A metering oil well tubing assembly

Abstract

The application provides an oil well pipeline assembly for metering, which comprises a first oil well, a gas-liquid separator, a weighing volume pipe and a first merging pipe module; the gas-liquid separator is communicated with the first oil well; the weighing volume pipe is communicated with the gas-liquid separator; the weighing volume pipe is used for containing the first liquid output through a second pipeline; the first merging pipe module comprises a first gas branch pipe, a first liquid branch pipe and a first merging pipe; the first merging pipe is communicated with the gas-liquid separator through the first gas branch pipe, communicated with the weighing volume pipe through the first liquid branch pipe, and converges the first gas input through the first gas branch pipe and the first liquid input through the first liquid branch pipe; and an output pipe is communicated with the first merging pipe through a third pipeline, so that the gas-liquid separation control is realized through the first gas branch pipe and the first liquid branch pipe, the data of the liquid phase mass flow rate through the weighing volume pipe is determined and reliable, and the liquid phase metering error of the oil well pipeline assembly for metering is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of oil well pipeline assemblies for metering, and more particularly to an oil well pipeline assembly for metering. Background Technology

[0002] With the development of technology, single-well metering devices for gas-liquid separation achieve gas-liquid two-phase separation through the combined action of centrifugal force, gravity, and buoyancy. The oil well pipeline assembly used for metering is part of this single-well metering device. In existing technology, the current oil well pipeline assembly for metering includes a first oil well, a gas-liquid separator, and a pipeline. The gas-liquid separator is connected to the first oil well, and the pipeline is connected to the gas-liquid separator. However, the transport of liquid and gas within the same pipeline makes separate control impossible, resulting in significant liquid phase metering errors in the existing oil well pipeline assembly. Utility Model Content

[0003] The purpose of this utility model is to provide an oil well pipeline assembly for metering. A gas-liquid separator is disposed on one side of a first oil well and connected to the first oil well. The gas-liquid separator is connected to the first oil well via a first pipe. The gas-liquid separator is used to separate the mixture output from the first oil well, separating a first gas and a first liquid. A weighing volume tube is disposed on one side of the gas-liquid separator and connected to the gas-liquid separator. The weighing volume tube is connected to the gas-liquid separator via a second pipe. The weighing volume tube is used to contain the first liquid output from the second pipe. A weighing sensor is connected to the lower side of the weighing volume tube, and weighing is performed by the weighing sensor. The first confluence pipe module includes a first gas branch pipe and a first liquid... The system includes a branch pipe and a first manifold pipe. The first manifold pipe is located outside the gas-liquid separator. It connects to the gas-liquid separator via a first gas branch pipe and to a weighing volume pipe via a first liquid branch pipe. The first manifold pipe collects the first gas input via the first gas branch pipe and the first liquid input via the first liquid branch pipe. An output pipe is located on one side of the first manifold pipe and is connected to it via a third pipe. This facilitates separate control of gas and liquid through the first gas branch pipe and the first liquid branch pipe. Simultaneously, the weighing volume pipe ensures the determinism and reliability of the liquid phase mass flow rate data, reducing the liquid phase metering error of the oil well pipeline components used for metering.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil well pipeline assembly for metering, comprising: First oil well; A gas-liquid separator is disposed on one side of the first oil well and connected to the first oil well; the gas-liquid separator is connected to the first oil well through a first pipeline; the gas-liquid separator is used to separate the mixture output from the first oil well to separate a first gas and a first liquid. A weighing volume tube is disposed on one side of the gas-liquid separator and connected to the gas-liquid separator; the weighing volume tube is connected to the gas-liquid separator through a second pipe; the weighing volume tube is used to contain the first liquid output through the second pipe; a weighing sensor is connected to the lower side of the weighing volume tube, and the weighing is performed by the weighing sensor; The first manifold module includes a first gas branch pipe, a first liquid branch pipe, and a first manifold; the first manifold is disposed outside the gas-liquid separator; the first manifold is connected to the gas-liquid separator through the first gas branch pipe, and the first manifold is connected to the weighing volume pipe through the first liquid branch pipe; the first manifold gathers the first gas input through the first gas branch pipe and the first liquid input through the first liquid branch pipe. An output pipe is located on one side of the first confluence pipe and is connected to the first confluence pipe via a third pipe.

