Gas well produced liquid transferring system and adjusting method

Abstract

The invention provides a gas well produced liquid transfer system which comprises a separation mechanism which comprises a separation chamber used for receiving fluid and a first outlet formed in the bottom end of the separation chamber; the gas blocking mechanism comprises a gas blocking chamber, a gas conveying pipeline and an inlet, the gas conveying pipeline is arranged at the top end of the gas blocking chamber and connected with the separation chamber, the inlet is formed in the bottom end of the gas blocking chamber, a liquid conveying pipeline is arranged between the first outlet and the inlet, and fluid in the gas blocking chamber can be subjected to gas-liquid separation under the action of gravity; the separated gas flows back to the separation chamber through the gas conveying pipeline, and the separated liquid is left in the gas blocking chamber. In addition, the invention further provides an adjusting method.

Description

Technical Field

[0001] The invention relates to the technical field of oil and natural gas exploitation, and in particular to a gas well produced liquid transfer system and a regulating method. Background Art

[0002] The produced liquid from natural gas wells needs to be transported to gas gathering stations and sewage treatment stations. After the produced liquid is separated in a single-well station, it is usually buffered in a sewage tank and then transferred to the downstream station by sewage trucks or pumping and pipe transportation. When the amount of produced liquid is large, a large number of sewage tanks need to be newly built in the single-well station, and a large number of sewage trucks need to be used to achieve transfer. The use of pumping and pipe transportation will greatly increase the construction, maintenance and operation costs of the pump. In addition, if the sewage transfer pipeline is directly connected from the separation device, gas cross-talk is very likely to occur during the discharge process of the separation device, resulting in overpressure in the back-end transfer pipeline and safety accidents.

[0003] In the prior art, anti-gas cross-talk devices mainly include mechanical, thermostatic and thermodynamic types. Among them, the working principle of the mechanical type is that a buffer / liquid accumulator is provided in the anti-gas cross-talk device, and the accumulated liquid in the buffer / liquid accumulator is used to provide buoyancy. The existence of the buffer / liquid accumulator changes the pressure of the drainage system, and the liquid transfer requires the use of a pump / cart, which is the current conventional mode. The thermostatic and thermodynamic types belong to the field of boiler steam, and use the phase change of steam in the steam pipe, from gas to liquid, and the performance difference before and after liquefaction to realize valve switching. It is not suitable for the working conditions where the original state of the produced fluid in the natural gas industry is gas and liquid.

[0004] Therefore, it is desired in the art to provide a gas well produced liquid transfer system to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a gas well produced liquid transfer system, which uses pressure and transfer pipelines to achieve efficient and low-cost transfer of produced liquid, and receives signals from different liquid level gauges to prompt the controller to make accurate judgments, and can also avoid the problem of overpressure in the rear transfer pipeline caused by cross-flow when the third valve is closed through a gas blocking mechanism. In addition, a regulation method is also provided.

[0006] According to a first aspect of the present invention, there is provided a gas well produced fluid transfer system, comprising a separation mechanism, which comprises a separation chamber for receiving fluid, and a first outlet arranged at the bottom end of the separation chamber;

[0007] The air blocking mechanism comprises an air blocking chamber, an air delivery pipeline arranged at the top of the air blocking chamber and connected to the separation chamber, and an inlet arranged at the bottom of the air blocking chamber.

[0008] Among them, a liquid infusion pipeline is provided between the first outlet and the inlet, and the fluid in the gas blocking chamber can be separated into gas and liquid under the action of gravity. The separated gas flows back to the separation chamber through the gas infusion pipeline, and the separated liquid remains in the gas blocking chamber.

[0009] In one embodiment, the air blocking mechanism includes a second outlet arranged at the bottom end of the air blocking chamber, a first liquid level gauge arranged at the lower end surface of the air blocking chamber, and a second liquid level gauge arranged at the upper end surface of the air blocking chamber, wherein the second outlet is connected to the processing station through a drainage pipe.

[0010] In one embodiment, the gas well produced liquid transfer system further includes a valve mechanism, which includes a first valve arranged on the liquid transfer pipeline, a second valve arranged on the gas transfer pipeline, and a third valve arranged on the liquid discharge pipe.

[0011] In one embodiment, a third liquid level gauge is provided on the separation chamber, and the height of the third liquid level gauge accounts for 1 / 5 of the height of the separation chamber.

