Well head gas-liquid separation device

Abstract

The utility model relates to the technical field of gas-liquid separation devices, in particular to a wellhead gas-liquid separation device which comprises a gas-liquid separation tank body, a buffer mechanism is installed on the tank wall of the gas-liquid separation tank body, and the buffer mechanism is formed by combining a liquid inlet pipe valve, an impurity discharging pipe valve, a buffer tank, a buffer plate, honeycomb holes and a conveying pipe. The tank wall of the gas-liquid separation tank main body is communicated and welded with the tank wall of the buffer tank through a conveying pipe, a plurality of groups of buffer plates for buffering liquid are welded on the tank inner wall of the buffer tank, honeycomb holes are formed in the plate walls of the buffer plates, and a liquid inlet pipe valve is communicated and mounted on the tank wall of the buffer tank; an impurity discharging pipe valve is installed on the tank wall of the buffer tank in a communicating mode, liquid is conveyed into the gas-liquid separation tank body through a conveying pipe, and therefore the situation that the interior of the gas-liquid separation tank body is damaged due to the fact that the flow speed of the liquid is too large can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation devices, in particular to a wellhead gas-liquid separation device. Background Art

[0002] In the production of oil fields, nitrogen and carbon dioxide are often injected into the production wells to increase the single well production and recovery rate. After gas injection, in the initial stage of blowout or pumping, the instantaneous gas displacement is large, and the gathering and transportation system is at risk of overpressure operation; at the same time, slugging, liquid hammer and other phenomena may occur, affecting the safe operation of the system. In addition, the entry of gas into the production system will seriously affect the purity of natural gas, causing the separated natural gas to be unable to be used normally. The on-site response measure is to discharge the oil well produced liquid into the tank truck at the wellhead for venting production. A single well requires 1-2 tank trucks, and the production time is 2-10 days. The special vehicle cost is high and the tank truck operating load is large; at the same time, the manual tank emptying operation at the wellhead is labor-intensive, and the oil well cannot be continuously produced, affecting the oil production time rate.

[0003] When separating gas and liquid at the oil field production wellhead, a gas-liquid separator is usually set at the wellhead, and the wellhead is directly connected to the oil inlet of the gas-liquid separator. When the oil and water at the wellhead directly enter the separator, the oil and water flow rate is unstable, which easily causes the separator to be impacted, affecting the service life of the gas-liquid separator. To this end, we propose a wellhead gas-liquid separation device. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a wellhead gas-liquid separation device.

[0005] The technical solution adopted by the utility model to solve its technical problems is a wellhead gas-liquid separation device, comprising a gas-liquid separation tank body, a buffer mechanism is installed at the tank wall of the gas-liquid separation tank body, and the buffer mechanism is composed of a liquid inlet pipe valve, a drainage pipe valve, a buffer tank, a buffer plate, a honeycomb hole and a conveying pipe combination. The tank wall of the gas-liquid separation tank body is connected and welded with the tank wall of the buffer tank through a conveying pipe, a plurality of groups of buffer plates for buffering liquid are welded to the tank inner wall of the buffer tank, the plate wall of the buffer plate is provided with honeycomb holes, the tank wall of the buffer tank is connected and installed with a liquid inlet pipe valve, and the tank wall of the buffer tank is connected and installed with a drainage pipe valve.

[0006] By adopting the above technical scheme, when the gas-liquid separation is carried out at the wellhead, since a buffer mechanism is installed on the tank wall of the gas-liquid separation tank body, the buffer mechanism is composed of a liquid inlet pipe valve, a discharge pipe valve, a buffer tank, a buffer plate, a honeycomb hole and a delivery pipe. After the liquid inlet pipe valve is connected to the wellhead, the personnel opens the valve at the liquid inlet pipe valve to allow the liquid and gas in the wellhead to enter the buffer tank. Since several groups of buffer plates for buffering liquids are welded on the tank inner wall of the buffer tank, and honeycomb holes are opened on the plate wall of the buffer plate, after the liquid enters the buffer tank, the buffer plate is used to buffer the liquid, so that the liquid enters the delivery pipe, and the liquid is transported to the gas-liquid separation tank body through the delivery pipe, thereby avoiding damage to the gas-liquid separation tank body caused by excessive liquid flow rate.

