Well site type jet pump drainage gas recovery simulation experiment device

Abstract

The utility model relates to the field of jet pump drainage and gas production simulation experiments, and discloses a well site type jet pump drainage and gas production simulation experiment device, which comprises a jet pump, a gas-liquid separator and a control console, the jet pump is fixedly arranged in a simulation tubular column, and the jet pump comprises a liquid pressure chamber, a jet pump main body and a jet pump outlet cavity, the lower end of the liquid pressure chamber is fixedly connected with a liquid pipeline, the liquid pipeline penetrates through the simulation tubular column, the liquid pressure chamber is fixedly connected with one end of the jet pump main body, and the jet pump outlet cavity is fixedly connected with the other end of the jet pump main body. According to the utility model, the optimal data parameters are searched by adopting a simulation experiment and controlling and debugging various data in the experiment, meanwhile, the data parameters at the peak value of gas collection are searched by adopting the gas-liquid separation device to collect gas and comparing various parameters with the gas collection amount, and the device is relatively practical and suitable for wide popularization and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of jet pump drainage and gas production simulation experiments, in particular to a well field type jet pump drainage and gas production simulation experiment device. Background Art

[0002] During the development of gas wells (including shale gas wells), as the formation pressure decreases, fracturing fluid or formation water accumulates at the bottom of the well and affects the gas well production. When the water-gas ratio increases to a certain value, the gas production is not enough to bring the accumulated liquid out of the wellhead, resulting in a decrease in daily gas production. In order to resume production, a jet pump is needed to drain the liquid; however, the existing equipment cannot determine the parameters of the jet pump core, which affects the effect of the jet pump in draining the liquid.

[0003] Therefore, in order to ensure the efficient operation of the equipment, it is necessary to debug various data through simulation experiments in order to achieve the expected effect. Therefore, the inventors have introduced a well-site type jet pump drainage and gas production simulation experiment device. Utility Model Content

[0004] In order to solve the above technical problem that the parameters of the jet pump core cannot be determined, the basic concept of the technical solution adopted by the utility model is:

[0005] A well site type jet pump drainage and gas production simulation experimental device, comprising a jet pump, a gas-liquid separator and a control console, wherein the jet pump is fixedly installed inside a simulation pipe string, and the jet pump comprises a liquid pressure chamber, a jet pump body and a jet pump outlet chamber, wherein the lower end of the liquid pressure chamber is fixedly connected with a liquid pipeline, the liquid pipeline runs through the simulation pipe string, and the liquid pressure chamber is fixedly connected with one end of the jet pump body, the jet pump outlet chamber is fixedly connected with the other end of the jet pump body, and a jet pump outlet pressure gauge is fixedly installed at the upper end of the jet pump outlet chamber, and a gas pipeline is fixedly connected to the upper end of the jet pump body, and a gas-liquid mixing pressure gauge is fixedly connected to the upper end of the jet pump body;

[0006] The gas-liquid separator includes an outer shell and an isolation plate, the isolation plate is fixedly connected to the bottom of the outer shell, and the upper end of the outer shell is fixedly connected to an exhaust valve seat, the upper end of the exhaust valve seat is provided with an air outlet, and a sliding sleeve is fixedly connected to the inside of the exhaust valve seat, a lifting rod is movably sleeved inside the sliding sleeve, the upper end of the lifting rod is fixedly connected to a sealing plate, the upper surface of the sealing plate is fixedly connected to a sealing gasket, and the lower end of the lifting rod is fixedly connected to a buoyancy ball.

[0007] As a preferred embodiment of the utility model, a gas-liquid mixing conduit is fixedly connected to the left side of the lower end of the shell of the gas-liquid separator, and a liquid conduit is fixedly connected to the right side of the lower end of the shell of the gas-liquid separator, the other end of the gas-liquid mixing conduit is fixedly connected to a simulation column, and a column outlet pressure gauge is fixedly installed on the gas-liquid mixing conduit, the other end of the liquid conduit is fixedly connected to a plunger pump, and a second pneumatic valve is fixedly installed on the liquid conduit.

[0008] As a preferred embodiment of the utility model, the other end of the plunger pump is fixedly connected to a liquid flow meter through a pipeline, and a fourth pneumatic valve is fixedly installed on the pipeline between the plunger pump and the liquid flow meter, the other end of the liquid flow meter is fixedly connected to the other end of the liquid pipeline, and the liquid pipeline is fixedly installed with a first gas inlet pressure gauge and a third pneumatic valve in sequence from left to right.