[0005] Optionally, the first pipeline is connected to a multi-way selector valve, which has a first branch and a second branch. The first branch is connected to the first pipeline; The second branch is connected to a fourth pipe, which extends along the second branch toward the output pipe and converges with the first confluence pipe to connect to the output pipe.

[0006] Optionally, the multi-way valve is further provided with a third branch, wherein the third branch, the second branch and the first branch can be selectively opened; The well pipeline assembly used for metering also includes a second well; The second oil well is connected to the third branch via the fifth pipeline, or the second oil well is directly connected to the first oil well via the sixth pipeline.

[0007] Optionally, the first pipe is connected to a temperature sensor and a pressure sensor, which are arranged along the extension direction of the first pipe and act sequentially on different positions of the first pipe.

[0008] Optionally, the second pipe is a flexible pipe; One end of the second pipe is connected to the drain port of the gas-liquid separator, and the other end of the second pipe is connected to the inlet of the weighing volume tube; the weighing volume tube is arranged in a circular tube shape and is arranged in the vertical direction.

[0009] Optionally, the outer wall of the weighing volume tube contacts the weighing end of the weighing sensor.

[0010] Optionally, there are multiple weighing sensors, which are distributed at different positions on the outer side wall of the weighing volume tube.

[0011] Optionally, the first liquid branch pipe is connected to a magnetically driven rotor pump, and liquid is input under the action of the magnetically driven rotor pump; The first liquid branch pipe is connected to a liquid content analyzer, which is located on one side of the magnetic drive rotor pump and acts on the first liquid in the first liquid branch pipe.

[0012] Optionally, the first gas branch pipe is connected to a gas flow meter, and the gas flow meter acts at a first position on the first gas branch pipe.

[0013] Optionally, the first gas branch pipe is also connected to a float-type check valve. The gas flow meter and the float-type check valve are arranged sequentially along the extension direction of the first gas branch pipe, and the gas flow meter and the float-type check valve act at different positions of the first gas branch pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an oil well pipeline assembly for metering. A gas-liquid separator is disposed on one side of a first oil well and connected to the first oil well. The gas-liquid separator is connected to the first oil well through a first pipe. The gas-liquid separator is used to separate the mixture output from the first oil well to separate a first gas and a first liquid. A weighing volume tube is disposed on one side of the gas-liquid separator and connected to the gas-liquid separator. The weighing volume tube is connected to the gas-liquid separator through a second pipe. The weighing volume tube is used to contain the first liquid output from the second pipe. A weighing sensor is connected to the lower side of the weighing volume tube, and the weighing is performed by the weighing sensor. The first confluence pipe module includes a first gas branch pipe and a first liquid branch pipe. The first manifold is located outside the gas-liquid separator. It connects to the gas-liquid separator via a first gas branch pipe and to a weighing volume pipe via a first liquid branch pipe. The first manifold gathers the first gas input via the first gas branch pipe and the first liquid input via the first liquid branch pipe. An output pipe is located on one side of the first manifold and connects to it via a third pipe. This facilitates separate gas-liquid control via the first gas branch pipe and the first liquid branch pipe. Simultaneously, the weighing volume pipe ensures the deterministic and reliable quality of the liquid phase mass flow rate data, reducing liquid phase measurement errors in the oil well piping components used for measurement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 A schematic diagram of a metering well piping assembly according to one embodiment of this application is shown.

[0018] Figure 2 A schematic diagram of a first well and a first pipe for metering oil well piping assembly according to an embodiment of this application is shown.

[0019] Figure 3 A schematic diagram of a gas-liquid separator, a first manifold module, and a first manifold module for metering an oil well pipeline assembly according to an embodiment of this application is shown.

