Multi-phase flow metering and detecting device for oil well

Abstract

The utility model relates to the technical field of petroleum equipment, in particular to a multiphase flow metering and detecting device for an oil well. Comprising a liquid inlet, a gas-liquid separation cylinder, a gas pipe, a gas amount detection cavity, a gas amount detector, a manual valve, a gas-liquid mixing pipe, a liquid outlet, a moisture content detector, a liquid pipe, a sewage discharge pressure relief opening, a liquid amount detection cavity, a liquid amount detector, an electromagnetic valve, a hydrogen sulfide gas detection cavity, a one-way gas valve, a hydrogen sulfide gas detector, a warning lamp, a motor assembly and a motor push rod assembly. The device can be used for measuring associated gas and liquid-phase substances in crude oil by sections, can be used for determining whether to detect hydrogen sulfide gas in the associated gas in the crude oil or not according to actual detection requirements, and has the characteristics of simple structure, stability in operation and convenience in use.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum equipment technical field, especially relate to a kind of oil well multiphase flow metering detection device. BACKGROUND

[0002] The existing oil well multiphase flow metering detection device has certain limitations in precision and stability, especially in complex multiphase flow environment, it is difficult to accurately detect and measure different phase fluids. In order to solve this problem, a new type of oil well multiphase flow metering detection device is proposed, which has higher precision and stability. SUMMARY

[0003] To solve the above technical problems and achieve the above technical features, the utility model adopts the following technical scheme:

[0004] The utility model provides a kind of oil well multiphase flow metering detection device, including liquid inlet, gas-liquid separation cylinder, gas pipe, gas volume detection chamber, gas volume detector, hand valve, gas-liquid mixing pipe, liquid outlet, water cut detector, liquid pipe, sewage pressure release port, liquid volume detection chamber, liquid volume detector, solenoid valve, hydrogen sulfide gas detection chamber, one-way air valve, hydrogen sulfide gas detector, warning light, motor assembly, motor push rod assembly composition, the liquid inlet is the entrance of crude oil into the device;The gas-liquid separation cylinder is connected liquid inlet, and the gas-liquid separation cylinder is used to separate liquid phase material in crude oil and associated gas;The gas pipe is the flow channel of associated gas of crude oil, and the gas pipe includes gas pipe A section, gas pipe B section, gas pipe C section;The gas pipe A section is connected gas-liquid separation cylinder top, solenoid valve, gas volume detection chamber respectively;The gas volume detection chamber is connected gas pipe A section, gas pipe C section respectively, and the gas volume detection chamber is the detection area of the flow of associated gas of crude oil;The gas volume detector is located in the top of gas volume detection chamber, and the gas volume detector is used to detect the instantaneous flow and cumulative flow of associated gas of crude oil;The hand valve is connected gas pipe C section, and the hand valve is used to control associated gas of crude oil through gas pipe C section;The gas-liquid mixing pipe is connected liquid volume detection chamber, gas pipe C section respectively, and the gas-liquid mixing pipe is the passage of liquid phase material and associated gas of crude oil;The liquid outlet is connected gas-liquid mixing pipe, and the liquid outlet is the outlet of crude oil from the device;The water cut detector is arranged in the lower part of gas-liquid separation cylinder, and the water cut detector is used to detect the water content data of liquid phase material of crude oil;The liquid pipe is connected the bottom of gas-liquid separation cylinder, and the liquid pipe is the flow channel of liquid phase material of crude oil;The sewage pressure release port is located in the middle section of liquid pipe, and the sewage pressure release port is used to release the pressure and impurities in the pipeline of the device;The liquid volume detection chamber is connected liquid pipe, gas-liquid mixing pipe respectively, and the liquid volume detection chamber is the detection area of the flow of liquid phase material of crude oil;The liquid volume detector is located in the top of liquid volume detection chamber, and the liquid volume detector is used to detect the instantaneous flow and cumulative flow of liquid phase material of crude oil;The solenoid valve is connected gas pipe A section, hydrogen sulfide gas detection chamber respectively, and the solenoid valve is used to control associated gas of crude oil into hydrogen sulfide gas detection chamber;The hydrogen sulfide gas detection chamber is connected solenoid valve, gas pipe B section, motor push rod assembly respectively, and the hydrogen sulfide gas detection chamber is the detection area whether associated gas of crude oil contains hydrogen sulfide gas;The one-way air valve is communicated hydrogen sulfide gas detection chamber, and the one-way air valve is used to make outside air one-way into hydrogen sulfide gas detection chamber;The hydrogen sulfide gas detector is connected hydrogen sulfide gas detection chamber, and the hydrogen sulfide gas detector is used to detect whether associated gas of crude oil contains hydrogen sulfide gas.

