Skid-mounted multiphase flow metering device

Abstract

The invention relates to the technical field of petroleum equipment, in particular to a skid-mounted multiphase flow metering device which comprises a liquid inlet, a buffer pipe, a gas-liquid separation cylinder, a gas pipe, a gas quantity detection cavity, a gas quantity detector, a hydrogen sulfide gas detection integral component, a manual valve, a liquid pipe, a water content detector, a liquid quantity detection cavity, a liquid quantity detector, a gas-liquid mixing pipe and a liquid outlet. The device can be used for testing associated gas and liquid-phase substances in crude oil in a segmented manner, can be used for detecting the concentration condition of hydrogen sulfide gas contained in the associated gas in the crude oil, and has the characteristics of stability in operation and convenience in installation.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum equipment, and in particular to a skid-mounted multiphase flow metering device. Background Art

[0002] Traditional metering devices can only measure the production of a single well, and require manual valve opening, manual reading, and time-sharing metering, which are cumbersome and inefficient. At the same time, the metering of oil, gas, and water media in the oil well production fluid lacks accuracy and real-time performance. Therefore, there is an urgent need for a skid-mounted multiphase flow metering device that can achieve online real-time metering and remote transmission of oil and gas in multiple wells. Summary of the invention

[0003] In order to solve the above technical problems and realize the above technical features, the present invention adopts the following technical solutions: A skid-mounted multiphase flow metering device, comprising a liquid inlet, a buffer pipe, a gas-liquid separation cylinder, a gas pipe, a gas volume detection chamber, a gas volume detector, a hydrogen sulfide gas detection integral component, a manual valve, a liquid pipe, a water content detector, a liquid volume detection chamber, a liquid volume detector, a gas-liquid mixing pipe, and a liquid outlet. The liquid inlet is the entrance for crude oil to enter the device. The buffer pipe comprises a buffer pipe A and a buffer pipe B. The buffer pipe is used to buffer a large amount of liquid crude oil entering the device to prevent the device from being flooded due to excessive crude oil liquid volume. The gas-liquid separation cylinder comprises a gas-liquid separation cylinder A and a gas-liquid separation cylinder B. The gas-liquid separation cylinder is used to separate the associated gas and liquid phase substances in the crude oil. The buffer tube A is connected to the gas-liquid separation cylinder A, the buffer tube B is connected to the gas-liquid separation cylinder B, the gas pipe includes a gas pipe section A, a gas pipe section B, a gas pipe section C, and a gas pipe section D. The gas pipe is a passage for the associated gas of crude oil. The gas pipe section A is connected to the gas volume detection cavity. A gas volume detector is provided on the top of the gas volume detection cavity. The gas volume detector is used to detect the instantaneous flow rate and the cumulative flow rate of the associated gas in the crude oil. The gas pipe section B is connected to the gas volume detection cavity. The hydrogen sulfide gas detection integral components include an air inlet, a solenoid valve, an air inlet pipe, a hydrogen sulfide gas chamber to be tested, a hydrogen sulfide gas detector, a warning light, a one-way air outlet valve A, an air outlet pressure relief valve, a one-way air outlet valve, and an air outlet pipe , an air outlet, a motor, a piston core rod, and a piston head, the air inlet is connected to section B of the air pipe, the air inlet is connected to the solenoid valve, the solenoid valve is connected to the air inlet pipe, the air inlet pipe is connected to the hydrogen sulfide gas test chamber, the hydrogen sulfide gas test chamber is connected to a hydrogen sulfide gas detector, a one-way air inlet valve is provided at the bottom of the hydrogen sulfide gas detector, the one-way air inlet valve is used to introduce oxygen from the outside air and maintain the air pressure in the hydrogen sulfide gas test chamber the same as that in the outside, an air outlet pressure relief valve is provided at the connecting part of the hydrogen sulfide gas test chamber, the air outlet pressure relief valve is used to discharge the original air in the hydrogen sulfide gas test chamber, the bottom of the air inlet pipe is connected to the one-way air outlet valve, the one-way The air outlet valve is connected to the air outlet pipe, the air outlet pipe is connected to the air outlet, the motor is connected to the piston core rod, the piston core rod is connected to the piston head, the air inlet in the hydrogen sulfide gas detection integral component is connected to the air pipe section B, the air outlet in the hydrogen sulfide gas detection integral component is connected to the air pipe section C, the air pipe section C is connected to the air pipe section D, a manual valve is provided in the air pipe section D, the manual valve is used to control the opening and closing of the crude oil associated gas through the air pipe section D, the liquid pipe is respectively connected to the bottom of the gas-liquid separation cylinder A, the gas-liquid separation cylinder B and the bottom of the liquid quantity detection cavity, the liquid quantity detection cavity is connected to the gas-liquid mixing pipe, and the gas-liquid mixing pipe is respectively connected to the air pipe section D and the liquid outlet.

