Diluting tank for gas well medicament mixed filling

Abstract

A dilution tank for gas well medicament mixed filling comprises a dilution tank body and a pump, the upper portion of the dilution tank body is a medicament box body, the lower portion of the dilution tank body is a water box body, the bottom of the medicament box body is an inclined plane, the lowest position of the inclined plane is connected with a liquid outlet pipe, the top of the medicament box body is connected with a liquid inlet pipe, and the top of the medicament box body is provided with a spraying system; the side face of the bottom of the water tank is connected with a liquid outlet pipe. The side face of the top of the water tank is connected with a liquid inlet pipe. An inlet of the pump is connected with a liquid outlet pipe of the water tank body and an external pipeline, and an outlet of the pump is connected with a liquid inlet pipe of the water tank body, a liquid inlet pipe of the medicament tank and the spraying system. The whole device adopts closed configuration, so that peculiar smell is not easy to diffuse; the medicament box body is arranged on the upper half part of the diluting tank, the bottom of the medicament box body is inclined, a liquid outlet is formed in the lowest inclined position, the residual liquid amount after medicament filling can be extremely low due to the arrangement of the medicament box body, and cleaning liquid after cleaning can be completely discharged out of the medicament box body.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas exploitation, and particularly relates to a dilution tank for mixing and injecting agents such as gas well foam drainage agents, plugging removal agents, and water blockage removal agents. Background Technique

[0002] During the process of natural gas exploitation, various oil and chemical additives are usually added to assist production in the later stage of natural gas well exploitation. Among them, foam drainage agents, plugging removal agents, and water blockage removal agents account for a relatively high proportion. The injection of various agents makes the odor of the agents relatively large, and the agents cannot be directly mixed and injected. Single agents need to be injected step by step. In this process, the operation difficulty for personnel is large. If different agent tanks are used, the agent dilution tank will occupy too much space. If the same dilution tank is used, it is difficult to eliminate the mutual influence of different agent injections.

[0003] The utility model patent with the patent publication number CN216381344U discloses a chemical agent injection system for a gas production well, including: a gas production tree, which is provided with a gas production outlet for communicating with a tubing and a chemical agent injection port for communicating with a casing; a gas production pipe string, including a heat preservation pipe section located in the upper section of the gas production pipe string and a heat conduction pipe section located in the lower section of the gas production pipe string; and further including: an agent tank, which is used to be arranged outside the gas production well for injecting chemical agents; a produced fluid coiled pipe, which is coiled around the agent tank and is used to be connected to the gas production outlet on the gas production tree, and heats the chemical agents in the agent tank when the fluid discharged from the gas production outlet passes through.

[0004] However, this patent does not describe the cleaning process and method of the agent tank body. At the same time, the liquid outlet of the tank body is not arranged at the bottom of the tank body, and there will always be residual problems with the agents in the tank body. Furthermore, the problem of mutual influence when multiple agents need to be injected cannot be avoided. Content of the Utility Model

[0005] The utility model aims to provide a dilution tank for mixing and injecting gas well agents, which is used to solve the problems of large odor, complex operation, and mutual influence of multiple agents such as foaming agents, plugging removal agents, and water blockage removal agents during the exploitation of current old natural gas wells.

[0006] In order to achieve the above invention purpose, the technical solution of the utility model is as follows:

[0007] A dilution tank for mixing and injecting gas well agents includes a dilution tank body and a pump. The upper part of the dilution tank body is an agent box body, and the lower part of the dilution tank body is a water tank body. The bottom of the agent box body is an inclined plane, and the lowest point of the inclined plane is connected with a liquid outlet pipe. The top of the agent box body is connected with a liquid inlet pipe, and a spraying system is arranged at the top of the agent box body; the side of the bottom of the water tank body is connected with a liquid outlet pipe, and the side of the top of the water tank body is connected with a liquid inlet pipe; the inlet of the pump is connected with the liquid outlet pipe of the water tank body and an external pipeline, and the outlet of the pump is connected with the liquid inlet pipe of the water tank body, the liquid inlet pipe of the agent box, and the spraying system.

[0008] The liquid inlet pipe and liquid outlet pipe of the water tank body, the liquid inlet pipe and liquid outlet pipe of the chemical agent box body, the external pipeline, and the connecting pipeline between the pump and the spraying system are respectively provided with valves.

