tank 16 and then enters the gas engine 15 to provide power for the gas engine 15, and the other path of the gas outlet is connected to the gas inlet oil pipe.
Claims (9)
1. A gas well continuous drainage and production device is characterized by comprising an air inlet separation pressure stabilizing system, a pressurization system and a hydraulic blowdown system;
the air inlet separation pressure stabilizing system comprises a separation pressure stabilizing tank, and an air inlet of the separation pressure stabilizing tank is connected to an air inlet oil pipe;
the supercharging system comprises a compressor, wherein the inlet of the compressor is connected with the gas outlet of the separation pressure stabilizing tank;
the hydraulic sewage discharge system comprises a separation buffer tank and a pressure device, wherein an inlet of the separation buffer tank is connected to a liquid outlet of the separation pressure stabilizing tank, a liquid outlet of the separation buffer tank is connected to the pressure device, and a liquid outlet of the pressure device is connected to a sewage discharge pipe.
2. The gas well continuous drainage and production device as claimed in claim 1, characterized in that the separation surge tank comprises a primary separation surge tank (1) and a secondary separation surge tank (2), wherein an inlet of the primary separation surge tank (1) is connected to a gas well oil pipe, and a gas outlet of the secondary separation surge tank (2) is connected to an inlet of a compressor.
3. A gas well continuous drainage and production device as claimed in claim 2, characterized in that an inlet pressure regulating valve (3) is arranged at the inlet of the primary separation surge tank (1).
4. The gas well continuous drainage and production device as claimed in claim 2, characterized in that an inlet ball valve (4) is arranged on a pipeline connecting the outlet of the primary separation surge tank (1) and the outlet of the secondary separation surge tank (2).
5. The gas well continuous drainage and production device as claimed in claim 2, characterized in that a pressure gauge and a thermometer are arranged on the primary separation surge tank (1) and the secondary separation surge tank (2).
6. Gas well continuous drainage and production device according to claim 1, characterized in that the pressurization system comprises a primary compressor (5), second grade compressor (6) and cooling fan (8), be equipped with one-level separation buffer tank (7) between one-level compressor (5) and second grade compressor (6), the entry linkage in the gas outlet of separation surge tank of one-level compressor (5), the exit linkage in the entry of one-level separation buffer tank (7) of one-level compressor (5), connecting tube sets up in cooling fan (8) one side between one-level compressor (5) and one-level separation buffer tank (7), the exit linkage in the entry of second grade compressor (6) of one-level separation buffer tank (7), the exit linkage of second grade compressor (6) has second grade separation buffer tank (10), second grade separation buffer tank (10) exit linkage in discharge line.
7. The gas well continuous drainage and production device as claimed in claim 2, wherein the liquid outlet of the primary separation surge tank (1) and the liquid outlet of the secondary separation surge tank (2) are both connected to the compressed liquid outlet of the pressure device, and a drainage check valve (9) is arranged on a drainage pipe connected with the pressure pump.
8. The gas well continuous discharge and production device as claimed in claim 1, characterized in that the pressure device comprises a hydraulic station (11), a hydraulic pump (12) and a hydraulic oil cylinder (13), wherein an inlet of the hydraulic pump (12) is connected to the hydraulic station (11), an outlet of the hydraulic pump (12) is connected to a piston of the hydraulic oil cylinder (13), a liquid outlet of the separation buffer tank is connected to an inlet of a liquid to be compressed of the hydraulic oil cylinder (13), a compressed liquid outlet of the hydraulic oil cylinder (13) is connected to a sewage discharge pipe, and reciprocating motion of the piston of the hydraulic oil cylinder (13) is controlled by the hydraulic station (11) and the hydraulic oil cylinder (12).
9. Gas well continuous drainage and production device according to claim 8, characterized in that the compressor is connected with a gas engine (15) through a transmission device (14), a gas inlet of the gas engine (15) is connected with a fuel washing tank (16), and an inlet of the fuel washing tank (16) is connected with a gas outlet of the separation surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940325.1U CN214403525U (en) | 2020-12-10 | 2020-12-10 | Gas well continuous drainage and production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022940325.1U CN214403525U (en) | 2020-12-10 | 2020-12-10 | Gas well continuous drainage and production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214403525U true CN214403525U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022940325.1U Active CN214403525U (en) | 2020-12-10 | 2020-12-10 | Gas well continuous drainage and production device |
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| Country | Link |
|---|---|
| CN (1) | CN214403525U (en) |
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- 2020-12-10 CN CN202022940325.1U patent/CN214403525U/en active Active
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