[0004] Furthermore, a water content detector is provided at the top of the liquid pipe, and the water content detector is used to detect the water content data of the liquid phase substance in the crude oil.

[0005] Furthermore, a liquid quantity detector is provided on the top of the liquid quantity detection chamber, and the liquid quantity detector is used to detect the instantaneous flow rate and cumulative flow rate of the liquid phase substance in the crude oil.

[0006] Furthermore, the hydrogen sulfide gas detector in the hydrogen sulfide gas detection integral component is provided with a warning light, and when the hydrogen sulfide gas detector in the hydrogen sulfide gas detection integral component detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light turns on.

[0007] Furthermore, the gas volume detector, liquid volume detector and water content detector are all provided with LED display screens on the outside.

[0008] Furthermore, the solenoid valve in the hydrogen sulfide gas detection integral component is provided with a signal receiver, a controller and a timer. The signal receiver is used to receive an opening or closing instruction sent by a user terminal device, the controller is used to control the opening or closing of the solenoid valve, and the timer is used to realize a timed passage or timed closure of the solenoid valve.

[0009] Furthermore, the hydrogen sulfide gas detector in the hydrogen sulfide gas detection integral component is used to detect the concentration of hydrogen sulfide gas. The hydrogen sulfide gas detector is a hydrogen sulfide gas detector that conforms to the electrochemical principle. The hydrogen sulfide gas detector is provided with an LED display screen, an electrochemical sensor, and an integrated data processing circuit. The integrated data processing circuit has data processing and data transmission functions.

[0010] Preferably, the gas volume detector, liquid volume detector and water content detector are each internally provided with a microprocessor, a data storage unit and a signal transmission unit, wherein the microprocessor is used to analyze data, the data storage unit is used to store data, and the signal transmission unit is used to send data.

