Automatic filling device for foam scrubbing agent of natural gas well

Abstract

The invention discloses a natural gas well foam scrubbing agent automatic filling device, and relates to the technical field of natural gas production. The automatic filling device for the natural gas well foam scrubbing agent comprises an agent water tank, a diaphragm pump, a plurality of electromagnetic valves and a PLC (Programmable Logic Controller) upper computer, wherein a water outlet pipeline is arranged at the lower part of the agent water tank; the diaphragm pump is arranged on the water outlet pipeline; the multiple electromagnetic valves are connected to the tail end of the water outlet pipeline in parallel, and the outlet ends of the multiple electromagnetic valves are each connected with a natural gas well. And the PLC upper computer is respectively connected with the diaphragm pump and the plurality of electromagnetic valves. According to the automatic filling device, timing or quantitative filling of multiple natural gas wells is achieved through one device, and the filling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas production, and particularly relates to an automatic dosing device for foam drainage agents in natural gas wells. Background Art

[0002] In the related art, the dosing form of foam drainage agents in existing natural gas wells is single. Manual dosing is carried out by on-site personnel operating pneumatic diaphragm pumps or electric piston pumps, and during the dosing process, only one natural gas well can be dosed one by one, seriously affecting production efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic dosing device for foam drainage agents in natural gas wells to solve the problems brought by the single existing dosing form.

[0004] To this end, an embodiment of the present invention provides an automatic dosing device for foam drainage agents in natural gas wells.

[0005] The automatic dosing device for foam drainage agents in natural gas wells according to the embodiment of the present invention includes a chemical agent water tank, a diaphragm pump, a plurality of solenoid valves, and a PLC host computer. A water outlet pipe is provided at the lower part of the chemical agent water tank; the diaphragm pump is arranged on the water outlet pipe; a plurality of the solenoid valves are connected in parallel at the end of the water outlet pipe, and the outlet ends of the plurality of solenoid valves are respectively connected to a natural gas well; the PLC host computer is respectively connected to the diaphragm pump and the plurality of solenoid valves.

[0006] In some embodiments, a return water pipe is provided at the lower part of the chemical agent water tank. The return water pipe is connected to the end of the water outlet pipe through a safety valve, and the water flow in the water outlet pipe flows back to the chemical agent water tank after passing through the safety valve and the return water pipe.

[0007] In some embodiments, the automatic dosing device for foam drainage agents in natural gas wells further includes a ball valve; the ball valve is arranged on the water outlet pipe and is located in front of the diaphragm pump.

[0008] In some embodiments, the automatic dosing device for foam drainage agents in natural gas wells further includes a filter; the filter is arranged on the water outlet pipe and is located between the ball valve and the diaphragm pump. Preferably, the filter is a Y-type filter.

[0009] In some embodiments, the automatic dosing device for foam drainage agents in natural gas wells further includes a temperature transmitter; the temperature transmitter is arranged on the water outlet pipe and is located in front of the diaphragm pump.

[0010] In some embodiments, the automatic dosing device for gas well foam drainage agents further includes a pressure transmitter; the pressure transmitter is arranged on the water outlet pipe, and the pressure transmitter is located behind the safety valve.

[0011] In some embodiments, the automatic dosing device for gas well foam drainage agents further includes a flowmeter; the flowmeter is arranged on the water outlet pipe, and the flowmeter is located behind the pressure transmitter.

[0012] In some embodiments, the automatic dosing device for gas well foam drainage agents further includes a liquid level transmitter; the liquid level transmitter is arranged on the chemical agent water tank.

[0013] In some embodiments, the automatic dosing device for gas well foam drainage agents further includes a heater; the heater is arranged on the chemical agent water tank.

[0014] In some embodiments, the automatic dosing device for gas well foam drainage agents further includes a stirrer; the stirrer is arranged on the chemical agent water tank.

[0015] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present disclosure. Other features and aspects of the present disclosure will become clearer according to the following detailed description of the exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of an automatic dosing device for gas well foam drainage agents according to an embodiment of the present invention.

[0018] Reference Numerals:

[0019] Automatic dosing device for gas well foam drainage agents 100, chemical agent water tank 10, liquid level transmitter 101, heater 102, stirrer 103, water outlet pipe 11, return water pipe 12, safety valve 13, ball valve 14, filter 15, temperature transmitter 16, pressure transmitter 17, flowmeter 18, diaphragm pump 20, solenoid valve 30. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with specific implementation embodiments. However, those skilled in the art should understand that the implementation embodiments described below are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. Based on the implementation embodiments of the present invention, all other implementation embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] As Figure 1 shown, the automatic dosing device 100 for foam drainage agent in natural gas wells according to an embodiment of the present invention includes a chemical agent water tank 10, a diaphragm pump 20, a plurality of solenoid valves 30, and a PLC host computer (not shown).

[0022] A water outlet pipe 11 is provided at the lower part of the chemical agent water tank 10; the diaphragm pump 20 is arranged on the water outlet pipe 11; a plurality of solenoid valves 30 are connected in parallel at the end of the water outlet pipe 11, and the outlet ends of the plurality of solenoid valves 30 are respectively connected to a natural gas well; the PLC host computer is respectively connected to the diaphragm pump 20 and the plurality of solenoid valves 30.

[0023] It can be understood that the present invention controls the solenoid valve 30 through the PLC host computer to realize the switching of the injection gas wells. Since the pressures of each gas well are different, the injection can be carried out in a polling injection manner.

[0024] In the present invention, after the solenoid valve 30 is started, the diaphragm pump 20 is started through the PLC host computer to realize the dosing of the agent.

[0025] Furthermore, in the present invention, the PLC host computer also has a wireless transmission module, and the operator can operate through an external mobile phone terminal or computer terminal.