[0009] The spraying system includes a plurality of nozzles, which are arranged on the top surface of the chemical agent box body, and each nozzle corresponds to one side or bottom surface of the chemical agent box body respectively.

[0010] The pump is an acid-resistant and corrosion-resistant DC self-priming pump, with a rated voltage of 12V - 72V and a rated displacement of 1m3 / h - 3m3 / h.

[0011] The chemical agent box body and the water tank body are respectively provided with a liquid level gauge and a breathing valve.

[0012] The dilution tank for mixing and injecting gas well chemicals is further provided with a controller, and the controller is electrically connected to the valves, the pump, and the spraying system respectively.

[0013] The liquid inlet pipe and liquid outlet pipe of the water tank body, the liquid inlet pipe and liquid outlet pipe of the chemical agent box body, the external pipeline, and the connecting pipeline between the pump and the spraying system are all made of stainless steel.

[0014] A horizontal plane is provided at the lowest part of the bottom of the chemical agent box body, and a downward-connected liquid outlet is provided in the middle of the horizontal plane. The liquid outlet is communicated with the liquid outlet pipe of the chemical agent box.

[0015] The lower part of the side of the water tank body adopts a stepped structure, and the pump is arranged below the stepped structure.

[0016] A replaceable battery is further provided below the stepped structure, and the replaceable battery is electrically connected to the pump, the controller, and the valves respectively.

[0017] The beneficial effects of the present utility model:

[0018] 1. In the present utility model, the whole device adopts a closed configuration, and peculiar smell is not easily emitted; the chemical agent box body is in the upper half of the dilution tank, and the bottom adopts an inclined shape, and a liquid outlet is provided at the lowest part of the inclination. The configuration of the chemical agent box body can make the residual liquid volume extremely low after the chemical agent is injected, and the cleaning liquid after cleaning can also be completely discharged from the chemical agent box body.

[0019] 2. In the present utility model, the water tank body is located at the lower part of the dilution tank, and a side-connected liquid outlet is connected to the bottom, avoiding occupying space at the bottom, and the influence of the residual water on the box body and the subsequent configured chemical agent is extremely low.

[0020] 3. In the present utility model, the pump inlet of the pump system is connected to the water tank body and the external inlet, the pump outlet is connected to the upper part of the water tank body, the upper part of the chemical agent box body, and the spraying system, and valves are installed between each functional module. The liquid inlet and outlet of the box body can be realized by controlling the opening and closing of the valves. At the same time, the spraying system is configured in multiple directions, and the overall cleaning of the chemical agent box body can be realized.

[0021] 4. In this utility model, the power supply is located at the lower side of the water tank body and supplies power to the pump through a controller. The power supply adopts a replaceable battery, and this configuration can ensure stable power supply. The controller is located on the side of the chemical agent box body, above the pump and the battery, and is connected to the battery and the pump through cables, and can complete functions such as pump switch and short-circuit protection, which is convenient for operation. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a dilution tank for gas well chemical agent mixing and filling of this utility model.

[0023] Among them, 1. Chemical agent box body; 2. Water tank body; 3. Pump; 4. Controller; 5. Replaceable battery; 6. Spraying system; 7. Liquid level gauge; 8. Breather valve; 9. Inlet pipe; 10. Outlet pipe; 11. External pipeline. Detailed Embodiment

[0024] The following further describes this utility model in detail with reference to the embodiments, but the implementation manners of this utility model are not limited thereto.

