Separated flow testing device for hydrogen sulfide detection

Abstract

The utility model relates to the technical field of petroleum equipment, in particular to a separated flow testing device for hydrogen sulfide detection. Comprising a device inlet, a gas-liquid mixing pipe, a buffer pipe, a gas-liquid separation cavity, a gas pipe, a liquid pipe, an electromagnetic control valve, a gas detection cavity, a one-way gas valve, a hydrogen sulfide gas detector, a warning lamp, a motor assembly, a crude oil moisture content detector, a liquid detection cavity, a crude oil liquid amount tester and a device outlet. Secondary separation of associated gas and associated liquid in the crude oil can be realized, so that the hydrogen sulfide gas in the associated gas in the crude oil is more accurately detected, and the data detection error of the liquid production capacity of the crude oil is smaller.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to a separate flow test device for detecting hydrogen sulfide. Background Technology

[0002] In the field of crude oil testing, the detection of fluid flow rate and the concentration of specific gases (such as hydrogen sulfide) is crucial. Traditional testing methods often require separating crude oil flow rate testing and hydrogen sulfide concentration testing, which not only increases operational complexity but can also lead to inaccurate hydrogen sulfide detection due to improper gas sampling and processing. Therefore, the market urgently needs a device that can simultaneously perform crude oil flow rate testing and hydrogen sulfide concentration detection. Summary of the Invention

[0003] To solve the above-mentioned technical problems and achieve the above-mentioned technical features, the present invention adopts the following technical solution.

[0004] A separate flow testing device for detecting hydrogen sulfide includes an inlet, a gas-liquid mixing pipe, a buffer pipe, a gas-liquid separation chamber, a gas pipe, a liquid pipe, an electromagnetic control valve, a gas detection chamber, a one-way gas valve, a hydrogen sulfide gas detector, a warning light, a motor assembly, a crude oil water content detector, a liquid detection chamber, a crude oil volume analyzer, and an outlet. The inlet is where the crude oil mixture enters the device. The gas-liquid mixing pipe includes sections A and B. The buffer pipe includes sections A and B. The gas-liquid separation chamber includes sections A and B. The gas pipe includes sections A, B, C, D, and E. The liquid pipe includes sections A, B, and C. The outlet is where the crude oil mixture exits the device.

[0005] Furthermore, the electromagnetic control valve is located between section C of the gas pipe and the gas detection chamber, and is used to control the flow of crude oil-associated gas into the gas detection chamber; the hydrogen sulfide gas detector is located at the top of the gas detection chamber; the one-way valve is located on the side of the gas detection chamber, and is used to allow air to enter the gas detection chamber in one direction to stabilize the gas pressure inside the gas detection chamber; the motor assembly includes a motor and a motor push rod, and the motor controls the motor push rod to realize the introduction and discharge of gas; the crude oil water content detector is connected to section B of the gas pipe, and is used to detect the water content data of crude oil-associated liquid; the liquid detection chamber is connected to section C of the liquid pipe, and is used to temporarily store the crude oil-associated liquid to be tested; the crude oil liquid volume tester is located at the top of the liquid detection chamber, and is used to test the instantaneous flow rate and cumulative flow rate of the crude oil-associated liquid.

[0006] Furthermore, the hydrogen sulfide gas detector is equipped with an external warning light, which illuminates when the detector detects the presence of hydrogen sulfide gas in the associated gas of crude oil.

[0007] Furthermore, both the crude oil water content analyzer and the crude oil volume analyzer are equipped with LCD screens.

[0008] Furthermore, the electromagnetic control valve has a timer, which is used to control the opening and closing time of the electromagnetic control valve. The opening and closing time set by the timer is related to the action time of the motor assembly in extracting crude oil associated gas and expelling crude oil associated gas.

[0009] The beneficial effects of this utility model are as follows: When a separation-type flow testing device for detecting hydrogen sulfide is in operation, crude oil flows into section A of the gas-liquid mixing pipe through the device inlet. The crude oil then flows into section A of the buffer pipe. If the crude oil flow rate of the oil well is large, the crude oil will simultaneously flow into the gas-liquid separation chamber A through both sections A and B of the buffer pipe. The crude oil undergoes its first gas-liquid separation in the gas-liquid separation chamber A. The associated liquid flows downwards into section A of the liquid pipe, while the associated gas flows upwards through sections A, B, and C of the gas pipe, and then through the open circuit of the electromagnetic control valve. At this time, the motor assembly draws in the associated gas from the crude oil and outside air passing through the one-way valve into the gas detection chamber. If the associated gas in the gas detection chamber is detected by the hydrogen sulfide gas detector, a warning light illuminates. After the hydrogen sulfide gas detection is completed, the electromagnetic control valve closes, and the associated gas is pushed out through the motor assembly to section D of the gas pipe. The associated gas then flows through section D, section E of the gas pipe, section B of the gas-liquid mixing pipe, and is discharged through the device outlet. After the crude oil undergoes its first gas-liquid separation in gas-liquid separation chamber A, the associated liquid flows into gas-liquid separation chamber B via liquid pipe section A. If the associated liquid contains a small amount of gas or bubbles, it undergoes a second gas-liquid separation in gas-liquid separation chamber B. After the second separation, the associated gas flows upward into gas pipe section B, following the same flow direction as the gas flow and hydrogen sulfide detection process, which will not be elaborated further. After the second separation, the associated liquid flows downward through liquid pipe section B. At this point, a crude oil moisture content analyzer connected to liquid pipe section B measures the moisture content of the associated liquid. After moisture content detection, the associated liquid flows into the liquid detection chamber via liquid pipe section C. A crude oil flow rate analyzer at the top of the liquid detection chamber measures the instantaneous and cumulative flow rates of the associated liquid. After flow rate testing, the associated liquid is discharged through gas-liquid mixing pipe section B and the device outlet. A separate flow test device for detecting hydrogen sulfide can achieve secondary separation of associated gas and associated liquid in crude oil through the above-mentioned operation, which not only makes the detection of hydrogen sulfide gas in associated gas of crude oil more accurate, but also makes the detection error of crude oil production data smaller. Attached Figure Description