[0009] As a preferred embodiment of the utility model, a gas flow meter is fixedly connected to the other end of the gas pipeline, and a second gas inlet pressure gauge and a one-way valve are fixedly installed on the gas pipeline from left to right in sequence, the other end of the gas flow meter is fixedly connected to a gas tank through a pipeline, and a first pneumatic valve is fixedly installed on the pipeline between the gas flow meter and the gas tank.

[0010] As a preferred embodiment of the utility model, a tank pressure gauge is fixedly connected to the gas tank, and the other end of the gas tank is fixedly connected to an air compressor through a pipeline.

[0011] As a preferred embodiment of the present utility model, the first pneumatic valve, the second pneumatic valve, the third pneumatic valve, the fourth pneumatic valve and the one-way valve are all electrically connected to the console and controlled by the console.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model adopts a simulation experiment to control and debug various data in the experiment to find the optimal data parameters, and at the same time adopts a gas-liquid separation device to collect gas, compares the gas collection amount with various parameters to find the data parameters when the gas collection reaches the peak value.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of equipment distribution of a well-site type jet pump drainage and gas production simulation experimental device;

[0017] Figure 2It is a cross-sectional schematic diagram of a jet pump of a well-site type jet pump drainage and gas production simulation experimental device;

[0018] Figure 3 It is a schematic diagram of a gas-liquid separation device of a well-site type jet pump drainage gas production simulation experimental device;

[0019] Figure 4 It is a flow chart of a well-site type jet pump drainage and gas production simulation experimental device;

[0020] In the figure: 1. air compressor; 2. gas tank; 3. tank pressure gauge; 4. first pneumatic valve; 5. gas flow meter; 6. second pneumatic valve; 7. second gas inlet pressure gauge; 8. gas-liquid separator; 9. column outlet pressure gauge; 10. simulated column; 11. one-way valve; 12. jet pump outlet pressure gauge; 13. gas-liquid mixing pressure gauge; 14. jet pump; 15. third pneumatic valve; 16. first gas inlet pressure gauge; 17. control console; 18. liquid flow meter; 19. fourth pneumatic valve; 20. plunger pump; 21. liquid pressure chamber; 22. gas pipeline; 23. jet pump outlet chamber; 24. liquid pipeline; 25. exhaust valve seat; 26. sealing gasket; 27. blocking plate; 28. sliding sleeve; 29. ​​lifting rod; 30. buoyancy ball; 31. isolation plate; 32. gas-liquid mixing conduit; 33. liquid conduit. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0022] like Figures 1 to 3 As shown, a well-site type jet pump drainage and gas production simulation experimental device comprises a jet pump 14, a gas-liquid separator 8 and a control console 17, the jet pump 14 is fixedly installed inside the simulation pipe string 10, and the jet pump 14 comprises a liquid pressure chamber 21, a jet pump body and a jet pump outlet chamber 23, the lower end of the liquid pressure chamber 21 is fixedly connected with a liquid pipeline 24, the liquid pipeline 24 runs through the simulation pipe string 10, and the liquid pressure chamber 21 is fixedly connected to one end of the jet pump body, the jet pump outlet chamber 23 is fixedly connected to the other end of the jet pump body, and the jet pump outlet pressure gauge 12 is fixedly installed on the upper end of the jet pump outlet chamber 23, and the upper end of the jet pump body is fixedly connected with a gas pipeline 22, and the upper end of the jet pump body is fixedly connected with a gas-liquid mixed pressure gauge 13;

[0023] The gas-liquid separator 8 includes an outer shell and an isolation plate 31, the isolation plate 31 is fixedly connected to the bottom of the outer shell, and the upper end of the outer shell is fixedly connected to an exhaust valve seat 25, the upper end of the exhaust valve seat 25 is provided with an air outlet, and the exhaust valve seat 25 is fixedly connected to a sliding sleeve 28, the sliding sleeve 28 is movably sleeved with a lifting rod 29, the upper end of the lifting rod 29 is fixedly connected to a sealing plate 27, the upper surface of the sealing plate 27 is fixedly connected to a sealing gasket 26, and the lower end of the lifting rod 29 is fixedly connected to a buoyancy ball 30.

[0024] In this setting, the utility model uses simulation experiments to control and debug various data in the experiment to find the optimal data parameters. At the same time, a gas-liquid separation device is used to collect gas, and the gas collection amount is compared with various parameters to find the data parameters when the gas collection reaches the peak value.