[0011] The beneficial effect of the present invention is that when a skid-mounted multiphase flow metering device is in working state, crude oil flows into gas-liquid separation cylinder A and gas-liquid separation cylinder B through the liquid inlet respectively via buffer tube A and buffer tube B, and the crude oil completes the separation of crude oil liquid phase material and associated gas in gas-liquid separation cylinder A and gas-liquid separation cylinder B, and the crude oil associated gas enters the gas volume detection cavity through the air pipe A section connected to the top of the gas-liquid separation cylinder A and gas-liquid separation cylinder B. The instantaneous flow rate and cumulative flow rate of the crude oil associated gas can be measured by using the gas volume detector provided on the top of the gas volume detection cavity. The crude oil associated gas with the measured instantaneous flow rate and cumulative flow rate enters the hydrogen sulfide gas detection integral component through the air pipe B section connected to the gas volume detection cavity through the air inlet in the hydrogen sulfide gas detection integral component. The solenoid valve in the hydrogen sulfide gas detection integral component uses its own controller to adjust the timer to the timing passage state, and the crude oil associated gas enters the air inlet pipe through the solenoid valve passage, and then enters the hydrogen sulfide gas to-be-measured cavity through the air inlet pipe. At this time, the motor controls the piston core The rod makes an extraction stroke, and then the piston head makes an extraction stroke. The one-way pressure relief valve discharges the original air in the hydrogen sulfide gas test chamber during the extraction stroke. The extraction stroke of the piston head helps the outside air to enter the hydrogen sulfide gas test chamber through the one-way air inlet valve. At this time, the hydrogen sulfide gas detector can detect the hydrogen sulfide gas concentration in the crude oil associated gas. If hydrogen sulfide gas is detected, the warning light will be on. When the extraction stroke of the piston head reaches the limit, the solenoid valve and its built-in controller adjust the timer to the timed closed circuit state. At this time, the motor controls the piston core rod to make a push-out stroke, and then the piston head makes a push-out stroke. The push-out stroke of the piston head helps the crude oil associated gas that has completed the detection of hydrogen sulfide gas concentration to be discharged from the hydrogen sulfide gas test chamber through the one-way air outlet valve. The crude oil associated gas that has completed the detection of hydrogen sulfide gas concentration is discharged to the gas pipe C section through the one-way air outlet valve, the air outlet pipe, and the air outlet. The crude oil associated gas that has completed the detection of hydrogen sulfide gas concentration flows through the manual valve passage of the gas pipe D section, the gas pipe D section, the gas-liquid mixing pipe, and the liquid outlet for discharge. When the liquid phase of the crude oil passes through the gas-liquid separation cylinder A and the lower part of the gas-liquid separation cylinder B and flows through the liquid pipe, the water content data of the liquid phase of the crude oil can be measured by using a water content detector. The liquid phase of the crude oil with measured water content data flows into the liquid quantity detection chamber through the liquid pipe. The instantaneous flow rate and cumulative flow rate of the liquid phase of the crude oil can be measured by using a liquid quantity detector provided on the top of the liquid quantity detection chamber. The liquid phase of the crude oil with measured instantaneous flow rate and cumulative flow rate passes through the gas-liquid mixing pipe and is discharged through the liquid outlet. A skid-mounted multiphase flow metering device can realize partial testing of associated gas and liquid phase in crude oil with reference to the above-mentioned operating conditions, and can realize detection of the concentration of hydrogen sulfide gas in the associated gas of crude oil. The device has the characteristics of stable operation and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of a skid-mounted multiphase flow metering device.

[0013] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of the overall components of hydrogen sulfide gas detection of a skid-mounted multiphase flow metering device.

[0014] Figure 3 The present invention is a schematic diagram of the cross-sectional structure of the overall components of a skid-mounted multiphase flow metering device for hydrogen sulfide gas detection.

[0015] In the figure: 1-liquid inlet, 2-buffer tube A, 3-buffer tube B, 4-gas-liquid separation cylinder A, 5-gas-liquid separation cylinder B, 6-gas pipe section A, 7-gas volume detection cavity, 8-gas volume detector, 9-gas pipe section B, 10-hydrogen sulfide gas detection integral component, 11-gas pipe section C, 12-gas pipe section D, 13-manual valve, 14-liquid pipe, 15-water content detector, 16-liquid volume detection cavity, 17-liquid volume detector, 18-gas-liquid mixing tube, 19-liquid outlet, 101-air inlet, 102-solenoid valve, 103-air inlet pipe, 104-hydrogen sulfide gas test chamber, 105-hydrogen sulfide gas detector, 106-warning light, 107-one-way air inlet valve, 108-air outlet pressure relief valve, 109-single-way air outlet valve, 110-air outlet pipe, 111-air outlet, 201-motor, 202-piston core rod, 203-piston head. DETAILED DESCRIPTION