[0026] In some embodiments, as Figure 1 shown, a return water pipe 12 is provided at the lower part of the chemical agent water tank 10. The return water pipe 12 is connected to the end of the water outlet pipe 11 through a safety valve 13, and the water flow in the water outlet pipe 11 flows back to the chemical agent water tank 10 after passing through the safety valve 13 and the return water pipe 12.

[0027] It can be understood that the safety valve 13 provides overpressure protection for the pipeline.

[0028] In some embodiments, as Figure 1 shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a ball valve 14; the ball valve 14 is arranged on the water outlet pipe 11, and the ball valve 14 is located in front of the diaphragm pump 20.

[0029] It can be understood that the ball valve 14 effectively reduces the impact force of the agent.

[0030] In some embodiments, as Figure 1As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a filter 15; the filter 15 is arranged on the water outlet pipe 11, and the filter 15 is located between the ball valve and the diaphragm pump 20. Preferably, the filter 15 is a Y-type filter.

[0031] It can be understood that the filter 15 filters impurities in the agent to protect the overall equipment.

[0032] In some embodiments, as Figure 1 As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a temperature transmitter 16; the temperature transmitter 16 is arranged on the water outlet pipe 11, and the temperature transmitter 16 is located in front of the diaphragm pump 20.

[0033] It can be understood that the temperature of the agent is monitored by the temperature transmitter 16 to control the temperature of the agent, prevent freezing in winter, and set low-temperature protection for shutdown.

[0034] In some embodiments, as Figure 1 As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a pressure transmitter 17; the pressure transmitter 17 is arranged on the water outlet pipe 11, and the pressure transmitter 17 is located behind the safety valve 13.

[0035] It can be understood that the pressure after the diaphragm pump 20 boosts the pressure is monitored by the pressure transmitter 17, and overpressure protection for shutdown is set.

[0036] In some embodiments, as Figure 1 As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a flowmeter 18; the flowmeter 18 is arranged on the water outlet pipe 11, and the flowmeter 18 is located behind the pressure transmitter 17.

[0037] It can be understood that the control of the dosing volume is achieved through the flowmeter 18.

[0038] In some embodiments, as Figure 1 As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a liquid level transmitter 101; the liquid level transmitter 101 is arranged on the agent water tank 10.

[0039] It can be understood that the liquid level of the agent is monitored by the liquid level transmitter 101, and low-level stop heating protection and low-level shutdown protection are set.

[0040] In some embodiments, as Figure 1 As shown, the automatic dosing device 100 for foam drainage agent in natural gas wells further includes a heater 102; the heater 102 is arranged on the agent water tank 10.

[0041] In some embodiments, as Figure 1As shown, the automatic dosing device 100 for gas well foam drainage agents further includes a stirrer 103; the stirrer 103 is arranged on the agent water tank 10.

[0042] The automatic dosing device 100 for gas well foam drainage agents according to the embodiments of the present invention has the following advantages:

[0043] 1. It realizes the cyclic dosing of multiple gas wells by one device.

[0044] 2. Remote control operation is realized to achieve timed or quantitative dosing.

[0045] 3. It can be remotely controlled and operated on the mobile phone or computer side.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0049] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0050] In the present invention, the terms "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A natural gas well foaming agent automatic filling device, characterized in that: include: A medicine water tank, wherein a water outlet pipe is provided at the lower part of the medicine water tank; A diaphragm pump, wherein the diaphragm pump is arranged on the water outlet pipe; A plurality of solenoid valves, wherein the plurality of solenoid valves are connected in parallel at the end of the water outlet pipeline, and the outlet ends of the plurality of solenoid valves are respectively connected to a natural gas well; A PLC host computer is connected to the diaphragm pump and the plurality of solenoid valves respectively.

2. The automatic filling device for natural gas well foaming agent according to claim 1 is characterized in that: A return pipe is provided at the lower part of the medicine water tank, and the return pipe is connected to the end of the outlet pipe through a safety valve. The water in the outlet pipe flows back to the medicine water tank after passing through the safety valve and the return pipe.

3. The automatic filling device for natural gas well foaming agent according to claim 2 is characterized in that: Also included is a ball valve; The ball valve is arranged on the water outlet pipe, and the ball valve is located in front of the diaphragm pump.

4. The automatic filling device for natural gas well foaming agent according to claim 3 is characterized in that: Also includes filters; The filter is arranged on the water outlet pipe, and the filter is located between the ball valve and the diaphragm pump. Preferably, the filter is a Y-type filter.

5. The automatic filling device for natural gas well foaming agent according to claim 2 is characterized in that: Also included is a temperature transmitter; The temperature transmitter is arranged on the water outlet pipe, and the temperature transmitter is located in front of the diaphragm pump.

6. The automatic filling device for the natural gas well foaming agent according to claim 5 is characterized in that: Also included is a pressure transmitter; The pressure transmitter is arranged on the water outlet pipe, and the pressure transmitter is located behind the safety valve.

7. The automatic filling device for natural gas well foaming agent according to claim 6 is characterized in that: Also included is a flow meter; The flow meter is arranged on the water outlet pipe, and the flow meter is located behind the pressure transmitter.

8. The automatic filling device for natural gas well foaming agent according to claim 1 is characterized in that: Also included is a level transmitter; The liquid level transmitter is arranged on the medicine water tank.

9. The automatic filling device for natural gas well foaming agent according to claim 1 is characterized in that: Also included is a heater; The heater is arranged on the medicine water tank.

10. The automatic filling device for natural gas well foaming agent according to claim 1, characterized in that: Also includes a blender; The agitator is arranged on the medicine water tank.

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