Well head gas sample collector

Abstract

The utility model relates to the technical field of gas well oil gas detection, in particular to a wellhead gas sample collector. The utility model relates to a wellhead gas sample collector, which comprises a support frame and a collection pipeline arranged on the support frame, the collection pipeline is formed by connecting a plurality of collection units in sequence; the electromagnetic valves are arranged between every two adjacent acquisition units; the gas valves are arranged on all the collection units and used for controlling the gas collected in all the collection units to flow out. The device has the beneficial effects that the device is communicated in sequence through the plurality of collecting units and corresponds to the gas of each section of the shaft according to the inflow sequence of the collecting units, so that a more accurate sampling mode is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of gas well oil and gas detection, in particular to a wellhead gas sample collector. Background Art

[0002] In gas well operations, in order to ensure sustainable development and safe production, it is usually necessary to regularly test the oil and gas in the gas well to analyze its concentration and composition.

[0003] However, since gas wells are usually long underground pipelines, the oil and gas ejected are continuous and uninterrupted. But currently, when collecting oil and gas, operators only briefly extract a small portion or a small section of the oil and gas, and the collected oil and gas are also mixed together, which cannot accurately reflect the concentration or composition ratio of the oil and gas ejected during the actual operation of the gas well. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a wellhead gas sample collector to solve the problem that the concentration or component ratio of the gas ejected during the actual operation of the gas well cannot be accurately reflected in the current oil and gas detection process.

[0005] The utility model solves the above technical problems with the following technical solutions: A wellhead gas sample collector, comprising:

[0006] A support frame and a collection pipeline arranged on the support frame, wherein;

[0007] The collection pipeline is formed by connecting a plurality of collection units in sequence;

[0008] A solenoid valve, wherein the solenoid valve is arranged between each two adjacent collection units;

[0009] A gas valve, which is arranged on each of the collection units and is used to control the outflow of the collected gas in each of the collection units;

[0010] A gas detection component is arranged on a collection unit at the end of a collection pipeline, and the gas detection component is electrically connected to a solenoid valve. When the gas detection component detects that the collection unit at the end of the collection pipeline contains gas, it is used to control the closing of the solenoid valve between each two adjacent collection units.

[0011] The beneficial effects of the utility model are:

[0012] 1) By dividing the collection pipeline into multiple collection units and installing solenoid valves between adjacent collection units, these solenoid valves are used to isolate each collection unit. A gas detection component is set in the collection unit at the end of the collection pipeline. When gas flows from the first-stage collection unit and enters the last-stage collection unit, at this point, all the collection units in the collection pipeline contain gas. As the gas detection component in the last-stage collection unit detects the influx of gas and sends a signal to instruct each solenoid valve to close, thereby separating the gas in each collection unit. When sampling is required, the gas valves of one or more selected collection units can be opened to extract gas. This device is connected in sequence through multiple collection units, corresponding to the gas in each section of the wellbore according to the inflow order of the collection units, thus realizing a more accurate sampling method.

[0013] Based on the above technical solution, the present utility model can be further improved as follows.

[0014] Further, each of the said collection units includes a first collection pipe, a second collection pipe, and a third collection pipe. One end of the second collection pipe is fixed to one end of the first collection pipe.

[0015] Further, the other end of the second collection pipe is fixed to one end of the third collection pipe, and the first collection pipe, the second collection pipe, and the third collection pipe are arranged in a "Ji" shape.

[0016] Further, the gas detection component is set as a natural gas sensor, and the natural gas sensor is arranged inside the third collection pipe of the last-stage collection unit.

[0017] Further, anti-collision protective layers are sleeved on the outer sides of the first collection pipe and the second collection pipe.

[0018] Further, the protective layer is a metal baffle.

[0019] The beneficial effect of adopting the above further scheme is that the structural strength and durability of the collection pipeline are enhanced through the metal baffle, effectively preventing the influence of external impact or damage on the pipeline and equipment, thereby improving the stability and reliability of the entire gas collection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a front view of each collection unit of the present utility model;

[0022] Figure 3 It is a schematic side sectional view of the overall structure of the present utility model;

[0023] Figure 4 It is a top view of the overall structure of the present utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 10. Support frame, 20. Collection unit, 210. Collection tube 1, 220. Collection tube 2, 2300. Collection tube 3, 30. Solenoid valve, 40. Gas valve, 50. Gas detection group, 60. Protective layer. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] In gas well operations, in order to ensure sustainable development and safe production, it is usually necessary to regularly test the oil and gas in the gas well to analyze its concentration and composition.

[0028] However, since gas wells are usually long underground pipelines, the oil and gas ejected are continuous and uninterrupted. However, when collecting oil and gas, current operators only briefly extract a small portion or a small section of oil and gas, and the collected oil and gas are also mixed together, which cannot accurately reflect the concentration or component ratio of the oil and gas ejected during the actual operation of the gas well. In this regard, the utility model proposes a rolling machine for exhaust pipe production to solve the above problems.