[0016] The embodiment of the present invention provides a skid-mounted multiphase flow metering device, such as Figure 1 , Figure 2 , Figure 3As shown, a skid-mounted multiphase flow metering device includes a liquid inlet 1, a buffer pipe A2, a buffer pipe B3, a gas-liquid separation cylinder A4, a gas-liquid separation cylinder B5, a gas pipe A section 6, a gas volume detection cavity 7, a gas volume detector 8, a gas pipe B section 9, a hydrogen sulfide gas detection integral component 10, a gas pipe C section 11, a gas pipe D section 12, a manual valve 13, a liquid pipe 14, a water content detector 15, a liquid volume detection cavity 16, a liquid volume detector 17, a gas-liquid mixing pipe 18, and a liquid outlet 19. The liquid inlet 1 is the entrance for crude oil to enter the device. The buffer pipe includes a buffer pipe A2 and a buffer pipe B3. The buffer pipe is used to buffer a large amount of crude oil entering the device to prevent the device from being flooded due to excessive crude oil liquid. The gas-liquid separation cylinder includes a gas-liquid separation cylinder A 4. Gas-liquid separation cylinder B5, the gas-liquid separation cylinder is used to separate the associated gas and liquid phase substances in crude oil, the buffer tube A2 is connected to the gas-liquid separation cylinder A4, the buffer tube B3 is connected to the gas-liquid separation cylinder B5, the gas pipe includes gas pipe section A 6, gas pipe section B 9, gas pipe section C 11, gas pipe section D 12, the gas pipe is the passage of the associated gas in crude oil, the gas pipe section A 6 is connected to the gas volume detection cavity 7, the gas volume detection cavity 7 is provided with a gas volume detector 8 on the top, the gas volume detector 8 is used to detect the instantaneous flow and cumulative flow of the associated gas in crude oil, the gas pipe section B 9 is connected to the gas volume detection cavity 7, the hydrogen sulfide gas detection integral component 10 includes an air inlet 101, a solenoid valve 102, an air inlet pipe 103, a hydrogen sulfide gas to be tested cavity 104, a sulfur The invention relates to a hydrogen sulfide gas detector 105, a warning light 106, a one-way air outlet valve A107, an air outlet pressure relief valve 108, a one-way air outlet valve 109, an air outlet pipe 110, an air outlet 111, a motor 201, a piston core rod 202, and a piston head 203. The air inlet 101 is connected to the air pipe section B 9, the air inlet 101 is connected to the solenoid valve 102, the solenoid valve 102 is connected to the air inlet pipe 103, the air inlet pipe 103 is connected to the hydrogen sulfide gas test chamber 104, the hydrogen sulfide gas test chamber 104 is connected to the hydrogen sulfide gas detector 105, the hydrogen sulfide gas test chamber 104 is connected to the hydrogen sulfide gas detector 105, and a one-way air inlet valve 107 is provided at the bottom of the hydrogen sulfide gas detector 105. The one-way air inlet valve 107 is used to Introduce oxygen from the outside air and maintain the air pressure in the hydrogen sulfide gas test chamber 104 to be the same as that in the outside. The connection part of the hydrogen sulfide gas test chamber 104 is provided with an air outlet pressure relief valve 108, and the air outlet pressure relief valve 108 is used to discharge the original air in the hydrogen sulfide gas test chamber 104. The bottom of the air inlet pipe 103 is connected to a one-way air outlet valve 109, and the one-way air outlet valve 109 is connected to an air outlet pipe 110, and the air outlet pipe 110 is connected to an air outlet port 111. The motor 201 is connected to a piston core rod 202, and the piston core rod 202 is connected to a piston head 203. The air inlet port 101 in the hydrogen sulfide gas detection integral component 10 is connected to the air pipe B section 9, and the air outlet port 111 in the hydrogen sulfide gas detection integral component 10 is connected to the air pipe C section 11.The gas pipe section C 11 is connected to the gas pipe section D 12, and a manual valve 13 is provided in the gas pipe section D 12. The manual valve 13 is used to control the opening and closing of the crude oil associated gas through the gas pipe section D 12. The liquid pipe 14 is respectively connected to the bottom of the gas-liquid separation cylinder A4 and the gas-liquid separation cylinder B5 and the bottom of the liquid volume detection chamber 16. The liquid volume detection chamber 16 is connected to the gas-liquid mixing tube 18. The gas-liquid mixing tube 18 is respectively connected to the gas pipe section D 12 and the liquid outlet 19; the top of the liquid pipe 14 is provided with a water content detector 15. The water content detector 15 Used to detect the water content data of the liquid phase substance in the crude oil; the top of the liquid volume detection chamber 16 is provided with a liquid volume detector 17, and the liquid volume detector 17 is used to detect the instantaneous flow rate and cumulative flow rate of the liquid phase substance in the crude oil; the hydrogen sulfide gas detector 105 in the hydrogen sulfide gas detection integral component 10 is provided with a warning light 106, and when the hydrogen sulfide gas detector 105 in the hydrogen sulfide gas detection integral component 10 detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light 106 is on; the gas volume detector 8, the liquid volume detector 17 , the water content detector 15 is provided with an LED display screen on the outside; the solenoid valve 102 in the hydrogen sulfide gas detection integral component 10 is provided with a signal receiver, a controller and a timer, the signal receiver is used to receive the opening or closing instruction sent by the user terminal device, the controller is used to control the opening or closing of the solenoid valve 102, and the timer is used to realize the timing passage or timing closure of the solenoid valve 102; the hydrogen sulfide gas detector 105 in the hydrogen sulfide gas detection integral component 10 is used to detect the concentration of hydrogen sulfide gas, the hydrogen sulfide gas detector is a hydrogen sulfide gas detector that conforms to the electrochemical principle, the hydrogen sulfide gas detector 105 is provided with an LED display screen, an electrochemical sensor, and an integrated data processing circuit, and the integrated data processing circuit has data processing and data transmission functions; the gas volume detector 8, the liquid volume detector 17, and the water content detector 15 are all provided with a microprocessor, a data storage unit, and a signal transmission unit, the microprocessor is used to analyze data, the data storage unit is used to store data, and the signal transmission unit is used to send data. ,