[0012] In one embodiment, a height value of the second liquid level gauge is smaller than a height value of the third liquid level gauge.

[0013] In one embodiment, the gas well produced liquid transfer system further comprises a controller connected to the valve mechanism, wherein the controller is configured as follows:

[0014] When the first liquid level gauge detects that there is no liquid and the third liquid level gauge detects that there is liquid, the third valve can be closed and the first valve and the second valve can be opened to allow gas to flow from the blocking chamber to the separation chamber;

[0015] When the second liquid level gauge detects the presence of liquid and the fourth liquid level gauge detects the absence of liquid, the first valve and the second valve can be closed.

[0016] In one embodiment, a fourth liquid level gauge is provided on the separation chamber, and the height value of the fourth liquid level gauge is greater than the height value of the third liquid level gauge.

[0017] The controller is configured to open the first valve and the third valve upon receiving a liquid presence signal from a fourth liquid level gauge, so as to allow liquid to be discharged through the liquid delivery pipeline, the air blocking chamber and the liquid discharge pipe in sequence.

[0018] In one embodiment, a fifth liquid level gauge is provided on the separation chamber, and the height value of the fifth liquid level gauge is smaller than the height value of the third liquid level gauge.

[0019] The controller is configured to close the first valve and the third valve upon receiving a liquid-free signal from the fifth liquid level gauge.

[0020] According to a second aspect of the present invention, there is provided a regulation method using the gas well produced liquid transfer system as described above, comprising the following steps:

[0021] When the controller receives a liquid signal from the fourth liquid level gauge, the first valve and the third valve are opened to allow the liquid to be discharged through the liquid delivery pipeline, the air blocking chamber and the liquid discharge pipe in sequence;

[0022] When the liquid-free signal from the fifth liquid level gauge is received, the first valve and the third valve are closed.

[0023] In one embodiment, the anti-gas cross-talk step is included:

[0024] When the first liquid level gauge detects that there is no liquid and the third liquid level gauge detects that there is liquid, the controller is capable of closing the third valve and opening the second valve to allow gas to flow from the blocking chamber to the separation chamber;

[0025] When the second liquid level gauge detects the presence of liquid, the controller can close the first valve and the second valve.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] First, the present invention utilizes pressure and transfer pipelines to achieve efficient and low-cost transfer of produced liquid, and can prompt the controller to make accurate judgments by receiving signals from different liquid level gauges. That is, when the liquid level of the gas well produced liquid exceeds the highest liquid level (the fourth liquid level gauge), the first valve and the third valve are opened, and the pressure of the natural gas well is used as a driving force to prompt the liquid to be discharged through the first valve, the liquid transfer pipeline, the gas blocking chamber and the third valve in sequence, thereby achieving the purpose of intelligently and safely transferring the produced liquid using the natural gas pressure energy; when the liquid level of the gas well produced liquid is lower than the lowest liquid level (the fifth liquid level gauge), the third valve is closed to prevent gas from entering the liquid transfer pipeline.

[0028] Secondly, in order to prevent the back-end transfer pipeline from overpressure due to cross-flow when the third valve is closed, a gas blocking mechanism is provided. In the present invention, the gas in the gas blocking chamber gathers at the upper part to form a gas block, thereby preventing the gas well produced liquid from being transported outward, thereby achieving the purpose of intelligently and safely transferring the gas well produced liquid by utilizing the wellhead natural gas pressure.

[0029] In addition, when the first liquid level gauge detects that there is no liquid and the third liquid level gauge detects that there is liquid, the third valve can be closed and the first valve and the second valve can be opened through the controller to allow the gas in the gas blocking chamber to flow back to the separation chamber through the gas pipeline, thereby realizing natural gas recovery and avoiding releasing natural gas into the atmosphere, causing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings, in which:

[0031] Figure 1 The structure of the gas well produced liquid transfer system according to the present invention is schematically shown.

[0032] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0033] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all the embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0034] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the present invention, unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0036] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] Figure 1 The structure of a gas well produced liquid transfer system 100 according to the present invention is schematically shown.

[0039] like Figure 1 As shown, according to a first aspect of the present invention, a gas well produced liquid transfer system 100 is provided, which includes a separation mechanism. Preferably, the separation mechanism includes a separation chamber 10 for receiving fluid, a first outlet 11 disposed at the bottom end of the separation chamber 10, and an exhaust pipe 12 disposed at the top end of the separation chamber 10 and connected to the outside.