[0005] Further, the hydrogen sulfide gas detector is provided with warning light, when detecting that associated gas of crude oil contains hydrogen sulfide gas, warning light is bright.

[0006] Further, the motor push rod assembly is connected with a motor assembly, the motor assembly controls the motor push rod assembly to make push-pull movement, and the motor assembly drives the motor push rod assembly to make push-pull movement, and the function is to realize the extraction of the crude oil associated gas of the measured hydrogen sulfide gas to the hydrogen sulfide gas detection cavity and the discharge of the crude oil associated gas of the measured hydrogen sulfide gas from the hydrogen sulfide gas detection cavity.

[0007] Further, the hydrogen sulfide gas detector, the gas volume detector, the liquid volume detector and the water content detector are all externally provided with LED display screens.

[0008] Further, the hydrogen sulfide gas detector, the gas volume detector, the liquid volume detector and the water content detector are all internally provided with microprocessors, data storage units and signal transmission units, the microprocessors are used for analyzing data, the data storage units are used for storing data, and the signal transmission units are used for sending data.

[0009] The utility model discloses beneficial effect is: when one kind oil well multiphase flow metering detection device is in working condition, the crude oil flows into the gas -liquid separation cylinder through the liquid inlet, and the crude oil completes the separation of crude oil liquid phase material and associated gas in the gas -liquid separation cylinder, and the water cut detector can be used to measure the water cut data of crude oil liquid phase material when the crude oil liquid phase material passes through the lower part of the gas -liquid separation cylinder, and the liquid phase material of the measured crude oil water cut data flows into the liquid quantity detection chamber through the liquid pipe connected at the bottom of the gas -liquid separation cylinder, and the liquid quantity detector provided at the top of the liquid quantity detection chamber can be used to measure the instantaneous flow and the cumulative flow of crude oil liquid phase material, and the crude oil liquid phase material of the measured instantaneous flow and the cumulative flow is discharged through the liquid outlet after passing through the gas -liquid mixing pipe, and the crude oil associated gas enters the gas quantity detection chamber through the gas pipe A section connected at the top of the gas -liquid separation cylinder, and the gas quantity detector provided at the top of the gas quantity detection chamber can be used to measure the instantaneous flow and the cumulative flow of crude oil associated gas, and the crude oil associated gas of the measured instantaneous flow and the cumulative flow is discharged through the gas pipe C section connected at the gas quantity detection chamber, the manual valve passage, the gas -liquid mixing pipe and the liquid outlet, and if it is necessary to use the device to detect whether the crude oil associated gas contains hydrogen sulfide gas, then the electromagnetic valve is adjusted to the passage state, the crude oil associated gas enters the hydrogen sulfide gas detection chamber through the electromagnetic valve passage, in order to effectively realize the detection of crude oil associated gas in the hydrogen sulfide gas detection chamber, the motor assembly driving motor push rod assembly needs to do push -and -pull movement, and the hydrogen sulfide gas detection instrument can be used to measure whether the crude oil associated gas contains hydrogen sulfide gas by using the motor push rod assembly to extract the crude oil associated gas into the hydrogen sulfide gas detection chamber, and at the same time, the one-way air valve unidirectionally introduces the outside air into the hydrogen sulfide gas detection chamber, which can prevent the gas pressure difference between the inside and outside of the hydrogen sulfide gas detection chamber from causing the crude oil associated gas to be extracted into the hydrogen sulfide gas detection chamber, and the hydrogen sulfide gas detection instrument can be used to measure whether the crude oil associated gas contains hydrogen sulfide gas by using the hydrogen sulfide gas detection instrument, and if it contains hydrogen sulfide gas, the warning light is bright, and the crude oil associated gas of the measured hydrogen sulfide gas is discharged to the gas pipe B section connected at the hydrogen sulfide gas detection chamber by using the motor push rod assembly push discharge stroke, and the crude oil associated gas of the measured hydrogen sulfide gas flows through the gas pipe B section, the gas pipe C section, the manual valve passage, the gas -liquid mixing pipe and the liquid outlet. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a kind of oil well multiphase flow metering detection device's three-dimensional structure schematic diagram.