[0020] Figure Labels 100. Oil well piping assemblies used for metering; 10. First oil well; 20. Gas-liquid separator; 30. Weighing volume tube; 31. Weighing sensor; 40. First manifold module; 41. First gas branch pipe; 411. Gas flow meter; 412. Float-type check valve; 42. First liquid branch pipe; 421. Magnetic drive rotor pump; 422. Liquid content analyzer; 43. First manifold; 50. Output pipe; 51. Third pipe; 60. First pipeline; 61. Multi-way valve; 611. First branch; 612. Second branch; 6121. Fourth pipeline; 613. Third branch; 62. Temperature sensor; 63. Pressure sensor; 70. Second pipeline; 80. Second oil well; 81. Fifth pipeline. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] Please refer to the attached document. Figures 1-3 This application provides an oil well pipeline assembly 100 for metering, which is used to separately control gas and liquid.

[0023] Please refer to the attached document. Figures 1-3 In this embodiment, the well pipeline assembly 100 for metering includes a first well 10, a gas-liquid separator 20, a weighing volume tube 30, a first manifold module 40, and an output pipe 50. The gas-liquid separator 20 is disposed on one side of the first well 10 and connected to the first well 10. The gas-liquid separator 20 is connected to the first well 10 through a first pipe 60. The gas-liquid separator 20 is used to separate the mixture output from the first well 10 to separate a first gas and a first liquid. The weighing volume tube 30 is disposed on one side of the gas-liquid separator 20 and connected to the gas-liquid separator 20. The weighing volume tube 30 is connected to the gas-liquid separator 20 through a second pipe 70. The weighing volume tube 30 is used to contain the first liquid output through the second pipe 70. A weighing sensor 31 is connected to the lower side of the weighing volume tube 30, and the weighing is performed by the weighing sensor 31. The first manifold module 40 is connected to the first manifold module 50. Module 40 includes a first gas branch pipe 41, a first liquid branch pipe 42, and a first confluence pipe 43. The first confluence pipe 43 is located outside the gas-liquid separator 20. The first confluence pipe 43 is connected to the gas-liquid separator 20 through the first gas branch pipe 41 and to the weighing volume pipe 30 through the first liquid branch pipe 42. The first confluence pipe 43 collects the first gas input through the first gas branch pipe 41 and the first liquid input through the first liquid branch pipe 42. The output pipe 50 is located on one side of the first confluence pipe 43 and is connected to the first confluence pipe 43 through a third pipe. This facilitates the separate control of gas and liquid through the first gas branch pipe 41 and the first liquid branch pipe 42. At the same time, the weighing volume pipe 30 ensures that the liquid phase mass flow rate data has certainty and reliability, reducing the liquid phase measurement error of the oil well pipeline assembly 100 used for measurement.

[0024] Please refer to the attached document. Figures 1-3In this embodiment, the gas-liquid separator 20 is disposed outside the first oil well 10 and connected to the first oil well 10; the gas-liquid separator 20 is connected to the first oil well 10 through the first pipe 60 so that the mixture output from the first oil well 10 can flow to the gas-liquid separator 20 through the first pipe 60, thereby facilitating the transfer of the mixture; the gas-liquid separator 20 is used to separate the mixture output from the first oil well 10 to separate the first gas and the first liquid, ensuring the separation effect of the first gas and the first liquid.

[0025] The weighing volume tube 30 is located below the gas-liquid separator 20 and is connected to the gas-liquid separator 20. The weighing volume tube 30 is connected to the gas-liquid separator 20 through the second pipe 70 so that the first liquid in the gas-liquid separator 20 can flow to the weighing volume tube 30 through the second pipe 70. The weighing volume tube 30 is used to contain the first liquid output through the second pipe 70. A weighing sensor 31 is connected to the lower side of the weighing volume tube 30, and the weighing is performed by the weighing sensor 31 so as to calculate the weight of the first liquid in the weighing volume tube 30.