[0017] The embodiment of the present invention is that when a skid-mounted multiphase flow metering device is in working state, crude oil flows into gas-liquid separation cylinder A4 and gas-liquid separation cylinder B5 through the liquid inlet 1, respectively, through the buffer pipe A2 and the buffer pipe B3, and the crude oil completes the separation of the crude oil liquid phase and the associated gas in the gas-liquid separation cylinder A4 and the gas-liquid separation cylinder B5, and the crude oil associated gas enters the gas volume detection chamber 7 through the gas pipe A section 6 connected to the top of the gas-liquid separation cylinder A4 and the gas-liquid separation cylinder B5. The instantaneous flow rate and the cumulative flow rate of the crude oil associated gas can be measured by the gas volume detector 8 provided on the top of the gas volume detection chamber 7. The crude oil associated gas of instantaneous flow and cumulative flow enters the hydrogen sulfide gas detection integral component 10 through the air pipe B section 9 connected to the gas volume detection chamber 7 through the air inlet 101 in the hydrogen sulfide gas detection integral component 10. The solenoid valve 102 in the hydrogen sulfide gas detection integral component 10 uses its own controller to adjust the timer to the timing passage state. The crude oil associated gas enters the air inlet pipe 103 through the solenoid valve 102 passage, and then enters the hydrogen sulfide gas to be tested chamber 104 through the air inlet pipe 103. At this time, the motor 201 controls the piston core rod 202 to make an extraction stroke, and then the piston head 2 03 performs the extraction stroke, the one-way pressure relief valve 108 discharges the original air in the hydrogen sulfide gas test chamber 104 during the extraction stroke, and the extraction stroke of the piston head 203 helps the outside air to enter the hydrogen sulfide gas test chamber 104 through the one-way air inlet valve 107. At this time, the hydrogen sulfide gas detector 105 can detect the concentration of hydrogen sulfide gas in the associated gas of crude oil. If hydrogen sulfide gas is detected, the warning light 106 will light up. When the extraction stroke of the piston head 203 reaches the limit, the solenoid valve 102 and its own controller adjust the timer to the timed closed circuit state. At this time, the motor 201 controls the piston core rod 2 02 makes an ejection stroke, and then the piston head 203 makes an ejection stroke. The ejection stroke of the piston head 203 helps the crude oil associated gas whose hydrogen sulfide gas concentration has been detected to be discharged from the hydrogen sulfide gas test chamber 104 through the one-way gas outlet valve 109. The crude oil associated gas whose hydrogen sulfide gas concentration has been detected is discharged to the gas pipe C section 11 through the one-way gas outlet valve 109, the gas outlet pipe 110, and the gas outlet 111. The crude oil associated gas whose hydrogen sulfide gas concentration has been detected flows through the manual valve 13 passage of the gas pipe D section 12, the gas pipe D section 12, the gas-liquid mixing pipe 18, and the liquid outlet 19 for discharge.When the liquid phase of the crude oil passes through the gas-liquid separation cylinder A4 and the lower part of the gas-liquid separation cylinder B5 and flows through the liquid pipe 14, the water content data of the liquid phase of the crude oil can be measured by using the water content detector 15. The liquid phase of the crude oil with the measured water content data flows into the liquid quantity detection chamber 16 through the liquid pipe 14. The instantaneous flow rate and the cumulative flow rate of the liquid phase of the crude oil can be measured by using the liquid quantity detector 17 provided on the top of the liquid quantity detection chamber 16. The liquid phase of the crude oil with the measured instantaneous flow rate and the cumulative flow rate passes through the gas-liquid mixing pipe 18 and is discharged from the liquid outlet 19. A skid-mounted multiphase flow metering device can realize the partial testing of the associated gas and liquid phase in the crude oil with reference to the above-mentioned operation conditions, and can realize the detection of the concentration of hydrogen sulfide gas in the associated gas of the crude oil.