[0025] like Figures 1 to 3 As shown, in a specific embodiment, a gas-liquid mixing conduit 32 is fixedly connected to the left side of the lower end of the shell of the gas-liquid separator 8, and a liquid conduit 33 is fixedly connected to the right side of the lower end of the shell of the gas-liquid separator 8, the other end of the gas-liquid mixing conduit 32 is fixedly connected to a simulation column 10, and a column outlet pressure gauge 9 is fixedly installed on the gas-liquid mixing conduit 32, the other end of the liquid conduit 33 is fixedly connected to a plunger pump 20, and a second pneumatic valve 6 is fixedly installed on the liquid conduit 33.

[0026] In this arrangement, after the gas and liquid are mixed, they enter the gas-liquid separator 8 through the gas-liquid mixing conduit 32, and the gas and liquid will be stratified inside the gas-liquid separator 8. When the gas inside the gas-liquid separator 8 increases and the water level drops, the buoyancy ball loses its buoyancy support and falls down, and pulls the sealing plate 27 through gravity to open the opening of the exhaust valve seat 25 for exhaust. A conduit is connected to the upper end of the exhaust valve seat 25 to collect the gas and measure the volume. When the gas is emptied, the water level rises through the buoyancy ball 30 to lift the sealing plate 27 and block the outlet of the exhaust valve seat 25 to prevent liquid from entering the exhaust valve seat 25.

[0027] like Figures 1 to 3 As shown, in a specific embodiment, the other end of the plunger pump 20 is fixedly connected to the liquid flow meter 18 through a pipeline, and a fourth pneumatic valve 19 is fixedly installed on the pipeline between the plunger pump 20 and the liquid flow meter 18, and the other end of the liquid flow meter 18 is fixedly connected to the other end of the liquid pipeline 24, and the liquid pipeline 24 is fixedly installed with a first gas inlet pressure gauge 16 and a third pneumatic valve 15 in sequence from left to right.

[0028] In this configuration, liquid is added to the liquid pressure chamber 21 of the jet pump 14 through the plunger pump 20 to simulate the liquid discharge process.

[0029] like Figures 1 to 3As shown, in a specific embodiment, a gas flow meter 5 is fixedly connected to the other end of the gas pipeline 22, and a second gas inlet pressure gauge 7 and a one-way valve 11 are fixedly installed on the gas pipeline 22 from left to right in sequence, and the other end of the gas flow meter 5 is fixedly connected to a gas tank 2 through a pipeline, and a first pneumatic valve 4 is fixedly installed on the pipeline between the gas flow meter 5 and the gas tank 2.

[0030] In this setting, when using this device, gas is first added to the gas tank 2 through the air compressor 1, and then the gas is introduced into the jet pump 14 through the gas pipeline 22 to simulate the gas collection process.

[0031] like Figures 1 to 3 As shown, in a specific embodiment, a tank pressure gauge 3 is fixedly connected to the gas tank 2, and the other end of the gas tank 2 is fixedly connected to the air compressor 1 through a pipeline.

[0032] In this arrangement, gas is added to the gas tank 2 via the air compressor 1 .

[0033] like Figures 1 to 3 As shown, in a specific embodiment, the first pneumatic valve 4 , the second pneumatic valve 6 , the third pneumatic valve 15 , the fourth pneumatic valve and the one-way valve 11 are all electrically connected to the console 17 and controlled by the console 17 .

[0034] In this setting, the pressure of gas and liquid is controlled by pneumatic valves during this process, and the gas volume data collected by replacing jet pumps 14 of different specifications are compared to select the optimal parameter solution. The implementation principle of a well-site jet pump drainage and gas production simulation experimental device of this embodiment is as follows:

[0035] The utility model adopts a simulation experiment to control and debug various data in the experiment to find the optimal data parameters, and at the same time adopts a gas-liquid separation device to collect gas, and compares the gas collection amount with various parameters to find the data parameters when the gas collection reaches the peak value;

[0036] When using the device, first fill the gas tank 2 with gas through the air compressor 1, then pass the gas into the jet pump 14 through the gas pipeline 22 to simulate the gas collection process, and at the same time fill the liquid into the liquid pressure chamber 21 of the jet pump 14 through the plunger pump 20 to simulate the liquid discharge process. After the gas and liquid are mixed, they enter the gas-liquid separator 8 through the gas-liquid mixing conduit 32. The gas and liquid will be separated into layers inside the gas-liquid separator 8. When the gas inside the gas-liquid separator 8 increases and the water level drops, the buoyancy ball loses its buoyancy support and falls. , and pulls the sealing plate 27 by gravity to open the opening of the exhaust valve seat 25 for exhaust, and the upper end of the exhaust valve seat 25 is connected with a conduit to collect the gas and measure the volume. When the gas is exhausted, the water level rises and the buoyancy ball 30 rises to lift the sealing plate 27 and block the outlet of the exhaust valve seat 25 to prevent liquid from entering the exhaust valve seat 25. In this process, the pressure of the gas and liquid is controlled by the pneumatic valve, and the gas volume data collected by replacing the jet pump 14 of different specifications is compared to select the optimal parameter solution.

