Automatic filling device for gas well

Abstract

The present invention discloses an automatic gas well filling device, belonging to the field of mine filling devices. An automatic gas well filling device comprises a gas well pipe, the gas well pipe is connected to an oil pipe head, and also comprises: a filling tank body, the liquid outlet end of the filling tank body is connected to a filling pipe, the filling pipe is provided with an electronic valve, and the filling tank body is filled with a foaming agent; a pressure sensor, connected to the oil pipe head, used to monitor the air pressure in the gas well pipe and control the amount of the foaming agent in the filling tank body discharged through the filling pipe; an outer ring, slidably connected to the gas well pipe; a storage cavity, arranged in the outer ring, the storage cavity is connected to a liquid discharge port and a liquid inlet, and a control valve is provided in the liquid discharge port and the liquid inlet; the present invention avoids the loss of the foaming agent by arranging a storage cavity for storing the foaming agent in the outer ring, so that the foaming agent is completely in contact with the liquid, which is convenient for the discharge of the liquid, reduces the reduction of the mine production caused by the accumulation of the liquid, and is convenient for the use of mine filling.

Description

Technical Field

[0001] The invention belongs to the technical field of mine filling devices, and in particular relates to an automatic gas well filling device. Background Art

[0002] There are a lot of liquids in natural gas wells. Under normal circumstances, these liquids are brought to the ground in the form of mist by the produced natural gas. When the gas reservoir pressure is depleted, the gas flow rate in the gas well will decrease, resulting in a decrease in the liquid carrying capacity of natural gas. When the gas flow rate drops to a critical speed, these liquids will accumulate at the bottom of the gas well. These accumulated liquids will increase the bottom hole pressure, causing a decrease in gas well production. The decrease in gas well production will further reduce the gas flow rate. When the bottom hole pressure exceeds the gas reservoir pressure, the gas well will stop production.

[0003] At present, surfactants that can produce foam when in contact with water, i.e. foaming agents, are injected into the bottom of the well. After coming into contact with the water at the bottom of the well, the surface tension of the water can be greatly reduced. With the help of the stirring of the natural gas flow, the water can be dispersed and a large amount of low-density water-containing foam can be generated, thereby changing the gas-water flow state in the wellbore. In this way, under the condition of unchanged formation energy, the water-carrying capacity of the gas well can be greatly improved, the formation water can be lifted to the ground, and the natural gas production can be increased.

[0004] The existing automatic filling device for gas wells, such as the patent application number CN202310576902.9, is named as an invention patent for an automatic filling device for gas wells, which relates to the field of natural gas extraction technology. An automatic filling device for gas wells includes a filling box; a plugging assembly, which is arranged at the bottom of the filling box; a connecting pipe, which is arranged at the bottom of the filling box; a locking and pushing assembly, which is arranged at the connecting pipe, and its movable upper end is hinged with the lower end of the plugging assembly. The locking and pushing assembly includes: two baffle assemblies, which are symmetrically arranged, one end is respectively hinged with the inner wall of the connecting pipe, and the other end is overlapped; two elastic members, which are symmetrically arranged, the lower ends of which are respectively hinged with the baffles on the same side, and the upper ends are respectively hinged with the inner wall of the connecting pipe; two connecting rods, the lower ends of which are hinged with the top of the baffles on the same side, and the upper ends are hinged with the bottom of the plugging assembly. According to the pressure in the gas well, the opening degree of the plugging assembly is controlled, and the dosage of the injection agent is controlled.