[0018] The above are preferred embodiments of the present invention. It should be pointed out that a person skilled in the art may make several improvements and modifications without departing from the principles of the invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A skid-mounted multiphase flow metering device, characterized in that: It includes a liquid inlet, a buffer pipe, a gas-liquid separation cylinder, a gas pipe, a gas volume detection chamber, a gas volume detector, a hydrogen sulfide gas detection integral component, a manual valve, a liquid pipe, a water content detector, a liquid volume detection chamber, a liquid volume detector, a gas-liquid mixing pipe, and a liquid outlet. The liquid inlet is the entrance for crude oil to enter the device. The buffer pipe includes a buffer pipe A and a buffer pipe B. The buffer pipe is used to buffer a large amount of liquid crude oil entering the device to prevent the device from being flooded due to excessive crude oil liquid volume. The gas-liquid separation cylinder includes a gas-liquid separation cylinder A and a gas-liquid separation cylinder B. The gas-liquid separation cylinder is used to separate the associated gas and liquid phase substances in the crude oil. The buffer pipe A is connected to the gas-liquid separation cylinder. The gas-liquid separation cylinder A is connected to the buffer tube B, and the gas pipe includes a gas pipe section A, a gas pipe section B, a gas pipe section C, and a gas pipe section D. The gas pipe is a passage for the associated gas of crude oil. The gas pipe section A is connected to the gas volume detection cavity. A gas volume detector is provided on the top of the gas volume detection cavity. The gas volume detector is used to detect the instantaneous flow rate and cumulative flow rate of the associated gas in the crude oil. The gas pipe section B is connected to the gas volume detection cavity. The integral components of the hydrogen sulfide gas detection include an air inlet, a solenoid valve, an air inlet pipe, a hydrogen sulfide gas chamber to be tested, a hydrogen sulfide gas detector, a warning light, a one-way air outlet valve A, an air outlet pressure relief valve, a one-way air outlet valve, an air outlet pipe, an air outlet, and a motor. , piston core rod, and piston head, the air inlet is connected to section B of the air pipe, the air inlet is connected to the solenoid valve, the solenoid valve is connected to the air inlet pipe, the air inlet pipe is connected to the hydrogen sulfide gas test chamber, the hydrogen sulfide gas test chamber is connected to the hydrogen sulfide gas detector, a one-way air inlet valve is provided at the bottom of the hydrogen sulfide gas detector, the one-way air inlet valve is used to introduce oxygen from the outside air and maintain the air pressure in the hydrogen sulfide gas test chamber the same as that in the outside, an outlet pressure relief valve is provided at the connecting part of the hydrogen sulfide gas test chamber, the outlet pressure relief valve is used to discharge the original air in the hydrogen sulfide gas test chamber, the bottom of the air inlet pipe is connected to the one-way air outlet valve, the one-way air outlet valve Connect an air outlet pipe, the air outlet pipe is connected to the air outlet, the motor is connected to the piston core rod, the piston core rod is connected to the piston head, the air inlet in the hydrogen sulfide gas detection integral component is connected to the air pipe section B, the air outlet in the hydrogen sulfide gas detection integral component is connected to the air pipe section C, the air pipe section C is connected to the air pipe section D, a manual valve is provided in the air pipe section D, the manual valve is used to control the opening and closing of the crude oil associated gas through the air pipe section D, the liquid pipe is respectively connected to the bottom of the gas-liquid separation cylinder A, the gas-liquid separation cylinder B and the bottom of the liquid quantity detection cavity, the liquid quantity detection cavity is connected to the gas-liquid mixing pipe, and the gas-liquid mixing pipe is respectively connected to the air pipe section D and the liquid outlet.