[0040] In the present invention, the fluid is a mixture of gas well production fluid and wellhead natural gas. Preferably, when the fluid is in the separation chamber 10, the gas well production fluid is gathered at the lower part of the separation chamber 10, while the wellhead natural gas is gathered at the upper part of the separation chamber 10.

[0041] According to the present invention, the gas well produced liquid transfer system 100 further includes a gas blocking mechanism. Figure 1 As shown, preferably, the air blocking mechanism includes an air blocking chamber 20, an air delivery pipe 32 arranged at the top of the air blocking chamber 20, and an inlet 21 arranged at the bottom of the air blocking chamber 20. The air blocking chamber 20 is connected to the separation chamber 10 through the air delivery pipe 32, so that the gas injected into the air blocking chamber 20 can be forced to flow back to the separation chamber 10 through the air delivery pipe 32, and the content is introduced below.

[0042] In one embodiment, Figure 1 As shown, a liquid infusion pipeline 31 is provided between the first outlet 11 of the separation chamber 10 and the inlet 21 of the air blocking chamber 20. Therefore, the fluid in the separation chamber 10 can enter the air blocking chamber 20 through the first outlet 11, the liquid infusion pipeline 31 and the inlet 21 in sequence, and the content thereof is described below.

[0043] According to a specific embodiment of the present invention, the fluid in the gas blocking chamber 20 can be separated into gas and liquid under the action of gravity, and the separated gas flows back to the separation chamber 10 through the gas pipeline 32, thereby realizing natural gas recovery and centralized treatment, so as to further ensure the environmental protection of the gas well production liquid transfer system 100; the separated liquid remains in the gas blocking chamber 20 and is adjusted in real time according to subsequent conditions.

[0044] In one embodiment, Figure 1 As shown, the air blocking mechanism further includes a second outlet 22 disposed at the bottom end of the air blocking chamber 20. Preferably, the second outlet 22 of the air blocking chamber 20 is connected to the processing station via a drain pipe 33, thereby ensuring that the liquid in the air blocking chamber 20 can be smoothly transferred to the processing station via the second outlet 22 and the drain pipe 33 in sequence. The processing station in the present invention includes a gas collection station or a sewage treatment station.

[0045] According to the present invention, the gas well produced liquid transfer system 100 further includes a valve mechanism. Figure 1 As shown, the valve mechanism includes a first valve 311 disposed on the liquid delivery pipeline 31 , a second valve 321 disposed on the gas delivery pipeline 32 , and a third valve 331 disposed on the liquid discharge pipe 33 .

[0046] In a preferred embodiment, the gas well produced liquid transfer system 100 further includes a controller 40 connected to the valve mechanism. Preferably, the controller 40 can control the opening and closing of the first valve 311, the second valve 321 and the third valve 331 respectively.

[0047] In one embodiment, Figure 1 As shown, the separation mechanism further includes a fourth liquid level gauge 102 disposed on the separation chamber 10. Preferably, the height of the fourth liquid level gauge 102 accounts for 2 / 5 of the height of the separation chamber 10. It is easy to understand that the fourth liquid level gauge 102 is the upper limit of the liquid storage in the separation chamber 10, that is, when this value is reached, liquid needs to be discharged in time to prevent liquid from overflowing the tower.

[0048] According to a specific embodiment of the present invention, the controller 40 is configured to simultaneously open the first valve 311 and the third valve 331 upon receiving a liquid signal from the fourth liquid level meter 102, thereby allowing the liquid in the separation chamber 10 to be discharged in sequence through the liquid infusion pipe 31, the air blocking chamber 20 and the drain pipe 33.

[0049] In one embodiment, Figure 1 As shown, the separation mechanism further includes a fifth liquid level gauge 103 disposed on the separation chamber 10 and below the fourth liquid level gauge 102. Preferably, the height of the fifth liquid level gauge 103 accounts for 1 / 10 of the height of the separation chamber 10. It is easy to understand that the fifth liquid level gauge 103 is the lower limit of the liquid storage of the separation chamber 10, that is, when this value is reached, the first valve 311 needs to be closed in time to prevent gas from entering the liquid delivery pipeline 31.

[0050] According to a specific embodiment of the present invention, the controller 40 is configured to close the first valve 311 and the third valve 331 upon receiving a liquid-free signal from the fifth liquid level gauge 103, thereby ensuring a minimum amount of liquid in the separation chamber 10 to prevent cross-gassing.

