Oil-gas-water metering device

Abstract

The invention discloses an oil-gas-water metering device, and relates to the technical field of oil-gas field exploitation and treatment. The capacitance sensor is used for releasing a capacitance value, and the dielectric constant of the mixture can change along with the change of the moisture content due to different dielectric constants of the oil and the water; and the signal receiver is used for receiving the capacitance value change signal output by the capacitance sensor and converting the capacitance value change signal into a measurable electric signal. When the whole equipment is used, the temperature and air pressure of a substance are detected, adjustment is needed, the substance is kept in the optimal state, then the capacitance sensor accurately measures the moisture content in a mixture according to the difference between the dielectric constants of oil and water, the detection sensitivity and precision of signals are improved through amplification and filtering, and the detection accuracy of the oil-water mixture is improved. And subsequent data processing and analysis are facilitated, the measurement precision of the oil-gas-water three-phase fluid flow is improved, the metering error is reduced, and the accuracy of production data is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas field exploitation and processing, and in particular to an oil, gas and water metering device. Background Art

[0002] Oil, gas and water metering is an important part of oilfield development and production management. By accurately measuring the crude oil, natural gas production and water injection volume produced by the oilfield, the oilfield production can be accurately calculated, providing primary data for the underground dynamic analysis of the oilfield, so as to timely understand the production process and ensure product quality and safe operation. In the process of oil and gas field exploitation, accurate measurement of the three-phase flow of oil, gas and water in the oil well produced fluid is the core link to ensure production efficiency and efficient use of resources.

[0003] However, faced with extremely complex production conditions such as high pressure, high temperature and multiphase flow, traditional measurement devices often seem to be unable to cope with it, and there are significant problems such as limited measurement accuracy and insufficient adaptability. When dealing with complex conditions in oil and gas field production, traditional measurement devices are difficult to accurately measure the final real flow data, especially when accurately measuring the three-phase flow of oil, gas and water. Taking oil-liquid separation after gas-liquid separation as an example, in order to carry out precise subsequent operations, the oil and water contents in the liquid must be accurately monitored first. However, under the extreme environment of high temperature and high pressure, the substances extracted from the oil field will be in a high temperature and high pressure state, and the temperature, pressure, etc. will affect its measurement accuracy. This decrease in accuracy will not only lead to deviations in the measurement results of the oil and water content, but also have an adverse effect on the control and optimization of the entire production process. Specifically, the high temperature environment will cause thermal expansion of the equipment material, causing confusion and changes in the data of the measured material, thereby affecting its measurement accuracy. At the same time, the high pressure environment will also exert pressure on the internal structure of the measuring device, causing deformation or damage to the measuring element, further reducing the measurement accuracy. Summary of the invention

[0004] The object of the present invention is to provide an oil, gas and water metering device to solve the problem proposed in the above background technology that a high temperature environment will cause thermal expansion of equipment materials, causing abnormal occurrence of various data of the measured materials, thereby affecting its measurement accuracy.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an oil, gas and water metering device, comprising: a measuring mechanism; The measuring mechanism includes a moving plate, a capacitive sensor and a signal receiver; Two linkage rods are fixedly installed on one side of the outer wall of the movable plate, and pressure measuring instruments are fixedly installed on one side of the outer wall of the two linkage rods. A temperature detector is fixedly installed on one side of the outer wall of the movable plate, and a light spot measuring instrument is fixedly installed on one side of the outer wall of the movable plate; It is used to detect the changes of the temperature detector, and the moving plate squeezes the pressure measuring instrument during its movement to detect the air pressure inside it, so that the measuring mechanism can adjust the temperature and air pressure. Capacitive sensors, which work on releasing capacitance values, and because the dielectric constants of oil and water are different, the dielectric constant of the mixture changes with the change of water content; The signal receiver is used to receive the capacitance change signal output by the capacitance sensor and convert it into a measurable electrical signal.

[0006] Preferably, a detection tank is fixedly sleeved between the outer walls of the capacitive sensor and the signal receiver, and two built-in plates are fixedly connected to the inner wall of the detection tank. Sliding grooves are opened between the opposite sides of the two built-in plates, and the outer wall of the movable plate is slidably embedded in the two inner walls through a slider.