[0011] In the figure: 1 - liquid inlet, 2 - gas-liquid separation cylinder, 3 - gas pipe A section, 4 - gas volume detection cavity, 5 - gas volume detector, 6 - gas pipe C section, 7 - manual valve, 8 - gas-liquid mixing pipe, 9 - liquid outlet, 10 - moisture content detector, 11 - liquid pipe, 12 - sewage pressure relief port, 13 - liquid volume detection cavity, 14 - liquid volume detector, 15 - electromagnetic valve, 16 - hydrogen sulfide gas detection cavity, 17 - one-way air valve, 18 - hydrogen sulfide gas detector, 19 - warning light, 20 - motor assembly, 21 - motor push rod assembly, 22 - gas pipe B section. DETAILED DESCRIPTION

[0012] The utility model embodiment provides a kind of oil well multiphase flow metering detection device, such as Figure 1As shown, a kind of oil well multiphase flow metering detection device includes inlet 1, gas-liquid separation cylinder 2, gas pipe A section 3, gas volume detection cavity 4, gas volume detector 5, gas pipe C section 6, manual valve 7, gas-liquid mixing pipe 8, outlet 9, water cut detector 10, liquid pipe 11, sewage pressure release port 12, liquid volume detection cavity 13, liquid volume detector 14, electromagnetic valve 15, hydrogen sulfide gas detection cavity 16, one-way air valve 17, hydrogen sulfide gas detector 18, warning light 19, motor assembly 20, motor push rod assembly 21, gas pipe B section 22, the inlet 1 is the entrance of crude oil into the device;The gas-liquid separation cylinder 2 is connected to inlet 1, and the gas-liquid separation cylinder 2 is used to separate the liquid phase material in crude oil from associated gas;The gas pipe is the flow channel of associated gas of crude oil, and the gas pipe includes gas pipe A section 3, gas pipe B section 22 and gas pipe C section 6;The gas pipe A section 3 is respectively connected to the top of the gas-liquid separation cylinder 2, the electromagnetic valve 15 and the gas volume detection cavity 4;The gas volume detection cavity 4 is respectively connected to the gas pipe A section 3 and the gas pipe C section 6, and the gas volume detection cavity 4 is the detection area of the flow of associated gas of crude oil;The gas volume detector 5 is located at the top of the gas volume detection cavity 4, and the gas volume detector 5 is used to detect the instantaneous flow and cumulative flow of associated gas of crude oil;The manual valve 7 is connected to the gas pipe C section 6, and the manual valve 7 is used to control the passage of associated gas of crude oil through the gas pipe C section 6;The gas-liquid mixing pipe 8 is respectively connected to the liquid volume detection cavity 13 and the gas pipe C section 6, and the gas-liquid mixing pipe 8 is the passage of liquid phase material of crude oil and associated gas;The outlet 9 is connected to the gas-liquid mixing pipe 8, and the outlet 9 is the outlet of crude oil from the device;The water cut detector 10 is arranged at the lower part of the gas-liquid separation cylinder 2, and the water cut detector 10 is used to detect the water cut data of the liquid phase material of crude oil;The liquid pipe 11 is connected to the bottom of the gas-liquid separation cylinder 2, and the liquid pipe 11 is the flow channel of the liquid phase material of crude oil;The sewage pressure release port 12 is located at the middle section of the liquid pipe 11, and the sewage pressure release port 12 is used to release the pressure and impurities in the pipeline of the device;The liquid volume detection cavity 13 is respectively connected to the liquid pipe 11 and the gas-liquid mixing pipe 8, and the liquid volume detection cavity 13 is the detection area of the flow of the liquid phase material of crude oil;The liquid volume detector 14 is located at the top of the liquid volume detection cavity 13, and the liquid volume detector 14 is used to detect the instantaneous flow and cumulative flow of the liquid phase material of crude oil;The electromagnetic valve 15 is respectively connected to the gas pipe A section 3 and the hydrogen sulfide gas detection cavity 16, and the electromagnetic valve 15 is used to control the passage of associated gas of crude oil into the hydrogen sulfide gas detection cavity 16;The hydrogen sulfide gas detection cavity 16 is respectively connected to the electromagnetic valve 15, the gas pipe B section 22 and the motor push rod assembly 21, and the hydrogen sulfide gas detection cavity 16 is the detection area for detecting whether hydrogen sulfide gas exists in associated gas of crude oil;The one-way air valve 17 is connected to the hydrogen sulfide gas detection cavity 16, and the one-way air valve 17 is used to make the outside air enter the hydrogen sulfide gas detection cavity 16 in one direction.The hydrogen sulfide gas detector 18 is connected to the hydrogen sulfide gas detection chamber 16, and is used to detect whether the crude oil associated gas contains hydrogen sulfide gas; the hydrogen sulfide gas detector 18 is provided with a warning light 19, which is bright when detecting that the crude oil associated gas contains hydrogen sulfide gas; the motor push rod assembly 21 is connected to the motor assembly 20, the motor assembly 20 controls the motor push rod assembly 21 to do push-pull movement, and the function of the motor assembly 20 driving the motor push rod assembly 21 to do push-pull movement is to realize the extraction of the crude oil associated gas containing the to-be-tested hydrogen sulfide gas into the hydrogen sulfide gas detection chamber 16 and the discharge of the crude oil associated gas containing the measured hydrogen sulfide gas out of the hydrogen sulfide gas detection chamber 16; the hydrogen sulfide gas detector 18, the gas quantity detector 5, the liquid quantity detector 14 and the water content detector 10 are all externally provided with LED display screens; the hydrogen sulfide gas detector 18, the gas quantity detector 5, the liquid quantity detector 14 and the water content detector 10 are all internally provided with microprocessors, data storage units and signal transmission units, the microprocessors are used to analyze data, the data storage units are used to store data, and the signal transmission units are used to send data.