[0051] In the present invention, when the controller 40 receives the liquid-free signal from the fifth liquid level gauge 103, if the first valve 311 is not closed in time, the gas well production liquid transfer system 100 will be discharged faster, thereby causing the high-pressure gas in the separation chamber 10 to flow into the liquid delivery pipeline 31, causing the liquid delivery pipeline 31 to burst due to overpressure.

[0052] In order to prevent the gas in the fluid in the separation chamber 10 from entering the liquid delivery pipeline 31, the present invention has a first liquid level gauge 201 at the lower end surface of the gas blocking chamber 20, and a second liquid level gauge 202 at the upper end surface of the gas blocking chamber 20, and by receiving the liquid or liquid-free signals of the first liquid level gauge 201 and the second liquid level gauge 202, the gas is blocked in time, thereby improving the safety of the gas well production liquid transfer system 100.

[0053] Preferably, the internal space of the air blocking chamber 20 is larger than that of the liquid infusion pipeline 31. Therefore, when the fluid discharged from the first outlet 11 of the separation chamber 10 enters the air blocking mechanism through the first valve 311, the fluid can be separated into gas and liquid under the action of gravity, and the separated gas gathers in the upper part of the air blocking chamber 20, while the separated liquid gathers in the lower part of the air blocking chamber 20. Accordingly, when the interior of the air blocking chamber 20 is filled with gas, the compressibility of the gas is used to form a gas blockage on the liquid, thereby preventing the liquid from continuing to flow into the air blocking chamber 20 through the liquid infusion pipeline 31.

[0054] In one embodiment, Figure 1 As shown, a third liquid level gauge 101 is provided on the separation chamber 10. Preferably, the third liquid level gauge 101 is between the fourth liquid level gauge 102 and the fifth liquid level gauge 103, and the height of the third liquid level gauge 101 accounts for 1 / 5 of the height of the separation chamber 10. It is easy to understand that the third liquid level gauge 101 is the middle liquid level of the separation chamber 10, thereby achieving the purpose of exhaust gas retransmission of the gas blocking mechanism, so as to prevent the wellhead natural gas from being released into the atmosphere, thereby improving the environmental protection of the present invention.

[0055] In one embodiment, the height value of the second liquid level gauge 202 is smaller than the height value of the third liquid level gauge 101. Therefore, by comparing the detection conditions of the second liquid level gauge 202 and the third liquid level gauge 101, the actual conditions in the separation chamber 10 and the air blocking chamber 20 can be known, which helps the controller 40 to make accurate judgments and quickly issue execution commands.

[0056] In order to ensure that the liquid in the separation chamber 10 can continue to be discharged through the liquid infusion pipe 31, the gas in the gas blocking chamber 20 needs to be emptied. The specific operation process will be introduced below.

[0057] In the present invention, when the first liquid level gauge 201 detects that there is no liquid and the third liquid level gauge 101 detects that there is liquid, the third valve 331 is closed by the controller 40 to prevent the liquid from returning to the separation chamber 10 through the liquid delivery pipe 31, thereby ensuring the stability of the liquid in the liquid delivery pipe 31 and the gas blocking chamber 20. At the same time, the first valve 311 and the second valve 321 are opened to remove the gas in the gas blocking chamber 20 by the static pressure of the liquid, that is, the gas in the gas blocking chamber 20 flows back to the separation chamber 10 through the gas delivery pipe 32 under the action of the hydraulic pressure.

[0058] In the present invention, when the second liquid level gauge 202 detects the presence of liquid (the fourth liquid level gauge 102 detects the absence of liquid), the first valve 311 and the second valve 321 are closed by the controller 40. Thus, the separation chamber 10 will continue to receive the fluid until the fluid is higher than the fourth liquid level gauge 102, and then repeat the above-mentioned transfer of the gas well produced fluid.

[0059] In the present invention, liquid level gauges (third liquid level gauge 101, fourth liquid level gauge 102 and fifth liquid level gauge 103) at different heights are arranged on the air blocking chamber 20. By receiving signals (liquid or no liquid) from different liquid level gauges, the controller 40 is prompted to make accurate judgments.

[0060] When the liquid level of the gas well produced liquid exceeds the maximum liquid level (the fourth liquid level gauge 102), the first valve 311 and the third valve 331 are opened, and the pressure of the natural gas well in the separation chamber 10 is used as a driving force to cause the liquid to be discharged in sequence through the first valve 311, the liquid transfer pipeline 31, the gas blocking chamber 20 and the third valve 331, thereby achieving the purpose of intelligently and safely transferring the produced liquid using the natural gas pressure energy.

