Oil and gas well gas sampling device

Abstract

The utility model discloses an oil and gas well gas sampling device which comprises a gas sampling barrel, an electric push rod is fixedly installed on the inner top wall of the gas sampling barrel, the output end of the electric push rod is fixedly connected with a gas extraction plate, and the bottom face of the gas sampling barrel is fixedly communicated with a gas inlet pipe. The outer surface of the gas inlet pipe is fixedly communicated with a first electronic valve, and the interior of the gas sampling barrel is fixedly connected with a water vapor filtering layer. According to the device, firstly, the electric push rod is arranged, the electric push rod can drive the air exhaust plate to ascend and descend, so that air exhaust and air exhaust work can be completed, then the water vapor filtering layer is arranged, water in gas can be filtered out through the water vapor filtering layer when sampling is conducted on the interior of the oil and gas well, and then the ozone filtering layer is arranged, so that the water in the gas is filtered out. The ozone filtering layer can be used for filtering toxic and harmful gas in gas when sampling is carried out in the oil and gas well, so that the accuracy of gas detection in the gas sampling barrel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas well gas sampling, in particular to an oil and gas well gas sampling device. Background Art

[0002] Oil and gas well engineering belongs to the first-level discipline of petroleum and natural gas engineering. Oil and gas wells are indispensable information and material channels for human exploration and development of underground oil and natural gas resources. Oil and gas well engineering is a capital and technology intensive project implemented around the construction, measurement and protection of oil and gas wells. It mainly includes oil and gas exploration and development drilling and completion engineering, oil and gas well measurement and testing engineering, and oil and gas well protection and repair engineering. It is a basic link in oil and gas exploration and development.

[0003] At present, most of the gas sampling work of various oil and gas wells in my country is carried out at the outlet of a single well separator. In most oil and gas production wells that are located far away from the production wells and do not have a wellhead oil and gas separator, due to imperfect technology and no collection equipment, gas samples can only be collected directly at the wellhead. Since there are many toxic and harmful gas components in the products of oil and gas wells, conventional gas sampling is mixed with oil and gas, and formation water, wax and other substances are often mixed in them, making it difficult to ensure the accuracy of the basic data detection of the gas sample. The quality of the collected gas samples is unqualified or even invalid. To this end, we propose a gas sampling device for oil and gas wells to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a gas sampling device for oil and gas wells to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gas sampling device for oil and gas wells, comprising a gas sampling tube, an electric push rod fixedly installed on the inner top wall of the gas sampling tube, an output end of the electric push rod fixedly connected to a vacuum plate, a bottom surface of the gas sampling tube fixedly connected to an air inlet pipe, an outer surface of the air inlet pipe fixedly connected to a first electronic valve, an interior of the gas sampling tube fixedly connected to a water vapor filter layer, an interior of the gas sampling tube fixedly connected to an ozone filter layer, a back side of the gas sampling tube fixedly connected to an exhaust pipe, and an outer surface of the exhaust pipe fixedly connected to a second electronic valve.

[0007] In a further embodiment, a control button is fixedly connected to the front of the gas sampling tube, and the output end of the control button is respectively connected to the input end of the electric push rod, the input end of the first electronic valve and the input end of the second electronic valve through wires, and an operation indicator sign is fixedly connected to the back of the gas sampling tube.

[0008] In a further embodiment, an observation window is provided on the front side of the gas sampling tube, and the observation window is made of transparent glass.

[0009] In a further embodiment, a mounting seat is fixed on the right side of the gas sampling tube, and a lighting lamp is fixed on the right side of the mounting seat.

[0010] In a further embodiment, a carrying handle is fixedly connected to the upper surface of the gas sampling tube, and a protective sleeve is provided on the outer surface of the carrying handle, and the protective sleeve is made of rubber.

[0011] In a further embodiment, two slide grooves are provided on the inner wall of the gas sampling tube, and sliders are slidably connected inside the two slide grooves, and the sides of the two sliders close to each other are respectively connected to the left and right sides of the exhaust plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is firstly provided with an electric push rod, which can drive the suction plate to move up and down, thereby completing the suction and exhaust work; then, a water vapor filter layer is provided, which can be used to filter the moisture in the gas when sampling inside the oil and gas well; and then, an ozone filter layer is provided, which can be used to filter the toxic and harmful gases in the gas when sampling inside the oil and gas well, thereby ensuring the accuracy of gas detection inside the gas sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a gas sampling device for oil and gas wells.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the rear view of an oil and gas well gas sampling device.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of a top view of a gas sampling device for oil and gas wells.

[0017] Figure 4 It is a cross-sectional view of a front view of a gas sampling device for oil and gas wells.