[0007] Preferably, a partition is fixedly installed on the inner surface wall of the detection tank, a one-way valve is fixedly inserted inside the partition, and two cavities are formed between the detection tank, the two built-in plates and a partition.

[0008] Preferably, the outer wall of the detection tank is fixedly connected to two circulation pipes, the input ends of the two circulation pipes are fixedly connected to a circulation pump B, a cooling component is fixedly connected between the input end and output end of the two circulation pumps B, a mounting plate is fixedly installed on the bottom of the cooling component, and the interior of the detection tank is fixedly connected to an air valve.

[0009] Preferably, the input end of the measuring mechanism is fixedly connected to an oil-gas separation mechanism; The oil-gas separation mechanism includes a separation box, a fixed disk is fixedly installed inside the separation box, a driving groove is opened on the top of the fixed disk, a built-in motor is fixedly installed at the top center of the fixed disk, a centrifugal plate is fixedly installed on the rotating end of the built-in motor, and the bottom of the centrifugal plate is slidably embedded in the driving groove through a slider.

[0010] Preferably, the input end of the separation box is fixedly connected to an input pipe, and an adsorber is fixedly installed near the top of the separation box.

[0011] Preferably, the bottom of the adsorber is fixedly connected to a gas filter, and the output end of the adsorber is fixedly connected to a gas output pipe.

[0012] Preferably, a group of locking disks are fixedly mounted on the outer wall of the separation box, and the outer walls of the input pipe and the gas output pipe are fixedly embedded inside the group of locking disks, and a circulation pump A is fixedly connected to the bottom of the separation box.

[0013] Preferably, the output end of the circulation pump A is fixedly connected to a transfer pipe, and the output end of the transfer pipe is fixedly connected to the input end of the detection tank.

[0014] Preferably, a general frame is fixedly installed at the bottom of the measuring mechanism, an oil extraction assembly is fixedly installed inside the general frame, and an inner surface wall of the general frame is fixedly connected to an outer surface wall of the mounting plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the whole device is in use, it first completes the detection of temperature and air pressure of the material, and needs to be adjusted to keep the material in the best state. Then the capacitive sensor uses the difference in dielectric constants of oil and water to accurately measure the moisture content in the mixture, and improves the detection sensitivity and accuracy of the signal through amplification and filtering, which is convenient for subsequent data processing and analysis, improves the measurement accuracy of the oil, gas and water three-phase fluid flow, reduces metering errors, and ensures the accuracy of production data.

[0016] 2. In the present invention, the centrifugal plate is driven to rotate by a built-in motor, and centrifugal force is used to achieve efficient separation of gas and liquid. The gas filter further ensures the separation effect, improves the efficiency and purity of gas-liquid separation, and provides a high-quality material basis for subsequent processing.

[0017] 3. In the present invention, the device utilizes a combination of a moving plate, a linkage rod and a pressure measuring instrument to convert air pressure into a quantifiable pressure detection value. At the same time, the temperature detector and the light spot measuring instrument work together to accurately measure the temperature carried by the substance, providing accurate data support for cooling and pressure reduction processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a formal structural plan view of an oil, gas and water metering device of the present invention; Figure 2 This is a main structural stereogram of an oil, gas and water metering device of the present invention; Figure 3 It is a partial structural stereogram of an oil, gas and water metering device of the present invention; Figure 4 It is a three-dimensional exploded view of some structures in an oil, gas and water metering device of the present invention; Figure 5 It is a side perspective view of a part of the structure of an oil, gas and water metering device of the present invention; Figure 6 This is a sectional three-dimensional exploded view of a measuring mechanism in an oil, gas and water metering device of the present invention; Figure 7 It is a three-dimensional diagram of a measuring mechanism in an oil, gas and water metering device of the present invention; Figure 8This is a three-dimensional diagram of the interior of a measuring mechanism in an oil, gas and water metering device of the present invention; Fig. 9 It is a side sectional plan view of a measuring mechanism in an oil, gas and water metering device of the present invention.