[0029] The utility model provides the following preferred embodiments

[0030] like Figure 1-Figure 4 As shown, a wellhead gas sample collector comprises:

[0031] A support frame 10 and a collection pipeline arranged on the support frame 10, wherein;

[0032] The collection pipeline is formed by connecting a plurality of collection units 20 in sequence;

[0033] A solenoid valve 30, which is arranged between every two adjacent collection units 20;

[0034] A gas valve 40, which is disposed on each collection unit 20 and is used to control the outflow of the gas collected in each collection unit 20;

[0035] A gas detection group 50, which is arranged on the collection unit 20 at the end of the collection pipeline, and is electrically connected to the solenoid valve 30. When the gas detection group 50 detects that the collection unit 20 at the end of the collection pipeline contains gas, it is used to control the closing of the solenoid valve 30 between each two adjacent collection units 20;

[0036] By dividing the collection pipeline into multiple collection units 20 and installing solenoid valves 30 between adjacent collection units 20, each collection unit 20 is isolated by these solenoid valves 30. 50 gas detection units are set in the collection unit 20 at the end of the collection pipeline. When gas flows from the first-stage collection unit 20 and enters the last-stage collection unit 20, at this point, all the collection units 20 in the collection pipeline contain gas. As the 50 gas detection units in the last-stage collection unit 20 detect the influx of gas and send signals to indicate each solenoid valve 30 to close, thus separating the gas in each collection unit 20. When sampling is required, one or more collection units 20 can be selected and their gas valves 40 can be opened to extract gas. The device is connected in sequence through multiple collection units 20, corresponding to the gas in each section of the wellbore according to the inflow order of the collection units 20, thereby realizing a more accurate sampling method.

[0037] In this embodiment, as Figure 1-Figure 4 shown, each collection unit 20 includes a first collection pipe 210, a second collection pipe 220, and a third collection pipe 2300. One end of the second collection pipe 220 is fixed to one end of the first collection pipe 210, and the other end of the second collection pipe 220 is fixed to one end of the third collection pipe 2300. And the first collection pipe 210, the second collection pipe, and the third collection pipe 2300 are arranged in a "Ji" shape. Since each collection unit 20 is connected in sequence, the third collection pipe 2300 at the first stage is connected to the first collection pipe 210 of the second-stage collection unit 20, and the third collection pipe 2300 of the second-stage collection unit 20 is connected to the first collection pipe 210 of the third-stage collection unit 20, enabling all the collection units 20 of the collection pipeline to be connected in sequence according to this order. Therefore, the connection of each collection unit 20 is where the third collection pipe 2300 is connected to the first collection pipe 210, and the solenoid valve 30 can be installed between the third collection pipe 2300 and the first collection pipe 210 of each one.

[0038] In this embodiment, as Figure 1-Figure 4 shown, the 50 gas detection units are set as natural gas sensors, and the natural gas sensors are arranged inside the third collection pipe 2300 of the last-stage collection unit 20.

[0039] In this embodiment, as Figure 1-Figure 4 shown, anti-collision protective layers 60 are sleeved outside both the first collection pipe 210 and the second collection pipe 220. The protective layer 60 is a metal baffle, which enhances the structural strength and durability of the collection pipeline through the metal baffle, effectively preventing the impact of external collisions or damages on the pipeline and equipment, thereby improving the stability and reliability of the entire gas collection system.

[0040] The specific working process of the present utility model is as follows:

[0041] (1) Introduce the oil and gas in the gas well

[0042] First, the collection pipe 210 of the first section collection unit 20 of the collection pipeline is connected to the transmission pipeline of the gas well.

[0043] (2) Filling with oil and gas

[0044] The oil and gas flowing into the collection pipe 1 210 of the first collection unit 20 enters the collection pipe 3 2300 through the collection pipe 2 220. Therefore, the oil and gas injected into the first collection unit 20 flows into the next collection unit 20 in sequence. At present, most of the oil and gas in the gas well is natural gas, that is, natural gas contains methane.

[0045] (3) Divide the oil and gas in the collection pipeline

[0046] When the gas flows from the first-stage collection unit 20 and enters the last-stage collection unit 20, all the collection units 20 in the collection pipeline contain oil and gas. The natural gas sensor in the last-stage collection unit 20 (the natural gas sensor can use a methane 4N-CH4 sensor from Sangbay) detects the influx of oil and gas and sends a signal to instruct each solenoid valve 30 to close, thereby separating the oil and gas in each collection unit 20.

[0047] (4) Sampling

[0048] When sampling is required, one or more collection units 20 can be selected and their gas valves 40 can be opened (the gas valve 40 can adopt TA-11 exhaust valve 40) to extract gas. The device is connected in sequence through multiple collection units 20. According to the inflow order of the collection units 20, the gas corresponding to each section of the wellbore is obtained, thereby achieving a more accurate sampling method.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A wellhead gas sample collector, characterized in that: Comprising: A support frame and a collection pipeline arranged on the support frame, wherein; The collection pipeline is formed by sequentially connecting a plurality of collection units; An electromagnetic valve, which is arranged between every two adjacent collection units; A gas valve, which is arranged on each collection unit and is used to control the outflow of the gas collected in each collection unit; A gas detection component, which is arranged on the collection unit at the end of the collection pipeline, and the gas detection component is electrically connected to the electromagnetic valve. When the gas detection component detects that the collection unit at the end of the collection pipeline contains gas, it is used to control the closing of the electromagnetic valve between every two adjacent collection units.

2. A wellhead gas sample collector according to claim 1, characterized in that: Each collection unit includes a first collection pipe, a second collection pipe, and a third collection pipe. One end of the second collection pipe is fixed to one end of the first collection pipe.

3. A wellhead gas sample collector according to claim 2, characterized in that: The other end of the second collection pipe is fixed to one end of the third collection pipe, and the first collection pipe, the second collection pipe, and the third collection pipe are arranged in a "Ji" shape.

4. A wellhead gas sample collector according to claim 1, characterized in that: The gas detection component is set as a natural gas sensor, and the natural gas sensor is arranged inside the third collection pipe of the collection unit at the end.

5. A wellhead gas sample collector according to claim 2, characterized in that: Anti-collision protective layers are sleeved on the outer sides of the first collection pipe and the second collection pipe.

6. A wellhead gas sample collector according to claim 5, characterized in that: The protective layer is a metal baffle.

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