Claims

1. A well-site type jet pump drainage gas production simulation experimental device, comprising a jet pump (14), a gas-liquid separator (8) and a control console (17), characterized in that: The jet pump (14) is fixedly installed inside the simulation column (10), and the jet pump (14) comprises a liquid pressure chamber (21), a jet pump body and a jet pump outlet chamber (23); the lower end of the liquid pressure chamber (21) is fixedly connected to a liquid pipeline (24), the liquid pipeline (24) runs through the simulation column (10), and the liquid pressure chamber (21) is fixedly connected to one end of the jet pump body, the jet pump outlet chamber (23) is fixedly connected to the other end of the jet pump body, and a jet pump outlet pressure gauge (12) is fixedly installed on the upper end of the jet pump outlet chamber (23), and a gas pipeline (22) is fixedly connected to the upper end of the jet pump body, and a gas-liquid mixed pressure gauge (13) is fixedly connected to the upper end of the jet pump body; The gas-liquid separator (8) comprises an outer shell and an isolation plate (31), wherein the isolation plate (31) is fixedly connected to the inner bottom of the outer shell, and the upper end of the outer shell is fixedly connected to an exhaust valve seat (25), an air outlet is provided at the upper end of the exhaust valve seat (25), and a sliding sleeve (28) is fixedly connected inside the exhaust valve seat (25), and a lifting rod (29) is movably sleeved inside the sliding sleeve (28), the upper end of the lifting rod (29) is fixedly connected to a sealing plate (27), the upper surface of the sealing plate (27) is fixedly connected to a sealing gasket (26), and the lower end of the lifting rod (29) is fixedly connected to a buoyancy ball (30).

2. A well-site type jet pump drainage and gas production simulation experimental device according to claim 1, characterized in that: A gas-liquid mixing conduit (32) is fixedly connected to the left side of the lower end of the shell of the gas-liquid separator (8), and a liquid conduit (33) is fixedly connected to the right side of the lower end of the shell of the gas-liquid separator (8); the other end of the gas-liquid mixing conduit (32) is fixedly connected to a simulated pipe column (10), and a pipe column outlet pressure gauge (9) is fixedly installed on the gas-liquid mixing conduit (32); the other end of the liquid conduit (33) is fixedly connected to a plunger pump (20), and a second pneumatic valve (6) is fixedly installed on the liquid conduit (33).

3. A well-site type jet pump drainage and gas production simulation experimental device according to claim 2, characterized in that: The other end of the plunger pump (20) is fixedly connected to a liquid flow meter (18) via a pipeline, and a fourth pneumatic valve (19) is fixedly installed on the pipeline between the plunger pump (20) and the liquid flow meter (18). The other end of the liquid flow meter (18) is fixedly connected to the other end of a liquid pipeline (24), and the liquid pipeline (24) is fixedly installed with a first gas inlet pressure gauge (16) and a third pneumatic valve (15) in sequence from left to right.

4. A well-site type jet pump drainage and gas production simulation experimental device according to claim 1, characterized in that: The other end of the gas pipeline (22) is fixedly connected to a gas flow meter (5), and a second gas inlet pressure gauge (7) and a one-way valve (11) are fixedly installed on the gas pipeline (22) from left to right in sequence. The other end of the gas flow meter (5) is fixedly connected to a gas tank (2) via a pipeline, and a first pneumatic valve (4) is fixedly installed on the pipeline between the gas flow meter (5) and the gas tank (2).

5. A well-site type jet pump drainage and gas production simulation experimental device according to claim 4, characterized in that: The gas tank (2) is fixedly connected to a tank pressure gauge (3), and the other end of the gas tank (2) is fixedly connected to an air compressor (1) via a pipeline.

6. A well-site type jet pump drainage and gas production simulation experimental device according to claim 4, characterized in that: The first pneumatic valve (4), the second pneumatic valve (6), the third pneumatic valve (15), the fourth pneumatic valve and the one-way valve (11) are all electrically connected to the control console (17) and are controlled by the control console (17).

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