[0005] When the above-mentioned device is in use, by dripping the foaming agent liquid into the liquid at the bottom of the well, there is a situation where part of the liquid is carried away by the airflow in the well. At this time, these foaming agents will not be able to completely contact the liquid at the bottom of the well, and the liquid at the bottom of the well cannot be completely discharged. Some liquid will still remain, and the residue of these liquids will affect the flow of gas, and then affect the output of the mine, which has certain shortcomings. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a mine filling device that can overcome the above problems or at least partially solve the above problems.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: an automatic gas well filling device, including a gas well pipe, the gas well pipe is connected to an oil pipe head, and also includes: a filling tank body, the liquid outlet end of the filling tank body is connected to a filling pipe, the filling pipe is provided with an electronic valve, and the filling tank body is filled with a foaming agent; a pressure sensor, connected to the oil pipe head, for monitoring the gas pressure in the gas well pipe and controlling the amount of the foaming agent in the filling tank body discharged through the filling pipe; an outer ring, slidably connected to the gas well pipe, and an outer ring, which is connected to the gas well pipe. The well pipe has a storage cavity arranged in the outer ring, the storage cavity is connected with a liquid discharge port and a liquid inlet, both of which are provided with control valves, the liquid inlet matches the filling pipe, when the outer ring moves upward, the liquid inlet will dock with the filling pipe, and then the liquid in the filling pipe is injected into the storage cavity; multiple groups of airbags are installed in the outer ring, the airbags are inflatable airbags; the gas filling assembly is used to inject helium into the airbags, so that the outer ring moves upward in the well pipe under the pull of the upward buoyancy.

[0008] Furthermore, the gas filling assembly includes a helium tank, an air pump, and an air outlet pipe. The air inlet end and the air outlet end of the air pump are respectively connected to the helium tank and the air outlet pipe. The air pump is used to extract the helium in the helium tank and discharge it into the air outlet pipe. The air outlet pipe is connected to the airbag and is used to inject helium into the airbag.

[0009] Furthermore, a rotating ring is rotatably connected inside the outer ring, and the airbag is installed on the rotating ring. A cavity is provided inside the outer ring, and the cavity is connected with the air outlet pipe. An air inlet pipe port is provided on the airbag, and the air inlet pipe port passes through the rotating ring and is connected with the cavity. When the air outlet pipe injects helium into the cavity, the helium will enter the airbag through the air inlet pipe port.

[0010] In order to increase the expansion space of the airbag and increase the contact area with the external airflow to facilitate rising, further, the rotating ring is provided with hollow grooves at equal intervals in a ring shape, and a plurality of mounting grooves are provided on the rotating ring. The plurality of airbags are installed in the mounting grooves of the rotating ring at equal intervals, and after the airbag is inflated, the mounting grooves and the hollow grooves are filled.

[0011] Furthermore, the airbag is provided with a plurality of exhaust ports, and the exhaust ports are provided with control valves for exhausting the gas in the airbag.

[0012] In order to facilitate the conversion of accumulated water into smaller water droplets and then discharge them when the pressure is low, the exhaust port is further arranged on one end of the airbag close to the outer ring, and when multiple groups of exhaust ports are exhausted, the rotating ring can rotate inside the outer ring through the airflow.

[0013] In order to ensure that the outer ring slides stably in the gas well pipe, a protection pipe is fixedly connected to the gas well pipe, and a groove matching the protection pipe is provided on the outer ring. The protection pipe is used to limit the outer ring from sliding stably in the gas well pipe.

[0014] Furthermore, the air outlet pipe is located in the protection tube, and the air outlet pipe is a telescopic hose.

[0015] Furthermore, a plurality of water diversion grooves are arranged on the rotating ring, and when the rotating ring rotates, the accumulated water can be guided upward through the water diversion grooves to become smaller water droplets.

[0016] Furthermore, the oil pipe head is provided with an equipment pipe, the equipment pipe is provided with a sealing cover, the pressure sensor is installed on the sealing cover, and the pressure sensor, the filling pipe and the air outlet pipe all penetrate the sealing cover on the equipment pipe and enter the gas well pipe.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention avoids the loss of the foaming agent by setting a storage chamber for storing the foaming agent inside the outer ring, so that the foaming agent is in complete contact with the liquid, which is convenient for the discharge of the liquid, reduces the reduction of mine production caused by the accumulation of liquid, and is convenient for the use of mine filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 A schematic diagram of the structure of a gas well automatic filling device proposed by the present invention Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of a gas well automatic filling device proposed by the present invention Figure 2 ;

[0021] Figure 3 A gas well automatic filling device proposed by the present invention Figure 2 The structural diagram of part A in the figure;

[0022] Figure 4 A gas well automatic filling device proposed by the present invention Figure 2 The structural diagram of part B;