[0019] In the figure: 1. general frame; 2. oil extraction assembly; 3. oil-gas separation mechanism; 31. separation box; 32. fixed plate; 321. drive groove; 322. built-in motor; 323. centrifugal plate; 33. input pipe; 34. adsorber; 341. gas filter; 342. gas output pipe; 35. locking plate; 36. circulation pump A; 361. transfer pipe; 4. measuring mechanism; 41. mounting plate; 411. cooling assembly; 412. circulation pump B; 413. circulation pipe; 42. detection tank; 43. built-in plate; 431. sliding groove; 44. moving plate; 441. linkage rod; 442. pressure measuring instrument; 443. temperature detector; 444. light spot measuring instrument; 45. partition; 451. one-way valve; 46. gas valve; 47. capacitance sensor; 48. signal receiver. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the implementation rules described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1, refer to Figure 1-Figure 9 As shown: The present invention provides an oil, gas and water metering device, comprising: a measuring mechanism 4; The measuring mechanism 4 includes a moving plate 44, a capacitive sensor 47 and a signal receiver 48; Two linkage rods 441 are fixedly installed on one side of the outer wall of the movable plate 44, and pressure measuring instruments 442 are fixedly installed on one side of the outer wall of the two linkage rods 441, a temperature detector 443 is fixedly installed on one side of the outer wall of the movable plate 44, and a light spot measuring instrument 444 is fixedly installed on one side of the outer wall of the movable plate 44; It is used to detect the changes of the temperature detector 443, and the moving plate 44 squeezes the pressure measuring instrument 442 during the movement to detect the air pressure inside it, so that the measuring mechanism 4 can adjust the temperature and air pressure. Capacitive sensor 47, which acts to release the capacitance value, and because the dielectric constants of oil and water are different, the dielectric constant of the mixture will change with the change of water content; The signal receiver 48 is used to receive the capacitance change signal output by the capacitance sensor 47 and convert it into a measurable electrical signal.

[0021] In this embodiment, when a mixture containing different proportions of oil and water flows between the two metal plates inside, since oil and water have completely different dielectric constants, the overall dielectric constant of the mixture will change with the change of water content. This change in dielectric constant will directly cause the capacitance value output by the capacitance sensor 47 to change accordingly. In order to obtain such capacitance change, the signal receiver 48 receives the capacitance change signal from the capacitance sensor 47. During the receiving process, the signal receiver 48 converts these changes into quantifiable and measurable electrical signals through a series of precise circuit processing. At the same time, in order to enhance the received weak capacitance change signal, the signal receiver 48 is also equipped with an amplification circuit to provide High signal detection sensitivity. In addition, in order to ensure the accuracy of the signal, the signal receiver 48 also adopts filtering technology to filter out noise and interference in the signal. The analog signal after amplification and filtering will be sent to the analog-to-digital converter for conversion. The function of the analog-to-digital converter is to convert the analog signal into a digital signal for subsequent data processing and analysis. Through the close cooperation of these circuit components, the signal receiver 48 can efficiently and accurately receive and convert the capacitance value change signal output by the capacitance sensor 47. This conversion not only improves the accuracy of the detection data, but also provides strong support for subsequent data processing and analysis, thereby realizing the accurate measurement and further processing of the moisture content.

[0022] Embodiment 2, according to Figure 1 , Figure 2 as well as Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, The measuring mechanism 4 includes a moving plate 44, a capacitive sensor 47 and a signal receiver 48; Two linkage rods 441 are fixedly installed on one side of the outer wall of the movable plate 44, and pressure measuring instruments 442 are fixedly installed on one side of the outer wall of the two linkage rods 441, a temperature detector 443 is fixedly installed on one side of the outer wall of the movable plate 44, and a light spot measuring instrument 444 is fixedly installed on one side of the outer wall of the movable plate 44; A detection tank 42 is fixedly sleeved between the outer walls of the capacitive sensor 47 and the signal receiver 48, and the inner wall of the detection tank 42 is fixedly connected to two built-in plates 43, and sliding grooves 431 are opened between the opposite sides of the two built-in plates 43, and the outer wall of the movable plate 44 is slidably embedded in the two inner parts through a slider, and a partition 45 is fixedly installed on the inner wall of the detection tank 42, and a one-way valve 451 is fixedly inserted inside the partition 45, and two cavities are formed between the detection tank 42, the two built-in plates 43 and a partition 45, and the outer wall of the detection tank 42 is fixedly connected to two circulation pipes 413, and the input ends of the two circulation pipes 413 are fixedly connected to the circulation pump B412, and the input ends and output ends of the two circulation pumps B412 are fixedly connected with a cooling component 411, and the bottom of the cooling component 411 is fixedly installed with a mounting plate 41, and the inside of the detection tank 42 is fixedly connected with an air valve 46.