[0007] Specifically, it also includes an exhaust mechanism, and the exhaust mechanism is installed on the tank wall of the gas-liquid separation tank body.

[0008] By adopting the above technical solution, the gas in the gas-liquid separation tank body can be discharged through the exhaust mechanism.

[0009] Specifically, the exhaust mechanism is composed of an exhaust pipe valve, a chimney pipe, a mist collector and an igniter. A mist collector is installed on the top of the inner wall of the gas-liquid separation tank body, an exhaust pipe valve is installed at the output end of the mist collector, and the exhaust pipe valve runs through the gas-liquid separation tank body, a chimney pipe is installed at the other end of the exhaust pipe valve, and an igniter is installed on the pipe wall of the chimney pipe.

[0010] By adopting the above technical scheme, when the gas in the gas-liquid separation tank body is discharged, since an exhaust mechanism is installed at the tank wall of the gas-liquid separation tank body, the exhaust mechanism is composed of an exhaust pipe valve, a chimney pipe, a mist collector and an igniter. Since a mist collector is installed on the top of the tank inner wall of the gas-liquid separation tank body, the mist collector captures and discharges the gas in the tank body. After a person opens the exhaust pipe valve, the gas enters the chimney pipe, and then the person turns on the igniter, which ignites the combustibles in the gas to avoid polluting the environment when the gas is discharged.

[0011] Specifically, an oil-water separator is installed on the inner wall of the gas-liquid separation tank body, a drain pipe valve is installed at the output end of the oil-water separator, and the drain pipe valve runs through the gas-liquid separation tank body.

[0012] By adopting the above technical solution, the oil and water in the gas-liquid separation tank body can be separated by the oil-water separator, and then the water can be discharged through the drain pipe valve.

[0013] Specifically, an oil outlet pipe valve is connected and installed at the tank wall of the gas-liquid separation tank body.

[0014] By adopting the above technical solution, the oil in the gas-liquid separation tank body can be discharged through the oil outlet pipe valve.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses a wellhead gas-liquid separation device. When performing gas-liquid separation at the wellhead, a buffer mechanism is installed on the tank wall of the gas-liquid separation tank body. The buffer mechanism is composed of a liquid inlet pipe valve, a discharge pipe valve, a buffer tank, a buffer plate, a honeycomb hole and a delivery pipe. After the liquid inlet pipe valve is connected to the wellhead, a person opens the valve at the liquid inlet pipe valve to allow the liquid and gas in the wellhead to enter the buffer tank. Since a plurality of buffer plates for buffering liquids are welded on the tank inner wall of the buffer tank, and honeycomb holes are provided on the plate wall of the buffer plate, after the liquid enters the buffer tank, the buffer plate is used to buffer the liquid, so that the liquid enters the delivery pipe. The liquid is then delivered to the gas-liquid separation tank body through the delivery pipe, thereby preventing the gas-liquid separation tank body from being damaged due to excessive liquid flow rate.

[0017] (2) The utility model discloses a wellhead gas-liquid separation device. When discharging the gas in the gas-liquid separation tank body, an exhaust mechanism is installed on the tank wall of the gas-liquid separation tank body. The exhaust mechanism is composed of an exhaust pipe valve, a chimney pipe, a mist collector and an igniter. Since a mist collector is installed on the top of the tank inner wall of the gas-liquid separation tank body, the mist collector captures the gas in the tank body and discharges it. After a person opens the exhaust pipe valve, the gas enters the chimney pipe, and then the person opens the igniter, which ignites the combustibles in the gas to avoid polluting the environment when the gas is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is the main figure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the buffer mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the exhaust mechanism structure of the utility model;