[0023] Figure 5 A schematic diagram of the structure of the outer ring and rotating ring in a gas well automatic filling device proposed by the present invention Figure 1 ;

[0024] Figure 6 A schematic diagram of the structure of the outer ring and rotating ring in a gas well automatic filling device proposed by the present invention Figure 2 ;

[0025] Figure 7 A gas well automatic filling device proposed by the present invention Figure 6 Schematic diagram of the structure of part C;

[0026] Figure 8 This is a cross-sectional schematic diagram of components such as an outer ring and a rotating ring in a gas well automatic filling device proposed by the present invention;

[0027] Fig. 9 This is a schematic diagram of the structure of the connection between the outer ring rising liquid inlet and the filling pipe in the automatic filling device for gas wells proposed by the present invention;

[0028] Fig.10 A gas well automatic filling device proposed by the present invention Fig. 9 The structural diagram of the D part;

[0029] Fig.11 The present invention provides a schematic cross-sectional view of a protective pipe and a gas outlet pipe in a gas well automatic filling device.

[0030] In the figure: 101, gas well pipe; 102, tubing head; 103, suction pipe; 104, gas transmission pipe; 105, equipment pipe; 106, pressure sensor; 201, filling tank; 202, filling pipe; 301, helium tank; 302, air pump; 303, air outlet pipe; 304, protection pipe; 4, outer ring; 401, cavity; 402, rotating ring; 403, water diversion groove; 404, installation groove; 405, storage cavity; 406, liquid discharge port; 407, liquid inlet port; 501, air bag; 502, exhaust port; 503, air inlet pipe port. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention. Example 1

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Fig. 9, an automatic gas well filling device, including a gas well pipe 101, a liquid suction pipe 103, and a gas transmission pipe 104, the gas well pipe 101 is connected to an oil pipe head 102, the liquid suction pipe 103 and the gas transmission pipe 104 are installed on the oil pipe head 102, the gas transmission pipe 104 is used to transport the natural gas in the gas well pipe 101 to the outside, the liquid suction pipe 103 is used in an emergency to physically suck away the oil-water mixture accumulated in the gas well pipe 101 to avoid blockage, and also includes: a filling tank 201, The filling tank body 201 is a tank with a pump body that can accurately discharge the internal liquid. The liquid outlet of the filling tank body 201 is connected to a filling pipe 202, and an electronic valve is arranged in the filling pipe 202. The filling tank body 201 is filled with a foaming agent; the pressure sensor 106 is connected to the oil pipe head 102, and is used to monitor the air pressure in the gas well pipe 101 and control the amount of the foaming agent in the filling tank body 201 discharged through the filling pipe 202; the outer ring 4 is slidably connected in the gas well pipe 101; the storage cavity 405, arranged in the outer ring 4, the storage chamber 405 is connected with a liquid discharge port 406 and a liquid inlet 407, both of which are provided with control valves, and the liquid inlet 407 matches the filling pipe 202. When the outer ring 4 moves upward, the liquid inlet 407 will dock with the filling pipe 202, so that the liquid in the filling pipe 202 is injected into the storage chamber 405; multiple groups of airbags 501, all installed in the outer ring 4, the airbags 501 are inflatable airbags; the filling group The gas filling assembly comprises a helium tank 301, an air pump 302 and an air outlet pipe 303. The air inlet end and the air outlet end of the air pump 302 are respectively connected to the helium tank 301 and the air outlet pipe 303. The air pump 302 is used to extract the helium in the helium tank 301 and discharge it into the air outlet pipe 303. The air outlet pipe 303 is connected to the air bag 501 and is used to inject helium into the air bag 501.

[0033] The outer ring 4 and its internal components in the device can be made of carbon fiber, which is light in weight, high in strength, and has excellent properties such as corrosion resistance. However, it should not be too light, otherwise it may be directly blown to the top by the airflow in the gas well pipe 101.