[0013] The embodiment of the utility model is when one kind oil well multiphase flow metering detection device is in working condition, crude oil flows into gas liquid separation cylinder 2 through liquid inlet 1, and the separation of crude oil liquid phase material and associated gas is completed in gas liquid separation cylinder 2, the water cut detector 10 can be used to measure the water cut data of crude oil liquid phase material when crude oil liquid phase material passes through the lower part of gas liquid separation cylinder 2, the liquid pipe 11 connected at the bottom of gas liquid separation cylinder 2 is used to flow into the liquid quantity detection cavity 13, the liquid quantity detector 14 provided at the top of liquid quantity detection cavity 13 can be used to measure the instantaneous flow and cumulative flow of crude oil liquid phase material, and the crude oil liquid phase material with measured instantaneous flow and cumulative flow is discharged through the liquid outlet 9 after passing through gas liquid mixing pipe 8, the associated gas of crude oil enters the gas quantity detection cavity 4 through the gas pipe A section 3 connected at the top of gas liquid separation cylinder 2, the gas quantity detector 5 provided at the top of gas quantity detection cavity 4 can be used to measure the instantaneous flow and cumulative flow of the associated gas of crude oil, and the associated gas of crude oil with measured instantaneous flow and cumulative flow is discharged through the gas pipe C section 6 connected at the gas quantity detection cavity 4, the manual valve 7 passage, the gas liquid mixing pipe 8 and the liquid outlet 9, if it is needed to use the device to detect whether the associated gas of crude oil contains hydrogen sulfide gas, the electromagnetic valve 15 is adjusted to the passage state, the associated gas of crude oil enters the hydrogen sulfide gas detection cavity 16 through the passage of the electromagnetic valve 15, in order to effectively realize the detection of the associated gas of crude oil in the hydrogen sulfide gas detection cavity 16, the motor assembly 20 is needed to drive the motor push rod assembly 21 to do the push-pull movement, the motor push rod assembly 21 is used to pull the stroke to extract the associated gas of crude oil into the hydrogen sulfide gas detection cavity 16, at the same time, the one-way air valve 17 is used to introduce the outside air into the hydrogen sulfide gas detection cavity 16 in one way, which can prevent the gas pressure difference between the inside and outside of the hydrogen sulfide gas detection cavity 16 from causing the associated gas of crude oil to be unable to be extracted into the hydrogen sulfide gas detection cavity 16, the associated gas of crude oil entering the hydrogen sulfide gas detection cavity 16 can be used to detect whether the associated gas of crude oil contains hydrogen sulfide gas by using the hydrogen sulfide gas detector 18, if it contains hydrogen sulfide gas, the warning light 19 is bright, the associated gas of crude oil after hydrogen sulfide gas detection is discharged to the gas pipe B section 22 connected at the hydrogen sulfide gas detection cavity 16 by using the push discharge stroke of the motor push rod assembly 21, and the associated gas of crude oil after hydrogen sulfide gas detection flows through the gas pipe B section 22, the gas pipe C section 6, the manual valve 7 passage, the gas liquid mixing pipe 8 and the liquid outlet 9 to be discharged.