[0022] In the figure: 1. Gas-liquid separation tank body; 2. Buffer mechanism; 201. Liquid inlet pipe valve; 202. Drain pipe valve; 203. Buffer tank; 204. Buffer plate; 205. Honeycomb hole; 206. Delivery pipe; 3. Oil outlet pipe valve; 4. Drain pipe valve; 5. Exhaust mechanism; 501. Exhaust pipe valve; 502. Chimney pipe; 503. Mist collector; 504. Ignitor; 6. Oil-water separator. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] As an embodiment of the present utility model, Figure 1 , Figure 2 and Figure 3 As shown, a wellhead gas-liquid separation device described in the utility model includes a gas-liquid separation tank body 1, a buffer mechanism 2 is installed at the tank wall of the gas-liquid separation tank body 1, and the buffer mechanism 2 is composed of a liquid inlet pipe valve 201, a drainage pipe valve 202, a buffer tank 203, a buffer plate 204, a honeycomb hole 205 and a delivery pipe 206. The tank wall of the gas-liquid separation tank body 1 is connected and welded with the tank wall of the buffer tank 203 through the delivery pipe 206, and a plurality of groups of buffer plates 204 for buffering liquid are welded to the tank inner wall of the buffer tank 203, and the plate wall of the buffer plate 204 is provided with honeycomb holes 205. The tank wall of the buffer tank 203 is connected and installed with a liquid inlet pipe valve 201, and the tank wall of the buffer tank 203 is connected and installed with a drainage pipe valve 202.

[0025] During use, since a buffer mechanism 2 is installed on the tank wall of the gas-liquid separation tank body 1, the buffer mechanism 2 is composed of a liquid inlet pipe valve 201, a discharge pipe valve 202, a buffer tank 203, a buffer plate 204, a honeycomb hole 205 and a delivery pipe 206. After the liquid inlet pipe valve 201 is connected to the wellhead, the personnel opens the valve at the liquid inlet pipe valve 201, so that the liquid and gas in the wellhead enter the buffer tank 203. Since several groups of buffer plates 204 for buffering liquids are welded on the tank inner wall of the buffer tank 203, and honeycomb holes 205 are opened on the plate wall of the buffer plate 204, after the liquid enters the buffer tank 203, the buffer plate 204 is used to buffer the liquid, so that the liquid enters the delivery pipe 206, and the liquid is transported to the gas-liquid separation tank body 1 through the delivery pipe 206, thereby avoiding damage to the gas-liquid separation tank body 1 caused by excessive liquid flow rate.

[0026] like Figure 1 As shown, it also includes an exhaust mechanism 5, and the exhaust mechanism 5 is installed on the tank wall of the gas-liquid separation tank body 1.

[0027] When in use, the gas in the gas-liquid separation tank body 1 can be discharged through the exhaust mechanism 5 .

[0028] like Figure 1 and Figure 3As shown, the exhaust mechanism 5 is composed of an exhaust pipe valve 501, a chimney pipe 502, a mist collector 503 and an igniter 504. The mist collector 503 is installed on the top of the inner wall of the gas-liquid separation tank body 1, and the exhaust pipe valve 501 is installed on the output end of the mist collector 503. The exhaust pipe valve 501 runs through the gas-liquid separation tank body 1. The other end of the exhaust pipe valve 501 is installed with a chimney pipe 502, and the igniter 504 is installed on the pipe wall of the chimney pipe 502.

[0029] When in use, since the exhaust mechanism 5 is installed on the tank wall of the gas-liquid separation tank body 1, the exhaust mechanism 5 is composed of an exhaust pipe valve 501, a chimney pipe 502, a mist collector 503 and an igniter 504. Since the mist collector 503 is installed on the top of the tank inner wall of the gas-liquid separation tank body 1, the mist collector 503 captures and discharges the gas in the tank body. After the personnel opens the exhaust pipe valve 501, the gas enters the chimney pipe 502, and then the personnel turns on the igniter 504, and the igniter 504 ignites the combustibles in the gas to avoid polluting the environment when the gas is discharged.

[0030] like Figure 1 As shown, an oil-water separator 6 is installed on the inner wall of the gas-liquid separation tank body 1 , a drain pipe valve 4 is installed at the output end of the oil-water separator 6 , and the drain pipe valve 4 runs through the gas-liquid separation tank body 1 .

[0031] When in use, the oil and water in the gas-liquid separation tank body 1 can be separated by the oil-water separator 6 , and then the water is discharged through the drain pipe valve 4 .

[0032] like Figure 1 As shown, an oil outlet pipe valve 3 is connected and installed at the tank wall of the gas-liquid separation tank body 1.