[0034] When using it, Figure 2 During installation, the outer ring 4 is located at the bottom of the gas well pipe 1 under natural conditions. During normal use, the gas will be naturally discharged through the gas transmission pipe 104 under the action of air pressure. However, there will be a certain amount of water vapor in the gas transmission. Under the combined action of various factors, part of the water vapor will condense into water droplets and eventually accumulate at the bottom of the gas well pipe 101. At this time, as the number of water droplets increases, these water droplets will accumulate into liquid and eventually gather at the bottom of the gas well. These accumulated liquids will increase the bottom hole pressure, causing the gas well production to decrease. The decrease in gas well production will further reduce the gas flow rate. When the bottom hole pressure exceeds the gas reservoir pressure, the gas well will stop production.

[0035] At this time, the pressure sensor 4 can be used to continuously monitor the pressure change in the gas well pipe 1. If the pressure gradually rises and reaches the blockage standard, helium can be injected into the airbag 501 through the gas filling device, so that the initially shrunk airbag 501 is filled with helium and then expands. At this time, the expansion of the airbag 501 will bring a force for the outer ring 4 to rise. Since there is still a certain amount of gas in the gas well pipe 1 at this time and it is transported away through the gas pipe 104, with the assistance of these airflows, the outer ring 4 will rise faster until it comes to the vicinity of the oil pipe head 102. At this time, the liquid inlet 407 on the outer ring 4 will contact the filling pipe 202, and then the control valves and electronic valves of the two will be opened. Whether there is contact can be determined by adding a distance sensor or a contact sensor, so that the foaming agent in the filling pipe 202 enters the storage chamber 405. The specific injection amount is determined by the pressure felt by the pressure sensor 106 and the actual added product. The air pump 302 can be closed after injecting a suitable amount of gas, and the air pump 302 can be selected to back-pump to re-inject the helium in the airbag 501 into the helium tank 301. At this time, the helium in the airbag 501 gradually decreases, and the outer ring 3 is affected and will move down quickly, and finally return to the bottom of the gas well pipe 1 to contact the water at the bottom of the gas well pipe 1. The impact of the fall will cause a part of the liquid to be impacted into the air and then carried away by the airflow. At this time, the control valve of the discharge port 406 can be opened to allow the foaming agent in the storage chamber 405 to contact the external liquid. Under the action of the foaming agent, a large number of bubbles will appear on the surface of the liquid, and the filling of the gas is completed, so that the discharged foaming agent can be in good contact with the water, and the situation that the foaming agent is blown away with the airflow can be avoided. Specifically, the discharge port 406 can be provided in multiple groups, or the bottom of the storage chamber 405 can be provided with a funnel shape to facilitate the discharge of the liquid and the use.

[0036] Among them, in order to further facilitate the discharge of the foaming agent in the storage chamber 405, when it falls into the water below, the control valve in the liquid inlet 407 can be opened, which is convenient for the contact between the foaming agent and the external liquid. At this time, there is a situation where liquid enters the storage chamber 405. When the outer ring 4 moves upward under the action of the airbag 501, the drain pipe 406 and the control valve in the liquid inlet 407 are opened to facilitate the discharge of the residual liquid inside through the drain port 406. After reaching the top, the control valve in the drain pipe 406 below is closed.

[0037] When a sudden blowout occurs or the pressure is too high, the liquid suction pipe 103 needs to suck out the internal liquid mixture by physical extraction to avoid accidents. Example 2

[0038] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , an automatic filling device for a gas well, which is basically the same as Example 1, and further includes: a rotating ring 402 is rotatably connected inside an outer ring 4, an airbag 501 is installed on the rotating ring 402, a cavity 401 is arranged inside the outer ring 4, the cavity 401 is communicated with an air outlet pipe 303, an air inlet port 503 is arranged on the airbag 501, the air inlet port 503 penetrates the rotating ring 402, and is communicated with the cavity 401, when the air outlet pipe 303 injects helium into the cavity 401, the helium will enter the airbag 501 through the air inlet port 503, hollow grooves are arranged in annular shape at equal intervals on the rotating ring 402, a plurality of groups of mounting grooves 404 are arranged on the rotating ring 402, a plurality of groups of airbags 501 are evenly spacedly installed in the mounting grooves 404 of the rotating ring 402, and after the airbags 501 are inflated, the mounting grooves 404 and the hollow grooves are filled.