[0023] In this embodiment, when the substance is in a high temperature and high pressure state, the high temperature and high pressure gas will be introduced into between the two built-in plates 43 through the gas valve 46, thereby exerting an extrusion effect on the movable plate 44. The movable plate 44, as a transmission medium, will transmit this extrusion force to the two sets of linkage rods 441 and the pressure measuring instrument 442, and convert the gas pressure into a quantifiable pressure detection value. In this process, the temperature carried by the substance will also be measured by the temperature detector 443 at the same time. A red calibration point is set inside the temperature detector 443. This calibration point will move accordingly with the change of temperature. By detecting this moving calibration point through the light spot measuring instrument 444, the current temperature value can be accurately obtained. The external collection mechanism will be responsible for collecting and recording the data obtained by the pressure measuring instrument 442 and the temperature detector 443. After obtaining these data, relying on the detection After that, the material needs to be cooled and depressurized. In order to achieve cooling, the cooling component 411 will use the principle of compression refrigeration to cool the liquid. Subsequently, under the action of two circulating pumps B412, the cooled liquid will be transported to a cavity inside the detection tank 42. Inside this cavity, a set of one-way valves 451 are arranged, which can transfer the coolant from one cavity to another to achieve a more uniform cooling effect. After the coolant completes the cooling task in the cavity, it will be transported back to the cooling component 411 through two circulation pipes 413 for another cooling cycle. When the temperature and pressure of the material are adjusted to an optimal state, the various content indicators of the material inside it can be measured. This process will ensure that the most accurate data is obtained under the best conditions, providing strong support for subsequent analysis and research.

[0024] Embodiment 3, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 As shown, the input end of the measuring mechanism 4 is fixedly connected to the oil-gas separation mechanism 3; The oil-gas separation mechanism 3 includes a separation box 31, a fixed disk 32 is fixedly installed inside the separation box 31, a driving groove 321 is opened on the top of the fixed disk 32, a built-in motor 322 is fixedly installed at the center of the top of the fixed disk 32, a centrifugal plate 323 is fixedly installed at the rotating end of the built-in motor 322, and the bottom of the centrifugal plate 323 is slidably embedded in the driving groove 321 through a slider, the input end of the separation box 31 is fixedly connected with an input pipe 33, and an adsorber is fixedly installed near the top of the separation box 31 34, the bottom of the adsorber 34 is fixedly connected to a gas filter 341, the output end of the adsorber 34 is fixedly connected to a gas output pipe 342, a group of locking disks 35 are fixedly installed on the outer wall of the separation box 31, and the outer walls of the input pipe 33 and the gas output pipe 342 are fixedly embedded in the inside of the group of locking disks 35, the bottom of the separation box 31 is fixedly connected to a circulation pump A36, the output end of the circulation pump A36 is fixedly connected to a transfer pipe 361, and the output end of the transfer pipe 361 is fixedly connected to the input end of the detection tank 42; A general frame 1 is fixedly installed at the bottom of the measuring mechanism 4 , an oil extraction assembly 2 is fixedly installed inside the general frame 1 , and an inner surface wall of the general frame 1 is fixedly connected to an outer surface wall of the mounting plate 41 .