[0026] The first manifold module 40 includes a first gas branch pipe 41, a first liquid branch pipe 42, and a first manifold 43. The first manifold 43 is located outside the gas-liquid separator 20. The first manifold 43 is connected to the gas-liquid separator 20 through the first gas branch pipe 41, so that the first gas in the gas-liquid separator 20 can flow to the first manifold 43 through the first gas branch pipe 41. The first manifold 43 is connected to the weighing volume pipe 30 through the first liquid branch pipe 42, so that the first liquid in the weighing volume pipe 30 can flow to the first manifold 43 through the first liquid branch pipe 42. The first manifold 43 gathers the first gas input through the first gas branch pipe 41 and the first liquid input through the first liquid branch pipe 42. This allows for separate control of gas and liquid through the first gas branch pipe 41 and the first liquid branch pipe 42. At the same time, the weighing volume pipe 30 ensures that the liquid phase mass flow rate data has certainty and reliability, reducing the liquid phase measurement error of the oil well pipeline assembly 100 used for measurement.

[0027] The output pipe 50 is located outside the first confluence pipe 43 and is connected to the first confluence pipe 43 through the third pipe 51, so that the first gas and the first liquid in the first confluence pipe 43 can flow to the output pipe 50 through the third pipe 51, thereby facilitating the output pipe 50 to output to the external environment.

[0028] Please refer to the attached document. Figures 1-3In this embodiment, the first pipeline 60 is connected to a multi-way selector valve 61, which has a first branch 611 and a second branch 612. The first branch 611 is connected to the first pipeline 60. The second branch 612 is connected to a fourth pipeline 6121, which extends along the second branch 612 toward the output pipe 50 and converges with the first confluence pipe 43 to connect to the output pipe 50. This allows the multi-way selector valve 61 to control the flow of the mixture between the first pipeline 60 and the fourth pipeline 6121, thereby facilitating changes in the flow direction of the mixture. Simultaneously, the multi-way selector valve 61 selects channels during operation, with one channel being used for separate metering, while the remaining channels are aggregated within the multi-way selector valve 61. The selected well, after metering, is still input into the aggregation pipe, thus achieving the function of alternating metering of multiple wells.

[0029] Please refer to the attached document. Figures 1-3 In this embodiment, the multi-way valve 61 is further provided with a third branch 613, and the third branch 613, the second branch 612 and the first branch 611 can be selectively opened so that the mixture of the first pipe 60 can selectively flow to the third branch 613, the second branch 612 and the first branch 611.

[0030] The metering well pipeline assembly 100 also includes a second well 80; the second well 80 is connected to a third branch 613 via a fifth pipe 81, so that the mixture output from the second well 80 flows to the third branch 613 via the fifth pipe 81, thereby facilitating the flow of the multi-way valve 61 to the gas-liquid separator 20 and the first manifold 43 via the first branch 611 and the second branch 612 respectively; or, the second well 80 is directly connected to the first well 10 via a sixth pipe, so that the mixture output from the second well 80 flows to the first well 10 via the sixth pipe, thereby facilitating the flow of the mixture output from the second well 80 to the gas-liquid separator 20 via the first pipe 60 from the first well 10.

[0031] Please refer to the attached document. Figures 1-3 In this embodiment of the application, the first pipe 60 is connected to a temperature sensor 62 and a pressure sensor 63. The temperature sensor 62 and the pressure sensor 63 are arranged along the extension direction of the first pipe 60 and act sequentially on different positions of the first pipe 60, so that the temperature sensor 62 and the pressure sensor 63 can detect the temperature and pressure at different positions of the first pipe 60 respectively, thereby facilitating the collection of the temperature and pressure of the mixture output from the first pipe 60 before entering the gas-liquid separator 20.