[0039] By setting up the hollow slots, during daily use, the obstruction to the airflow can be reduced, allowing the airflow to pass smoothly and facilitating the discharge of gas. At the same time, when the airbag 501 is subsequently inflated, a part of the slots can be filled, thereby increasing the contact area with the airflow. Under the action of the buoyancy of the airbag 501 itself and the impact of the external airflow, the outer ring 4 will move to the top faster, facilitating subsequent filling.

[0040] The gap between the cavity 401 and the rotating ring 402 needs to be sealed to avoid gas leakage. Specifically, a sealing gasket can be provided between the rotating ring 402 and the outer ring 4 . Example 3

[0041] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , an automatic filling device for a gas well, which is basically the same as Example 2, and further: a plurality of exhaust ports 502 are provided on the airbag 501, and a control valve is provided in the exhaust port 502 to discharge the gas in the airbag 501, and the exhaust port 502 is provided on one end of the airbag 501 close to the outer ring 4, and when the plurality of exhaust ports 502 are exhausted, the rotating ring 402 can be rotated in the outer ring 4 through the airflow.

[0042] By setting an exhaust port 502 on the airbag 501, during daily use, the helium in the helium tank 301 can be extracted through the air pump 302, and the control valve in the exhaust port 502 can be opened. At this time, the rotating ring 4 will rotate under the action of the airflow generated by the airbag 501. The rotation at this time will have a stirring effect on the external liquid to form a vortex flow. At this time, the liquid level at the center of the vortex is lower, and there is a situation where a large amount of gas is discharged through the middle area, which will carry a large amount of surrounding liquid away, which can reduce the amount of liquid and reduce the use of foaming agent to a certain extent.

[0043] During the filling process, a foaming agent may be added in conjunction with the rotation of the rotating ring 402 , thereby causing bubbles to be generated quickly, thereby reducing the amount of liquid in the gas well pipe 101 . Example 4

[0044] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , an automatic gas well filling device, which is basically the same as Example 3, and further: a protective tube 304 is fixedly connected inside the gas well pipe 101, and a groove matching the protective tube 304 is provided on the outer ring 4, and the protective tube 304 is used to limit the outer ring 4 to stably slide inside the gas well pipe 101, and the outlet pipe 303 is located inside the protective tube 304, and the outlet pipe 303 is an elastic telescopic hose arranged in a spiral shape, and has excellent reset ability, and multiple groups of water diversion grooves 403 are provided on the rotating ring 402. When the rotating ring 402 rotates, the accumulated water can be guided to the top through the water diversion grooves 403 to become smaller water drops, and an equipment pipe 105 is provided on the oil pipe head 102, and a sealing cover is provided on the equipment pipe 105, and a pressure sensor 106 is installed on the sealing cover, and the pressure sensor 106, the filling pipe 202, and the outlet pipe 303 all penetrate the sealing cover on the equipment pipe 105 and enter the gas well pipe 101.

[0045] By setting the protective tube 304, the outer ring 3 can be stably moved up and down, which is convenient for docking the filling pipe 202 with the liquid inlet 407. The protective tube 304 is a hard tube that can be made of carbon fiber, and the air outlet pipe 303 is set as a hose. One end of the air outlet pipe 303 is spirally set and is usually contracted in the protective tube 304, and the outermost end of the spiral is against the inner wall of the protective tube 304. When the outer ring 4 moves upward, the air outlet pipe 303 that is spirally contracted in the protective tube 304 will gradually stretch into a straight line. When the outer ring 4 falls, the air outlet pipe 303 will quickly reset and return to the original spiral shape, which is convenient for subsequent use.

[0046] The setting of the water trough 403 allows part of the water to flow upward along the drinking trough 403 when the rotating ring 402 rotates. At this time, it should be noted that there needs to be a certain amount of helium inside the airbag 501, which will make the outer ring 4 and the rotating ring 4 close to or float on the liquid surface.

[0047] The present invention sets a storage chamber 405 for storing the foaming agent in the outer ring 4 to avoid the loss of the foaming agent, so that the foaming agent is completely in contact with the liquid, which is convenient for the discharge of the liquid, reduces the reduction of mine production caused by the accumulation of liquid, and is convenient for mine filling.