[0025] Embodiment 1

[0026] As Figure 1As shown in the figure, this embodiment provides a dilution tank for mixing and injecting chemicals in a gas well, which includes a dilution tank body and a pump 3. The upper part of the dilution tank body is a chemical agent box body 1, and the lower part is a water tank body 2. The bottom of the chemical agent box body 1 is an inclined plane, and the lowest point of the inclined plane is connected with a liquid outlet pipe 10. The top of the chemical agent box body 1 is connected with a liquid inlet pipe 9. A spraying system 6 is arranged at the top of the chemical agent box body 1; the side of the bottom of the water tank body 2 is connected with a liquid outlet pipe 10, and the side of the top of the water tank body 2 is connected with a liquid inlet pipe 9; the inlet of the pump 3 is connected with the liquid outlet pipe 10 of the water tank body 2 and an external pipeline 11, and the outlet of the pump 3 is connected with the liquid inlet pipe 9 of the water tank body 2, the chemical agent box inlet pipe 9 and the spraying system 6; valves are respectively arranged on the liquid inlet pipe 9 and the liquid outlet pipe 10 of the water tank body 2, the liquid inlet pipe 9 and the liquid outlet pipe 10 of the chemical agent box body 1, the external pipeline 11 and the connecting pipeline of the pump 3 and the spraying system 6; the spraying system 6 includes 5 nozzles, and the nozzles are arranged on the top surface of the chemical agent box body 1, and each nozzle corresponds to one side or the bottom surface of the chemical agent box body 1 respectively; the pump 3 is a DC self-priming pump that is acid and corrosion resistant, with a rated voltage of 12V - 72V and a rated displacement of 1m3 / h - 3m3 / h; the liquid inlet pipe 9 and the liquid outlet pipe 10 of the water tank body 2, the liquid inlet pipe 9 and the liquid outlet pipe 10 of the chemical agent box body 1, the external pipeline 11 and the connecting pipeline of the pump 3 and the spraying system 6 are all made of stainless steel; a horizontal plane is arranged at the lowest point of the bottom of the chemical agent box body 1, and a downward-connected liquid outlet is arranged in the middle of the horizontal plane, and the liquid outlet is communicated with the chemical agent box liquid outlet pipe 10; the lower part of the side of the water tank body 2 adopts a stepped structure, and the pump 3 is arranged below the stepped structure; a replaceable battery 5 is also arranged below the stepped structure, and the replaceable battery 5 is electrically connected with the pump 3 and the valve respectively.

[0027] In this embodiment, during actual application, connect the external pipeline 11 connected to the inlet of the pump 3 to a water bucket or a water pool, open the valves of the external pipeline 11 and the liquid inlet pipe 9 of the water tank body 2, close other valves, and turn on the pump 3 to pump water into the water tank body 2. After the water is pumped in, turn off the pump 3 and the valves of the external pipeline 11 and the liquid inlet pipe 9 of the water tank body 2;

[0028] Connect the external pipeline 11 to the water agent container, open the external valve and the valve of the chemical agent box body 1, close other valves, turn on the pump 3 to pump the water agent into the chemical agent box body 1. After the pumping is completed, close the valve of the external pipeline 11, open the valve of the liquid outlet pipe 10 of the water tank body 2, and pump the water in the water tank body 2 into the chemical agent box body 1 to dilute the chemical agent. When the dilution liquid injection is completed, close the valves and the pump 3;

[0029] Open the valve of the liquid outlet pipe 10 of the chemical agent box 1, and start injecting the water-based diluent into the gas well. After the injection is completed, open the valves of the liquid outlet pipe 10 of the water tank 2 and the pipeline connecting the pump 3 and the spraying system 6. The spray head starts to wash the four sides and the bottom surface of the chemical agent box 1, and continues to inject the cleaning liquid in the chemical agent box 1 into the gas well. Completing the above operations can complete one injection of the chemical agent, and the inside of the chemical agent box 1 can be kept clean. Then start the injection of the next chemical agent. During the whole operation process, the odor of the chemical agent is less dispersed, the configuration process is simple, and the chemical agent box 1 is clean.

[0030] Example 2

[0031] Compared with Example 1, the difference in this example is that in this example, the chemical agent box 1 and the water tank 2 are respectively provided with a liquid level gauge 7 and a breathing valve 8; the rest of the structure is the same as that in Example 1.

[0032] In this example, by arranging the liquid level gauges 7 on the water tank 2 and the chemical agent box 1, the liquid levels in the water tank 2 and the chemical agent box 1 can be detected by the liquid level gauges 7 when injecting liquid into the water tank 2 and the chemical agent box 1, ensuring the accuracy of liquid addition; and breathing valves 8 are respectively arranged in the water tank 2 and the chemical agent box 1, which can not only reduce the gas emission in the tank, thereby reducing the pollution to the atmosphere, but also prevent the storage tank from being damaged due to overpressure or becoming unstable due to over-vacuum, playing a certain promoting role in both safety and environmental protection.