2. A skid-mounted multiphase flow metering device according to claim 1, characterized in that: A water content detector is provided on the top of the liquid pipe, and the water content detector is used to detect the water content data of the liquid phase substance in the crude oil.

3. The skid-mounted multiphase flow metering device according to claim 1, characterized in that: A liquid quantity detector is provided on the top of the liquid quantity detection chamber, and the liquid quantity detector is used to detect the instantaneous flow rate and the cumulative flow rate of the liquid phase substance in the crude oil.

4. The skid-mounted multiphase flow metering device according to claim 1, characterized in that: The hydrogen sulfide gas detector is provided with a warning light, and the warning light turns on when the hydrogen sulfide gas detector detects that the crude oil associated gas contains hydrogen sulfide gas.

5. The skid-mounted multiphase flow metering device according to claim 1, characterized in that: The hydrogen sulfide gas detector, gas volume detector, liquid volume detector and water content detector are all provided with LED display screens on the outside.

6. The skid-mounted multiphase flow metering device according to claim 1, characterized in that: The solenoid valve in the hydrogen sulfide gas detection integral component is provided with a signal receiver, a controller and a timer. The signal receiver is used to receive an opening or closing instruction sent by a user terminal device, the controller is used to control the opening or closing of the solenoid valve, and the timer is used to realize a timed passage or a timed closure of the solenoid valve.

7. The skid-mounted multiphase flow metering device according to claim 1, characterized in that: The hydrogen sulfide gas detector in the hydrogen sulfide gas detection integral component is used to detect the concentration of hydrogen sulfide gas. The hydrogen sulfide gas detector is a hydrogen sulfide gas detector that conforms to the electrochemical principle. The hydrogen sulfide gas detector is provided with an LED display screen, an electrochemical sensor, and an integrated data processing circuit. The integrated data processing circuit has data processing and data transmission functions.

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