[0018] In the figure: 1. gas sampling tube; 2. electric push rod; 3. suction plate; 4. air inlet pipe; 5. first electronic valve; 6. water vapor filter layer; 7. ozone filter layer; 8. exhaust pipe; 9. second electronic valve; 10. control button; 11. operation indicator plate; 12. observation window; 13. mounting base; 14. lighting lamp; 15. carrying handle; 16. protective cover; 17. slide groove; 18. slider. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4In the utility model, a gas sampling device for oil and gas wells comprises a gas sampling tube 1, an electric push rod 2 is fixedly installed on the inner top wall of the gas sampling tube 1, an output end of the electric push rod 2 is fixedly connected to a suction plate 3, the bottom surface of the gas sampling tube 1 is fixedly connected to an air inlet pipe 4, the outer surface of the air inlet pipe 4 is fixedly connected to a first electronic valve 5, the interior of the gas sampling tube 1 is fixedly connected to a water vapor filter layer 6, the interior of the gas sampling tube 1 is fixedly connected to an ozone filter layer 7, the back of the gas sampling tube 1 is fixedly connected to an exhaust pipe 8, the outer surface of the exhaust pipe 8 is fixedly connected to a second electronic valve 9, the water vapor filter layer 6 can be used to filter the moisture in the gas when sampling the inside of the oil and gas well, and the ozone filter layer 7 can be used to filter the toxic and harmful gases in the gas when sampling the inside of the oil and gas well, so that the accuracy of gas detection inside the gas sampling tube 1 can be ensured.

[0023] A control button 10 is fixedly connected to the front of the gas sampling tube 1, and the output end of the control button 10 is connected to the input end of the electric push rod 2, the input end of the first electronic valve 5 and the input end of the second electronic valve 9 through wires. An operation indicator board 11 is fixedly connected to the back of the gas sampling tube 1. An observation window 12 is provided on the front of the gas sampling tube 1, and the observation window 12 is made of transparent glass. A mounting seat 13 is fixed on the right side of the gas sampling tube 1, and a lighting lamp 14 is fixedly installed on the right side of the mounting seat 13. The operation indicator board 11 can facilitate the staff to check the operating steps of the device, the observation window 12 can facilitate the staff to check the gas inside the gas sampling tube 1, and the lighting lamp 14 can provide good lighting effects when working at night.

[0024] A carrying handle 15 is fixedly connected to the upper surface of the gas sampling tube 1, and a protective cover 16 is provided on the outer surface of the carrying handle 15. The protective cover 16 is made of rubber. Two slide grooves 17 are provided on the inner wall of the gas sampling tube 1. Slide blocks 18 are slidably connected to the inside of the two slide grooves 17. The sides of the two slide blocks 18 that are close to each other are respectively connected to the left and right sides of the exhaust plate 3. The carrying handle 15 can be used to facilitate the staff to carry the device, and the slide groove 17 and the slide block 18 can be used to limit the exhaust plate 3, so that the electric push rod 2 can drive the exhaust plate 3 to rise and fall more stably.

[0025] The working principle of the utility model is:

[0026] When the device is used, the staff first picks up the gas sampling tube 1 and puts it into the oil and gas well, and uses the control button 10 to open the first electronic valve 5 and start the electric push rod 2 at the same time, and uses the electric push rod 2 to drive the vacuum plate 3 to move upward, so that the gas inside the oil and gas well is pumped into the gas sampling tube 1 through the air inlet pipe 4. When the gas inside the oil and gas well is pumped into the gas sampling tube 1, the water vapor filter layer 6 inside the gas sampling tube 1 will filter out the moisture contained in the gas, and at the same time, the ozone filter layer 7 inside the gas sampling tube 1 will also filter out toxic and harmful substances in the gas, thereby ensuring the purity of the gas inside the gas sampling tube 1, so as to facilitate the subsequent gas detection work. The above is the entire operation process of the device.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gas sampling device for oil and gas wells, characterized in that: The invention comprises a gas sampling tube (1), wherein an electric push rod (2) is fixedly mounted on the inner top wall of the gas sampling tube (1), an output end of the electric push rod (2) is fixedly connected to an exhaust plate (3), the bottom surface of the gas sampling tube (1) is fixedly connected to an air intake pipe (4), the outer surface of the air intake pipe (4) is fixedly connected to a first electronic valve (5), the interior of the gas sampling tube (1) is fixedly connected to a water vapor filter layer (6), the interior of the gas sampling tube (1) is fixedly connected to an ozone filter layer (7), the back of the gas sampling tube (1) is fixedly connected to an exhaust pipe (8), and the outer surface of the exhaust pipe (8) is fixedly connected to a second electronic valve (9).

2. The oil and gas well gas sampling device according to claim 1, characterized in that: A control button (10) is fixedly connected to the front of the gas sampling tube (1), and an output end of the control button (10) is respectively connected to an input end of the electric push rod (2), an input end of the first electronic valve (5), and an input end of the second electronic valve (9) through wires; an operation indicator plate (11) is fixedly connected to the back of the gas sampling tube (1).

3. The oil and gas well gas sampling device according to claim 1, characterized in that: An observation window (12) is provided on the front of the gas sampling tube (1), and the observation window (12) is made of transparent glass.

4. The oil and gas well gas sampling device according to claim 1, characterized in that: A mounting seat (13) is fixed on the right side of the gas sampling cylinder (1), and an illuminating lamp (14) is fixed on the right side of the mounting seat (13).

5. The oil and gas well gas sampling device according to claim 1, characterized in that: A carrying handle (15) is fixedly connected to the upper surface of the gas sampling tube (1), and a protective sleeve (16) is sleeved on the outer surface of the carrying handle (15), wherein the protective sleeve (16) is made of rubber.

6. The oil and gas well gas sampling device according to claim 1, characterized in that: The inner wall of the gas sampling tube (1) is provided with two slide grooves (17), the interiors of the two slide grooves (17) are slidably connected with sliders (18), and the sides of the two sliders (18) that are close to each other are respectively connected to the left and right sides of the exhaust plate (3).

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