[0033] Example 3

[0034] Compared with Example 2, the difference in this example is that in this example, the dilution tank for mixing and injecting the gas well chemical agent is further provided with a controller 4, and the controller 4 is electrically connected to the valves, the pump 3 and the spraying system 6 respectively.

[0035] In this example, when in use, according to the settings of the staff, the controller 4 can control the opening and closing of the valves of the liquid inlet pipe 9 and the liquid outlet pipe 10 of the water tank 2, the liquid inlet pipe 9 and the liquid outlet pipe 10 of the chemical agent box 1, the external pipeline 11 and the pipeline connecting the pump 3 and the spraying system 6, realizing the automatic injection of the liquid in the water tank 2 and the chemical agent box 1, the automatic cleaning of the chemical agent box 1 after the chemical agent injection is completed, and the automatic injection of the diluted chemical agent and the cleaning liquid into the gas well, realizing the full-automatic operation of the dilution tank. And the controller 4 can real-time monitor the liquid levels in the chemical agent box 1 and the water tank 2 according to the data of the liquid level gauges 7, realizing the precise injection of the liquid in the chemical agent box 1 and the water tank 2.

[0036] It can be understood that the present utility model is described by means of some embodiments. Those skilled in the art will know that without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A dilution tank for mixing and filling gas well chemicals, characterized by: The invention comprises a dilution tank body and a pump (3), wherein the upper part of the dilution tank body is a medicine box body (1), and the lower part of the dilution tank body is a water box body (2); the bottom of the medicine box body (1) is an inclined surface, and the lowest part of the inclined surface is connected to a liquid outlet pipe (10); the top of the medicine box body (1) is connected to a liquid inlet pipe (9); and the top of the medicine box body (1) is provided with a spray system (6); the bottom side of the water box body (2) is connected to the liquid outlet pipe (10), and the top side of the water box body (2) is connected to the liquid inlet pipe (9); the inlet of the pump (3) is connected to the liquid outlet pipe (10) of the water box body (2) and an external pipe (11), and the outlet of the pump (3) is connected to the liquid inlet pipe (9) of the water box body (2), the liquid inlet pipe (9) of the medicine box, and the spray system (6).

2. The dilution tank for mixing and filling gas well chemicals according to claim 1 is characterized by: The liquid inlet pipe (9) and the liquid outlet pipe (10) of the water tank body (2), the liquid inlet pipe (9) and the liquid outlet pipe (10) of the medicine tank body (1), the external pipe line (11) and the connecting pipe line between the pump (3) and the spray system (6) are respectively provided with valves.

3. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: The spray system (6) comprises a plurality of spray heads, which are arranged on the top surface of the medicine box (1), and each spray head corresponds to a side surface or a bottom surface of the medicine box (1).

4. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: The pump (3) is an acid-resistant and corrosion-resistant direct current self-priming pump (3).

5. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: The medicine box body (1) and the water box body (2) are respectively provided with a liquid level meter (7) and a breathing valve (8).

6. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: The liquid inlet pipe (9) and the liquid outlet pipe (10) of the water tank body (2), the liquid inlet pipe (9) and the liquid outlet pipe (10) of the medicine tank body (1), the external pipe line (11) and the connecting pipe line between the pump (3) and the spray system (6) are all made of stainless steel.

7. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: A horizontal plane is provided at the lowest point of the bottom of the medicine box body (1), and a bottom-connected liquid outlet is provided in the middle of the horizontal plane. The liquid outlet is connected to the liquid outlet pipe (10) of the medicine box.

8. The dilution tank for mixing and injecting gas well chemicals according to claim 1 is characterized by: The lower side of the water tank body (2) adopts a stepped structure, and the pump (3) is arranged below the stepped structure.

9. The dilution tank for mixing and injecting gas well chemicals according to claim 2, characterized in that: The dilution tank for mixing and filling gas well chemicals is also provided with a controller (4), and the controller (4) is electrically connected to the valve, the pump (3) and the spray system (6) respectively.

10. The dilution tank for mixing and injecting gas well chemicals according to claim 8, characterized in that: A replaceable storage battery (5) is also provided below the stepped structure, and the replaceable storage battery (5) is electrically connected to the pump (3), the controller (4) and the valve respectively.

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