[0010] Figure 1 This is a rear view schematic diagram of a separate flow testing device for detecting hydrogen sulfide.

[0011] Figure 2 This is a three-dimensional structural diagram of a separate flow testing device for detecting hydrogen sulfide.

[0012] In the diagram: 101 - Device inlet, 102 - Gas-liquid mixing pipe section A, 103 - Buffer pipe section A, 104 - Buffer pipe section B, 105 - Gas-liquid separation chamber A, 106 - Gas pipe section A, 107 - Liquid pipe section A, 108 - Gas-liquid separation chamber B, 109 - Gas pipe section B, 110 - Gas pipe section C, 111 - Electromagnetic control valve, 112 - Gas detection chamber, 113 - One-way gas valve, 114 - Hydrogen sulfide gas detector, 115 - Warning light, 116 - Motor assembly, 201 - Gas pipe section D, 202 - Gas pipe section E, 203 - Liquid pipe section B, 204 - Crude oil water content detector, 205 - Liquid pipe section C, 206 - Liquid detection chamber, 207 - Crude oil volume analyzer, 208 - Gas-liquid mixing pipe section B, 209 - Device outlet. Detailed Implementation

[0013] This utility model provides a separate flow testing device for detecting hydrogen sulfide, such as... Figure 1 , Figure 2As shown, a separation-type flow testing device for detecting hydrogen sulfide includes an inlet 101, a gas-liquid mixing pipe, a buffer pipe, a gas-liquid separation chamber, a gas pipe, a liquid pipe, an electromagnetic control valve 111, a gas detection chamber 112, a one-way gas valve 113, a hydrogen sulfide gas detector 114, a warning light 115, a motor assembly 116, a crude oil water content detector 204, a liquid detection chamber 206, a crude oil volume analyzer 207, and an outlet 209. The inlet 101 is the inlet for the crude oil mixture to enter the device. The gas-liquid mixing pipe includes section A 102 and section B 208. The buffer pipe includes section A 103 and section B 208. Section B 104; the gas-liquid separation chamber includes gas-liquid separation chamber A105 and gas-liquid separation chamber B108; the gas pipe includes gas pipe section A 106, gas pipe section B 109, gas pipe section C 110, gas pipe section D 201, and gas pipe section E 202; the liquid pipe includes liquid pipe section A 107, liquid pipe section B 203, and liquid pipe section C 205; the device outlet 209 is the outlet of the crude oil mixture discharge device; the electromagnetic control valve 111 is located between gas pipe section C 110 and gas detection chamber 112, and the electromagnetic control valve 111 is used to control the flow of crude oil associated gas into gas detection chamber 112; the hydrogen sulfide gas detector 114 is located at the top of gas detection chamber 112; The one-way air valve 113 is located on the side of the gas detection chamber 112. The one-way air valve 113 allows air to enter the gas detection chamber 112 in one direction, stabilizing the gas pressure inside the chamber. The motor assembly 116 includes a motor and a motor push rod. The motor controls the motor push rod to introduce and discharge gas. The crude oil water content analyzer 204 is connected to section B of the gas pipe 109 and is used to detect the water content data of the associated liquid in crude oil. The liquid detection chamber 206 is connected to section C of the liquid pipe 205 and is used to temporarily store the associated liquid in the crude oil to be tested. The crude oil volume analyzer 207 is located in the liquid detection chamber. At the top of 206, the crude oil volume tester 207 is used to test the instantaneous flow rate and cumulative flow rate of crude oil associated liquid; the hydrogen sulfide gas detector 114 is equipped with a warning light 115, which illuminates when the hydrogen sulfide gas detector 114 detects hydrogen sulfide gas in the crude oil associated gas; both the crude oil water content detector 204 and the crude oil volume tester 207 are equipped with LCD screens; the electromagnetic control valve 111 has a timer, which is used to control the opening and closing time of the electromagnetic control valve 111. The opening and closing time set by the timer is related to the action time of the motor assembly 116 in extracting and releasing crude oil associated gas.