[0061] When the liquid level of the gas well produced fluid is lower than the minimum liquid level (fifth liquid level gauge 103), the third valve 331 is closed.

[0062] At the same time, in order to prevent the back-end transfer pipeline from overpressure due to gas cross-flow when the third valve 331 is closed, a gas blocking mechanism is provided after the first valve 311. In the gas blocking chamber 20, gas gathers at the upper part to form a gas block, thereby hindering the outward transmission of the gas well produced liquid.

[0063] According to a second aspect of the present invention, there is provided a regulation method using the gas well produced liquid transfer system as described above, comprising the following steps.

[0064] First, when receiving the liquid signal from the fourth liquid level meter 102, the first valve 311 and the third valve 331 are opened by the controller 40, thereby allowing the liquid to be discharged through the infusion pipeline 31, the air blocking chamber 20 and the discharge pipe 33 in sequence, so as to be smoothly transferred to the processing station.

[0065] Secondly, when the liquid-free signal of the fifth liquid level meter 103 is received, the first valve 311 and the third valve 331 are closed through the controller 40 to ensure the minimum liquid volume in the separation chamber 10 to prevent gas cross-talk, thereby improving the safety of the gas well production liquid transfer system 100.

[0066] In one embodiment, the above-mentioned adjustment method includes the step of preventing cross-gas:

[0067] First, when the first liquid level gauge 201 detects that there is no liquid and the third liquid level gauge 101 detects that there is liquid, the third valve 331 is closed by the controller 40 to prevent the liquid from returning to the separation chamber 10 through the liquid infusion pipe 31, thereby ensuring the stability of the liquid in the liquid infusion pipe 31 and the gas blocking chamber 20; the first valve 311 and the second valve 321 are opened by the controller 40 to allow the gas injected into the gas blocking chamber 20 to flow back to the separation chamber 10 from the gas blocking chamber 20 through the gas pipeline 32, that is, the gas in the gas blocking chamber 20 flows back to the separation chamber 10 through the gas pipeline 32 under the action of the hydraulic pressure.

[0068] Then, when the second liquid level gauge 202 detects the presence of liquid (the fourth liquid level gauge 102 detects the absence of liquid), the first valve 311 and the second valve 321 are closed by the controller 40. Thus, the separation chamber 10 will continue to receive the fluid until the fluid is higher than the fourth liquid level gauge 102, and then repeat the above-mentioned transfer of the gas well produced fluid.

[0069] Compared with the prior art, the advantages of the present invention are:

[0070] First, the present invention utilizes pressure and transfer pipelines to achieve efficient and low-cost transfer of produced liquid, and can prompt the controller 40 to make accurate judgments by receiving signals from different liquid level gauges. That is, when the liquid level of the gas well produced liquid exceeds the highest liquid level (the fourth liquid level gauge 102), the first valve 311 and the third valve 331 are opened, and the pressure of the natural gas well is used as a driving force to cause the liquid to be discharged through the first valve 311, the liquid delivery pipeline 31, the gas blocking chamber 20 and the third valve 331 in sequence, thereby achieving the purpose of intelligently and safely transferring the produced liquid using the natural gas pressure energy; when the liquid level of the gas well produced liquid is lower than the lowest liquid level (the fifth liquid level gauge 103), the third valve 331 is closed to prevent gas from entering the liquid delivery pipeline 31.

[0071] Second, in order to prevent the back-end transfer pipeline from overpressure due to cross-flow when the third valve 331 is closed, a gas blocking mechanism is provided. In the present invention, the gas in the gas blocking chamber 20 gathers at the upper part to form a gas block, thereby preventing the gas well produced liquid from being transported outward, thereby achieving the purpose of intelligently and safely transferring the gas well produced liquid by utilizing the wellhead natural gas pressure.

[0072] In addition, when the first liquid level meter 201 detects that there is no liquid and the third liquid level meter 101 detects that there is liquid, the third valve 331 can be closed and the first valve 311 and the second valve 321 can be opened through the controller 40 to allow the gas in the gas blocking chamber 20 to flow back to the separation chamber 10 through the gas pipeline 32, so as to further increase the head of the produced liquid and achieve the purpose of pipeline transportation.