[0025] In this embodiment, when the device is in operation, the device will be started to extract the materials inside the well field into the oil extraction component 2 for storage. Subsequently, these materials are transported to the interior of the separation box 31 through the suction of the input pipe 33. When the material conversion is completed, the built-in motor 322 will drive its rotating end after the power is turned on, thereby driving the centrifugal plate 323 to rotate stably in the driving groove 321. During the rotation of the centrifugal plate 323, a strong centrifugal force will be generated. Since the centrifugal force on the liquid is greater than that on the gas, the liquid will be thrown to the wall of the cylinder and adhere to it. Subsequently, under the action of gravity, these liquids and gases are naturally separated. At the same time, The adsorber 34 located on the top of the separation box 31 will further play a role in sucking out the separated gas, thereby completing the gas-liquid separation process. In this process, the gas filter 341 can effectively block the small amount of liquid that may be contained in the gas inside the separation box 31, ensuring the high efficiency of gas-liquid separation. The separated gas is smoothly discharged through the gas output pipe 342. As for the material precipitation after gas-liquid separation, they will accumulate at the bottom of the separation box 31. At this time, the circulation pump A36 is started, and the transfer pipe 361 is used as a conveying path to transport these precipitated materials to the inside of the detection tank 42 for subsequent detection and analysis.

[0026] The working principle of the whole mechanism is as follows: first, when the equipment is in use, the material inside the well field is firstly drawn into the oil extraction component 2 for storage, and then the material can be transported to the inside of the separation box 31 under the suction of the input pipe 33. After the material transfer is completed, the built-in motor 322 is powered on, and its rotating end can drive the centrifugal plate 323 to rotate, and the centrifugal plate 323 is rotated and limited in the driving groove 321, which can maintain the stability of the rotation of the centrifugal plate 323. Then, a centrifugal force is generated during the rotation of the centrifugal plate 323. Since the centrifugal force on the liquid is greater than that on the gas, the liquid will collide with the wall of the cylinder and adhere to it, and then separation is achieved due to the action of gravity, and then under the adsorption of the adsorber 34 on the top, it can The gas therein can be extracted so as to realize gas-liquid separation. In this process, the gas filter 341 can isolate the liquid contained therein inside the separation box 31, thereby improving the efficiency of gas-liquid separation, and the separated gas can be discharged through the gas output pipe 342. The material after gas-liquid separation is deposited at the bottom of the separation box 31, and is transferred by the circulation pump A36, and the transfer pipe 361 is used as the conveying path to transfer the material to the interior of the detection tank 42. Then, when the material is in a high temperature and high pressure state, the high temperature and high pressure gas therein is transferred to the interior of the cavity through the air valve 46, thereby forming an extrusion on the movable plate 44, and the movable plate 44 is used as a medium to squeeze the two sets of linkage rods 441 and the pressure measuring instrument 442. Thereby, the air pressure is converted into pressure detection. In this pressure measurement process, the temperature carried therein can be measured by the temperature detector 443, and the red calibration point inside the temperature detector 443 can change with the change of temperature. Such temperature can be detected by the light spot measuring instrument 444. After the external collecting mechanism can measure the pressure and temperature, it needs to be cooled and depressurized. The cooling component 411 relies on the principle of compression refrigeration to cool the liquid, and then through the action of two circulating pumps B412, the cooled liquid can be transferred to the inside of one of the two cavities inside the detection tank 42, and a group of one-way valves 451 arranged inside it can transfer the coolant from one cavity to another. The liquid is transported to the interior of the cooling component 411 through the other of the two circulation pipes 413 for re-cooling. When the substance is maintained at an optimal temperature and pressure, it is necessary to measure various content indicators inside it. The capacitance sensor 47 is a key component for measuring moisture content. When a mixture containing different proportions of oil and water flows between the two metal plates, since oil and water have completely different dielectric constants, the overall dielectric constant of the mixture will change with the increase or decrease of moisture content. This change in dielectric constant will directly affect the capacitance value, causing the capacitance value output by the capacitance sensor 47 to change accordingly. The signal receiver 48 receives the capacitance change signal from the capacitance sensor 47 and processes it through a series of precise circuits.These changes are converted into quantifiable and measurable electrical signals, and amplified to enhance the received weak capacitance change signals to improve the detection sensitivity of the signals and ensure the purity and accuracy of the signals; finally, the analog-to-digital converter converts the amplified and filtered analog signals into digital signals for subsequent data processing and analysis. Through the coordinated work of these circuit components, the signal receiver 48 can efficiently and accurately receive and convert the capacitance value change signals output by the capacitance sensor 47, thereby achieving accurate measurement of the moisture content, improving the accuracy of the detection data, and facilitating subsequent further processing.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil, gas and water metering device, characterized in that: It includes: measuring mechanism (4); The measuring mechanism (4) comprises a moving plate (44), a capacitive sensor (47) and a signal receiver (48); Two linkage rods (441) are fixedly mounted on one side of the outer wall of the movable plate (44); pressure measuring instruments (442) are fixedly mounted on one side of the outer wall of the two linkage rods (441); a temperature detector (443) is fixedly mounted on one side of the outer wall of the movable plate (44); and a light spot measuring instrument (444) is fixedly mounted on one side of the outer wall of the movable plate (44); It is used to detect changes in the temperature detector (443), and the moving plate (44) forms an extrusion on the pressure measuring instrument (442) during the movement process to detect the air pressure inside the pressure measuring instrument, so that the measuring mechanism (4) can adjust the temperature and air pressure. A capacitive sensor (47) which acts to release a capacitance value, and since the dielectric constants of oil and water are different, the dielectric constant of the mixture changes with the change of water content; The signal receiver (48) is used to receive the capacitance value change signal output by the capacitance sensor (47) and convert it into a measurable electrical signal.