[0014] An embodiment of this utility model is a separation flow testing device for detecting hydrogen sulfide. During operation, crude oil flows into the gas-liquid mixing pipe A section 102 through the device inlet 101. The crude oil then flows into the buffer pipe A section 103 via the gas-liquid mixing pipe A section 102. If the crude oil flow rate of the oil well is large, the crude oil will simultaneously flow into the gas-liquid separation chamber A105 via the buffer pipe A section 103 and the buffer pipe B section 104. The crude oil undergoes its first gas-liquid separation in the gas-liquid separation chamber A105. The associated liquid flows downwards into the liquid pipe A section 107, while the associated gas flows upwards through the gas pipe A section 106, gas pipe B section 109, and gas pipe C section 110, then through the open circuit of the electromagnetic control valve 111. At this time, the motor assembly 116 draws in the associated gas from the crude oil and outside air passing through the one-way valve 113, which flows into the gas detection chamber 112. If the associated gas in the crude oil flowing into the gas detection chamber 112 is detected by the hydrogen sulfide gas detector 114 and contains hydrogen sulfide gas, the warning light 115 illuminates. After hydrogen sulfide gas detection is completed, the electromagnetic control valve 111 closes, and the associated gas from the crude oil is pushed out through the motor assembly 116 to section D of the gas pipe 201. The associated gas then flows through section D of the gas pipe 201, section E of the gas pipe 202, section B of the gas-liquid mixing pipe 208, and is discharged from the device outlet 209. After the crude oil undergoes the first gas-liquid separation in the gas-liquid separation chamber A105, the associated liquid flows into the gas-liquid separation chamber B108 through section A of the liquid pipe 107. If the associated liquid contains a small amount of gas or bubbles, it undergoes a second gas-liquid separation in the gas-liquid separation chamber B108. After the second gas-liquid separation, the associated gas flows upward into section B of the gas pipe 109, following the same flow direction as the hydrogen sulfide detection process, and therefore will not be described further. After the second gas-liquid separation, the crude oil associated liquid flows downward through liquid pipe section B 203. At this time, the crude oil water content detector 204 connected to liquid pipe section B 203 measures the water content data of the crude oil associated liquid. After the water content data detection is completed, the crude oil associated liquid flows into the liquid detection chamber 206 through liquid pipe section C 205. At this time, the crude oil volume tester 207 installed at the top of the liquid detection chamber 206 tests the instantaneous flow rate and cumulative flow rate data of the crude oil associated liquid. After the volume test is completed, the crude oil associated liquid is discharged through gas-liquid mixing pipe section B 208 and device outlet 209. This achieves crude oil gas-liquid separation and realizes the data detection of associated hydrogen sulfide gas and crude oil volume in the crude oil.

[0015] The above description is a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A separate flow testing device for detecting hydrogen sulfide, characterized in that, The device comprises an inlet, a gas-liquid mixing pipe, a buffer pipe, a gas-liquid separation chamber, a gas pipe, a liquid pipe, an electromagnetic control valve, a gas detection chamber, a one-way gas valve, a hydrogen sulfide gas detector, a warning light, a motor assembly, a crude oil water content detector, a liquid detection chamber, a crude oil volume analyzer, and an outlet. The inlet is where the crude oil mixture enters the device. The gas-liquid mixing pipe includes sections A and B. The buffer pipe includes sections A and B. The gas-liquid separation chamber includes sections A and B. The gas pipe includes sections A, B, C, D, and E. The liquid pipe includes sections A, B, and C. The outlet is where the crude oil mixture exits the device.

2. The separate flow testing device for detecting hydrogen sulfide according to claim 1, characterized in that, The electromagnetic control valve is located between section C of the gas pipe and the gas detection chamber, and is used to control the flow of crude oil-associated gas into the gas detection chamber. The hydrogen sulfide gas detector is located at the top of the gas detection chamber. The one-way valve is located on the side of the gas detection chamber, and is used to allow air to enter the gas detection chamber in one direction to stabilize the gas pressure inside the chamber. The motor assembly includes a motor and a motor push rod, and the motor controls the motor push rod to introduce and discharge gas. The crude oil water content detector is connected to section B of the gas pipe, and is used to detect the water content data of the crude oil-associated liquid. The liquid detection chamber is connected to section C of the liquid pipe, and is used to temporarily store the crude oil-associated liquid to be tested. The crude oil liquid volume tester is located at the top of the liquid detection chamber, and is used to test the instantaneous flow rate and cumulative flow rate of the crude oil-associated liquid.

3. The separate flow testing device for detecting hydrogen sulfide according to claim 1, characterized in that, The hydrogen sulfide gas detector is equipped with an external warning light, which illuminates when the detector detects the presence of hydrogen sulfide gas in the associated gas of crude oil.

4. The separate flow testing device for detecting hydrogen sulfide according to claim 1, characterized in that, Both the crude oil water content analyzer and the crude oil volume analyzer are equipped with LCD screens.

5. The separate flow testing device for detecting hydrogen sulfide according to claim 1, characterized in that, The electromagnetic control valve has a timer, which is used to control the opening and closing time of the electromagnetic control valve. The opening and closing time set by the timer is related to the action time of the motor assembly in extracting crude oil associated gas and expelling crude oil associated gas.

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