[0033] When in use, the oil in the gas-liquid separation tank body 1 can be discharged through the oil outlet pipe valve 3 .

[0034] When the utility model is in use, when the gas-liquid separation is performed at the wellhead, since a buffer mechanism 2 is installed at the tank wall of the gas-liquid separation tank body 1, the buffer mechanism 2 is composed of a liquid inlet pipe valve 201, a discharge pipe valve 202, a buffer tank 203, a buffer plate 204, a honeycomb hole 205 and a delivery pipe 206, after the liquid inlet pipe valve 201 is connected to the wellhead, a person opens the valve at the liquid inlet pipe valve 201, so that the liquid and gas in the wellhead enter the buffer tank 203. Since a plurality of buffer plates 204 for buffering liquid are welded on the tank inner wall of the buffer tank 203, and honeycomb holes 205 are opened on the plate wall of the buffer plate 204, after the liquid enters the buffer tank 203, the buffer plate 204 is used to buffer the liquid, so that the liquid enters the delivery pipe 206. 206, the liquid is transported to the gas-liquid separation tank body 1 through the delivery pipe 206, so as to avoid damage to the gas-liquid separation tank body 1 caused by excessive liquid flow rate. When the gas in the gas-liquid separation tank body 1 is discharged, since the gas-liquid separation tank body 1 is equipped with an exhaust mechanism 5 at the tank wall, the exhaust mechanism 5 is composed of an exhaust pipe valve 501, a chimney pipe 502, a mist collector 503 and an igniter 504. Since the mist collector 503 is installed on the top of the tank inner wall of the gas-liquid separation tank body 1, the mist collector 503 captures and discharges the gas in the tank body. After the personnel opens the exhaust pipe valve 501, the gas enters the chimney pipe 502, and then the personnel opens the igniter 504, and the igniter 504 ignites the combustibles in the gas to avoid polluting the environment when the gas is discharged.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wellhead gas-liquid separation device, characterized in that: The invention comprises a gas-liquid separation tank body (1), wherein a buffer mechanism (2) is installed on the tank wall of the gas-liquid separation tank body (1), and the buffer mechanism (2) is composed of a liquid inlet pipe valve (201), a waste pipe valve (202), a buffer tank (203), a buffer plate (204), a honeycomb hole (205) and a delivery pipe (206). The tank wall of the gas-liquid separation tank body (1) is connected and welded with the tank wall of the buffer tank (203) through the delivery pipe (206). A plurality of groups of buffer plates (204) for buffering liquid are welded on the tank inner wall of the buffer tank (203), and the plate wall of the buffer plate (204) is provided with a honeycomb hole (205). The tank wall of the buffer tank (203) is connected and installed with a liquid inlet pipe valve (201), and the tank wall of the buffer tank (203) is connected and installed with a waste pipe valve (202).

2. A wellhead gas-liquid separation device according to claim 1, characterized in that: It also comprises an exhaust mechanism (5), and the exhaust mechanism (5) is installed on the tank wall of the gas-liquid separation tank body (1).

3. A wellhead gas-liquid separation device according to claim 2, characterized in that: The exhaust mechanism (5) is composed of an exhaust pipe valve (501), a chimney pipe (502), a mist collector (503) and an igniter (504). The mist collector (503) is installed on the top of the inner wall of the gas-liquid separation tank body (1). The output end of the mist collector (503) is installed with an exhaust pipe valve (501), and the exhaust pipe valve (501) runs through the gas-liquid separation tank body (1). The other end of the exhaust pipe valve (501) is installed with a chimney pipe (502), and the igniter (504) is installed on the pipe wall of the chimney pipe (502).

4. A wellhead gas-liquid separation device according to claim 1, characterized in that: An oil-water separator (6) is installed on the inner wall of the gas-liquid separation tank body (1), a drain pipe valve (4) is installed at the output end of the oil-water separator (6), and the drain pipe valve (4) runs through the gas-liquid separation tank body (1).

5. A wellhead gas-liquid separation device according to claim 1, characterized in that: An oil outlet pipe valve (3) is installed in communication with the tank wall of the gas-liquid separation tank body (1).

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