[0073] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art can easily make changes or modifications within the disclosure scope of the present invention, and such changes or modifications should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A gas well produced liquid transfer system, include: A separation mechanism comprising a separation chamber (10) for receiving a fluid, and a first outlet (11) arranged at the bottom end of the separation chamber (10); The air blocking mechanism comprises an air blocking chamber (20), an air delivery pipeline (32) arranged at the top end of the air blocking chamber (20) and connected to the separation chamber (10), and an inlet (21) arranged at the bottom end of the air blocking chamber (20). A liquid delivery pipeline (31) is provided between the first outlet (11) and the inlet (21), and the fluid in the gas blocking chamber (20) can be separated into gas and liquid under the action of gravity, and the separated gas flows back to the separation chamber (10) through the gas delivery pipeline (32), and the separated liquid remains in the gas blocking chamber (20).

2. The gas well produced liquid transfer system according to claim 1, It is characterized in that The gas blocking mechanism comprises a second outlet (22) arranged at the bottom end of the gas blocking chamber (20), a first liquid level gauge (201) arranged at the lower end surface of the gas blocking chamber (20), and a second liquid level gauge (202) arranged at the upper end surface of the gas blocking chamber (20), wherein the second outlet (22) is connected to the processing station via a drain pipe (33).

3. The gas well produced liquid transfer system according to claim 2, It is characterized in that The gas well produced liquid transfer system further comprises a valve mechanism, wherein the valve mechanism comprises a first valve (311) arranged on the liquid transfer pipeline (31), a second valve (321) arranged on the gas transfer pipeline (32), and a third valve (331) arranged on the liquid discharge pipe (33).

4. The gas well produced liquid transfer system according to claim 3, It is characterized in that A third liquid level gauge (101) is provided on the separation chamber (10), and the height of the third liquid level gauge (101) accounts for 1 / 5 of the height of the separation chamber (10).

5. The gas well produced liquid transfer system according to claim 4, It is characterized in that The height value of the second liquid level gauge (202) is smaller than the height value of the third liquid level gauge (101).

6. The gas well produced liquid transfer system according to claim 5, It is characterized in that The gas well produced liquid transfer system further comprises a controller (40) connected to the valve mechanism, wherein the controller is configured as follows: When the first liquid level meter (201) detects that there is no liquid and the third liquid level meter (101) detects that there is liquid, the third valve (331) can be closed and the first valve (311) and the second valve (321) can be opened to allow gas to flow from the gas blocking chamber (20) to the separation chamber (10); When the second liquid level meter (202) detects the presence of liquid, the first valve (311) and the second valve (321) can be closed.

7. The gas well produced liquid transfer system according to claim 6, It is characterized in that A fourth liquid level gauge (102) is provided on the separation chamber (10), and a height value of the fourth liquid level gauge (102) is greater than a height value of the third liquid level gauge (101). The controller is configured to open the first valve (311) and the third valve (331) upon receiving a liquid presence signal from the fourth liquid level meter (102), so as to allow liquid to be discharged through the liquid delivery pipeline (31), the air blocking chamber (20) and the liquid discharge pipe (33) in sequence.

8. The gas well produced liquid transfer system according to claim 7, It is characterized in that A fifth liquid level gauge (103) is provided on the separation chamber (10), and a height value of the fifth liquid level gauge (103) is smaller than a height value of the third liquid level gauge (101). The controller is configured to close the first valve (311) and the third valve (331) upon receiving a liquid-free signal from the fifth liquid level gauge (103).

9. A method for regulating the gas well produced liquid transfer system according to any one of claims 1 to 8, comprising the following steps: When the controller receives a liquid presence signal from the fourth liquid level meter (102), the first valve (311) and the third valve (331) are opened to allow the liquid to be discharged through the liquid delivery pipeline (31), the air blocking chamber (20) and the liquid discharge pipe (33) in sequence; When the liquid-free signal from the fifth liquid level gauge (103) is received, the first valve (311) and the third valve (331) are closed.

10. The adjustment method according to claim 9, It is characterized in that Including anti-gas steps: When the first liquid level meter (201) detects that there is no liquid and the third liquid level meter (101) detects that there is liquid, the controller is capable of closing the third valve (331) and opening the first valve (311) and the second valve (321) to allow gas to flow from the gas blocking chamber (20) to the separation chamber (10); When the second liquid level meter (202) detects the presence of liquid, the controller can close the first valve (311) and the second valve (321).

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