[0032] Please refer to the attached document. Figures 1-3In this embodiment, the second pipe 70 is a flexible pipe; the flexible pipe has flexibility and tensile strength. One end of the second pipe 70 is connected to the drain port of the gas-liquid separator 20, and the other end of the second pipe 70 is connected to the inlet of the weighing volume tube 30, so that the gas-liquid separator 20 can be connected to the weighing volume tube 30 through both ends of the second pipe 70, thereby facilitating the increase of the distance between the gas-liquid separator 20 and the weighing volume tube 30 through the flexible pipe; the weighing volume tube 30 is arranged in a circular tube shape and is arranged in the vertical direction, so that the first liquid separated by the gas-liquid separator 20 can flow from top to bottom to the weighing volume tube 30 under its own gravity.

[0033] Please refer to the attached document. Figures 1-3 In this embodiment, the outer wall of the weighing volume tube 30 contacts the weighing end of the weighing sensor 31 so that the weighing sensor 31 can weigh the weighing volume tube 30, thereby facilitating the calculation of the weight of the first liquid in the weighing volume tube 30.

[0034] Please refer to the attached document. Figure 1 and 3 In this embodiment, there are multiple weighing sensors 31, which are distributed at different positions on the outer side wall of the weighing volume tube 30, thus ensuring the weighing accuracy of the weighing volume tube 30.

[0035] Please refer to the attached document. Figure 1 and 3 In this embodiment, the first liquid branch pipe 42 is connected to a magnetically driven rotor pump 421, and liquid is input under the action of the magnetically driven rotor pump 421; this prevents leakage of the liquid input into the first liquid branch pipe 42. The first liquid branch pipe 42 is connected to a liquid content analyzer 422, which is disposed on one side of the magnetically driven rotor pump 421 and acts on the first liquid in the first liquid branch pipe 42 to detect the liquid content in the first liquid in the first liquid branch pipe 42.

[0036] In this embodiment of the application, a gas flow meter 411 is connected to the first gas branch pipe 41. The gas flow meter 411 acts at a first position of the first gas branch pipe 41 to record the amount of gas flowing through the first gas branch pipe 41.

[0037] Please refer to the attached document. Figure 1 and 3In this embodiment, the first gas branch pipe 41 is also connected to a float-type check valve 412. The gas flow meter 411 and the float-type check valve 412 are arranged sequentially along the extension direction of the first gas branch pipe 41. The gas flow meter 411 and the float-type check valve 412 act at different positions of the first gas branch pipe 41 so that the first gas branch pipe 41 can automatically adjust the first gas discharge and prevent the first gas from overflowing through the float-type check valve 412. This facilitates the appropriate adjustment and discharge of the first gas calculated by the gas flow meter 411 through the float-type check valve 412.