2. The oil, gas and water metering device according to claim 1, characterized in that: A detection tank (42) is fixedly sleeved between the outer walls of the capacitive sensor (47) and the signal receiver (48); two built-in plates (43) are fixedly connected to the inner wall of the detection tank (42); a sliding groove (431) is provided between opposite sides of the two built-in plates (43); and the outer wall of the movable plate (44) is slidably embedded in the two inner walls via a sliding block.

3. The oil, gas and water metering device according to claim 2, characterized in that: A partition (45) is fixedly mounted on the inner surface wall of the detection tank (42), a one-way valve (451) is fixedly inserted inside the partition (45), and two cavities are formed between the detection tank (42), the two built-in plates (43) and the partition (45).

4. The oil, gas and water metering device according to claim 3, characterized in that: The outer wall of the detection tank (42) is fixedly connected to two circulation pipes (413), the input ends of the two circulation pipes (413) are fixedly connected to a circulation pump B (412), a cooling component (411) is fixedly connected between the input ends and output ends of the two circulation pumps B (412), a mounting plate (41) is fixedly mounted on the bottom of the cooling component (411), and the interior of the detection tank (42) is fixedly connected to an air valve (46).

5. The oil, gas and water metering device according to claim 4, characterized in that: The input end of the measuring mechanism (4) is fixedly connected to the oil-gas separation mechanism (3); The oil-gas separation mechanism (3) comprises a separation box (31), a fixed disk (32) is fixedly installed inside the separation box (31), a rotation driving groove (321) is opened on the top of the fixed disk (32), a built-in motor (322) is fixedly installed at the center of the top of the fixed disk (32), a centrifugal plate (323) is fixedly installed at the rotating end of the built-in motor (322), and the bottom of the centrifugal plate (323) is slidably embedded in the inside of the rotation driving groove (321) through a slider.

6. The oil, gas and water metering device according to claim 5, characterized in that: The input end of the separation box (31) is fixedly connected to an input pipe (33), and an adsorber (34) is fixedly installed near the top of the separation box (31).

7. The oil, gas and water metering device according to claim 6, characterized in that: The bottom of the adsorber (34) is fixedly connected to a gas filter (341), and the output end of the adsorber (34) is fixedly connected to a gas output pipe (342).

8. The oil, gas and water metering device according to claim 7, characterized in that: A group of locking disks (35) are fixedly mounted on the outer wall of the separation box (31), and the outer walls of the input pipe (33) and the gas output pipe (342) are fixedly embedded inside the group of locking disks (35). The bottom of the separation box (31) is fixedly connected to a circulation pump A (36).

9. The oil, gas and water metering device according to claim 8, characterized in that: The output end of the circulation pump A (36) is fixedly connected to a transfer pipe (361), and the output end of the transfer pipe (361) is fixedly connected to the input end of the detection tank (42).

10. The oil, gas and water metering device according to claim 4, characterized in that: A general frame (1) is fixedly mounted on the bottom of the measuring mechanism (4), an oil extraction assembly (2) is fixedly mounted inside the general frame (1), and an inner surface wall of the general frame (1) is fixedly connected to an outer surface wall of the mounting plate (41).

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