[0014] The above is the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. An oil well multiphase flow metering device, characterized in that, The device comprises a liquid inlet, a gas-liquid separation cylinder, a gas pipe, a gas volume detection chamber, a gas volume detector, a manual valve, a gas-liquid mixing pipe, a liquid outlet, a water content detector, a liquid pipe, a sewage pressure relief port, a liquid volume detection chamber, a liquid volume detector, a solenoid valve, a hydrogen sulfide gas detection chamber, a one-way air valve, a hydrogen sulfide gas detector, a warning light, a motor assembly, and a motor push rod assembly.

2. The apparatus of claim 1, wherein, The liquid inlet is the entrance of crude oil into the device. The gas-liquid separation cylinder is connected to the liquid inlet and is used to separate the liquid phase substances in the crude oil from the associated gas. The gas pipe is a passage for the associated gas of the crude oil and comprises a gas pipe A section, a gas pipe B section, and a gas pipe C section. The gas pipe A section is connected to the top of the gas-liquid separation cylinder, the solenoid valve, and the gas volume detection chamber. The gas volume detection chamber is connected to the gas pipe A section and the gas pipe C section and is a detection area for the flow rate of the associated gas of the crude oil. The gas volume detector is located at the top of the gas volume detection chamber and is used to detect the instantaneous flow rate and the cumulative flow rate of the associated gas of the crude oil. The manual valve is connected to the gas pipe C section and is used to control the passage of the associated gas of the crude oil through the gas pipe C section. The gas-liquid mixing pipe is connected to the liquid volume detection chamber and the gas pipe C section and is a passage for the liquid phase substances of the crude oil and the associated gas. The liquid outlet is connected to the gas-liquid mixing pipe and is the exit of the crude oil from the device. The water content detector is located at the lower part of the gas-liquid separation cylinder and is used to detect the water content data of the liquid phase substances of the crude oil. The liquid pipe is connected to the bottom of the gas-liquid separation cylinder and is a passage for the liquid phase substances of the crude oil. The sewage pressure relief port is located at the middle section of the liquid pipe and is used to release the pressure and impurities in the pipeline of the device. The liquid volume detection chamber is connected to the liquid pipe and the gas-liquid mixing pipe and is a detection area for the flow rate of the liquid phase substances of the crude oil. The liquid volume detector is located at the top of the liquid volume detection chamber and is used to detect the instantaneous flow rate and the cumulative flow rate of the liquid phase substances of the crude oil. The solenoid valve is connected to the gas pipe A section and the hydrogen sulfide gas detection chamber and is used to control the passage of the associated gas of the crude oil into the hydrogen sulfide gas detection chamber. The hydrogen sulfide gas detection chamber is connected to the solenoid valve, the gas pipe B section, and the motor push rod assembly and is a detection area for detecting whether the associated gas of the crude oil contains hydrogen sulfide gas. The one-way air valve is connected to the hydrogen sulfide gas detection chamber and is used to allow external air to enter the hydrogen sulfide gas detection chamber in one direction. The hydrogen sulfide gas detector is connected to the hydrogen sulfide gas detection chamber and is used to detect whether the associated gas of the crude oil contains hydrogen sulfide gas. The hydrogen sulfide gas detector is provided with a warning light that lights up when hydrogen sulfide gas is detected in the associated gas of the crude oil.

3. The apparatus of claim 1, wherein, The motor push rod assembly is connected with a motor assembly, the motor assembly controls the motor push rod assembly to make push-pull movement, and the motor assembly drives the motor push rod assembly to make push-pull movement, and the function of the motor assembly is to realize extraction of crude oil associated gas of measured hydrogen sulfide gas to a hydrogen sulfide gas detection chamber and discharge of crude oil associated gas of measured hydrogen sulfide gas from the hydrogen sulfide gas detection chamber.

4. The apparatus of claim 1, wherein, The hydrogen sulfide gas detector, the gas volume detector, the liquid volume detector and the water content detector are externally provided with LED display screens.

5. The apparatus of claim 1, wherein, The hydrogen sulfide gas detector, the gas volume detector, the liquid volume detector and the water content detector are internally provided with microprocessors, data storage units and signal transmission units, the microprocessors are used for analyzing data, the data storage units are used for storing data, and the signal transmission units are used for transmitting data.

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