[0048] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. An automatic gas well filling device, comprising a gas well pipe (101), to which a tubing head (102) is connected, characterized in that: Also includes: A filling tank body (201), a filling pipe (202) connected to a liquid outlet end of the filling tank body (201), an electronic valve provided in the filling pipe (202), and a foaming agent in the filling tank body (201); a pressure sensor (106) connected to the oil pipe head (102) and used for monitoring the air pressure in the gas well pipe (101) and controlling the amount of the foaming agent in the filling tank body (201) discharged through the filling pipe (202); an outer ring (4) slidably connected in the gas well pipe (101); and a storage chamber (405) provided in the outer ring (4). The storage cavity (405) is connected with a liquid discharge port (406) and a liquid inlet (407), and control valves are provided in the liquid discharge port (406) and the liquid inlet (407). The liquid inlet (407) matches the filling pipe (202). When the outer ring (4) moves upward, the liquid inlet (407) will dock with the filling pipe (202), thereby allowing the liquid in the filling pipe (202) to be injected into the storage cavity (405); multiple groups of air bags (501) are installed in the outer ring (4), and the air bags (501) are inflatable air bags; aeration components, The gas filling assembly comprises a helium tank (301), an air pump (302), and an air outlet pipe (303). The air inlet end and the air outlet end of the air pump (302) are respectively connected to the helium tank (301) and the air outlet pipe (303). The air pump (302) is used to extract the helium in the helium tank (301) and discharge it into the air outlet pipe (303). The air outlet pipe (303) is connected to the air bag (501) and is used to inject helium into the air bag (501). The outer ring (4) is rotatably connected to a rotating ring (402), the airbag (501) is mounted on the rotating ring (402), a cavity (401) is arranged in the outer ring (4), the cavity (401) is communicated with the air outlet pipe (303), an air inlet pipe opening (503) is arranged on the airbag (501), the air inlet pipe opening (503) passes through the rotating ring (402) and is communicated with the cavity (401), when the air outlet pipe (303) injects helium into the cavity (401), the helium will enter the airbag (501) through the air inlet pipe opening (503).

2. The automatic gas well filling device according to claim 1, characterized in that: The rotating ring (402) is provided with hollow grooves at equal intervals in an annular shape. The rotating ring (402) is provided with a plurality of groups of mounting grooves (404). The plurality of groups of airbags (501) are installed at equal intervals in the mounting grooves (404) of the rotating ring (402). After the airbags (501) are inflated, they fill the mounting grooves (404) and the hollow grooves.

3. The automatic gas well filling device according to claim 2, characterized in that: The airbag (501) is provided with a plurality of exhaust ports (502), and the exhaust ports (502) are provided with control valves for exhausting the gas in the airbag (501).

4. The automatic gas well filling device according to claim 3, characterized in that: The exhaust port (502) is arranged on one end of the air bag (501) close to the outer ring (4), and when multiple groups of exhaust ports (502) are exhausted, the rotating ring (402) can be caused to rotate inside the outer ring (4) by airflow.

5. The automatic gas well filling device according to claim 1, characterized in that: A protective tube (304) is fixedly connected inside the gas well pipe (101), and a groove matching the protective tube (304) is provided on the outer ring (4). The protective tube (304) is used to restrict the outer ring (4) from sliding stably inside the gas well pipe (101).

6. The automatic gas well filling device according to claim 5, characterized in that: The air outlet pipe (303) is located inside the protection pipe (304), and the air outlet pipe (303) is a telescopic hose.

7. The automatic gas well filling device according to claim 1, characterized in that: The rotating ring (402) is provided with a plurality of groups of water guide grooves (403). When the rotating ring (402) rotates, the accumulated water can be guided upward through the water guide grooves (403) to become smaller water droplets.

8. The automatic gas well filling device according to claim 1, characterized in that: The tubing head (102) is provided with an equipment pipe (105), the equipment pipe (105) is provided with a sealing cover, a pressure sensor (106) is mounted on the sealing cover, and the pressure sensor (106), the filling pipe (202), and the gas outlet pipe (303) all penetrate the sealing cover on the equipment pipe (105) and enter the gas well pipe (101).

Images