[0038] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an oil well pipeline assembly 100 for metering. A gas-liquid separator 20 is disposed on one side of a first oil well 10 and connected to the first oil well 10. The gas-liquid separator 20 is connected to the first oil well 10 through a first pipe 60. The gas-liquid separator 20 is used to separate the mixture output from the first oil well 10 to separate a first gas and a first liquid. A weighing volume tube 30 is disposed on one side of the gas-liquid separator 20 and connected to the gas-liquid separator 20. The weighing volume tube 30 is connected to the gas-liquid separator 20 through a second pipe 70. The weighing volume tube 30 is used to contain the first liquid output from the second pipe 70. A weighing sensor 31 is connected to the lower side of the weighing volume tube 30, and weighing is performed through the weighing sensor 31. A first manifold module 40 includes a first gas branch pipe 41 and a first liquid branch pipe. Pipe 42 and first manifold 43; the first manifold 43 is located outside the gas-liquid separator 20; the first manifold 43 is connected to the gas-liquid separator 20 through the first gas branch pipe 41, and the first manifold 43 is connected to the weighing volume pipe 30 through the first liquid branch pipe 42; the first manifold 43 gathers the first gas input through the first gas branch pipe 41 and the first liquid input through the first liquid branch pipe 42; the output pipe 50 is located on one side of the first manifold 43 and is connected to the first manifold 43 through the third pipe 51, so as to realize the gas-liquid separation control through the first gas branch pipe 41 and the first liquid branch pipe 42. At the same time, the weighing volume pipe 30 makes the liquid phase mass flow rate data deterministic and reliable, reducing the liquid phase measurement error of the oil well pipeline assembly 100 used for measurement.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0040] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0041] Furthermore, the use of terms such as "" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An oil well pipeline assembly for metering, characterized in that, include: First oil well; A gas-liquid separator is disposed on one side of the first oil well and connected to the first oil well; the gas-liquid separator is connected to the first oil well through a first pipeline; the gas-liquid separator is used to separate the mixture output from the first oil well to separate a first gas and a first liquid. A weighing volume tube is disposed on one side of the gas-liquid separator and connected to the gas-liquid separator; the weighing volume tube is connected to the gas-liquid separator through a second pipe; the weighing volume tube is used to contain the first liquid output through the second pipe; a weighing sensor is connected to the lower side of the weighing volume tube, and the weighing is performed by the weighing sensor; The first manifold module includes a first gas branch pipe, a first liquid branch pipe, and a first manifold; the first manifold is disposed outside the gas-liquid separator; the first manifold is connected to the gas-liquid separator through the first gas branch pipe, and the first manifold is connected to the weighing volume pipe through the first liquid branch pipe; the first manifold gathers the first gas input through the first gas branch pipe and the first liquid input through the first liquid branch pipe. An output pipe is located on one side of the first confluence pipe and is connected to the first confluence pipe via a third pipe.

2. The oil well pipeline assembly for metering according to claim 1, characterized in that, The first pipeline is connected to a multi-way selector valve, which has a first branch and a second branch. The first branch is connected to the first pipeline; The second branch is connected to a fourth pipe, which extends along the second branch toward the output pipe and converges with the first confluence pipe to connect to the output pipe.

3. The well pipeline assembly for metering according to claim 2, characterized in that, The multi-way selector valve is further provided with a third branch, and the third branch, the second branch and the first branch can be selectively opened; The well pipeline assembly used for metering also includes a second well; The second oil well is connected to the third branch via the fifth pipeline, or the second oil well is directly connected to the first oil well via the sixth pipeline.

4. The well pipeline assembly for metering according to claim 1, characterized in that, The first pipe is connected to a temperature sensor and a pressure sensor, which are arranged along the extension direction of the first pipe and act sequentially on different positions of the first pipe.

5. The well pipeline assembly for metering according to claim 1, characterized in that, The second pipeline is a flexible pipeline; One end of the second pipe is connected to the drain port of the gas-liquid separator, and the other end of the second pipe is connected to the inlet of the weighing volume tube; the weighing volume tube is arranged in a circular tube shape and is arranged in the vertical direction.

6. The well pipeline assembly for metering according to claim 5, characterized in that, The outer wall of the weighing volume tube contacts the weighing end of the weighing sensor.

7. The well pipeline assembly for metering according to claim 6, characterized in that, The weighing sensor is a plurality of such sensors, which are distributed at different positions on the outer side wall of the weighing volume tube.

8. The well pipeline assembly for metering according to claim 6, characterized in that, The first liquid branch pipe is connected to a magnetically driven rotor pump, and liquid is input under the action of the magnetically driven rotor pump; The first liquid branch pipe is connected to a liquid content analyzer, which is located on one side of the magnetic drive rotor pump and acts on the first liquid in the first liquid branch pipe.

9. The well pipeline assembly for metering according to claim 1, characterized in that, The first gas branch pipe is connected to a gas flow meter, and the gas flow meter acts at a first position on the first gas branch pipe.

10. The well pipeline assembly for metering according to claim 9, characterized in that, The first gas branch pipe is also connected to a float-type check valve. The gas flow meter and the float-type check valve are arranged sequentially along the extension direction of the first gas branch pipe, and the gas flow meter and the float-type check valve act at different positions of the first gas branch pipe.

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