CN213018870U

CN213018870U - Associated gas recovery unit for well group

Info

Publication number: CN213018870U
Application number: CN202021576293.5U
Authority: CN
Inventors: 文宇鹏; 王光义; 秦继磊; 刘梦然; 高嵩
Original assignee: Shaanxi Puxin Equipment Engineering Co ltd
Current assignee: Shaanxi Puxin Equipment Engineering Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-20
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses an associated gas recovery unit for well group belongs to the oil field production corollary equipment. This associated gas recovery system includes compression cylinder, air inlet pipeline, outlet pipeline, buffer tank and gas merging pipeline, wherein: the gas combining pipeline collects the associated gas in a plurality of oil production wells through a sleeve and stores the associated gas in the buffer tank, the gas inlet of the compression cylinder is communicated with the buffer tank through a gas inlet pipeline, and the gas outlet of the compression cylinder is communicated with the oil pipeline of the well group through a gas outlet pipeline to pressurize and recover the associated gas. The utility model relates to a rationally, only use a compression cylinder can realize one drags many associated gases to retrieve the operational mode, can show reduction recovery cost, promotion recovery volume.

Description

Associated gas recovery unit for well group

Technical Field

The utility model belongs to the oilfield production corollary equipment, concretely relates to associated gas recovery unit is used to well group.

Background

In oil field production, a certain amount of associated natural gas is released along with oil production. Due to the technical conditions and the limitation of the outlet of the recovered gas, the associated gas is usually directly discharged or discharged after being burned by a torch in the petroleum industry for a long time. Associated gas can discharge a large amount of dense smoke when burning, generate a large amount of greenhouse gases, particularly carbon dioxide, sulfur dioxide and the like, and pollute the environment.

In recent years, with the requirements of energy conservation and emission reduction, environmental protection, green mining area construction and accelerated comprehensive utilization of associated gas, part of technicians design various associated gas recovery systems, however, at present, the oil field associated gas recovery of mechanical oil extraction in various domestic oil fields generally adopts a one-to-one mode, namely, one associated gas recovery device is installed in one well, so that the investment cost is high, and the later maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an associated gas recovery unit for well group, through parts such as gas-mixing pipeline, buffer tank, only use a compression cylinder can realize one drags many associated gas and retrieve the operational mode, can show reduction recovery cost, promote the recovery volume

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides an associated gas recovery unit for well group which characterized in that, includes compression cylinder, air inlet pipeline, outlet pipeline, buffer tank and gas mixing pipeline, wherein: an air inlet of the compression cylinder is communicated with the buffer tank through an air inlet pipeline; the air outlet of the compression cylinder is communicated with an oil pipeline through an air outlet pipeline; one end of the gas merging pipeline is communicated with the buffer tank, and the other end of the gas merging pipeline is communicated with a plurality of oil well oil pipes.

Preferably, the air inlet pipeline comprises an air inlet pressure relief ball valve, an air inlet one-way valve, a flowmeter, an air inlet safety valve and a Y-shaped filter, wherein: an air inlet of the compression cylinder is communicated with an air outlet of the buffer tank sequentially through an air inlet pressure relief ball valve, an air inlet one-way valve, a flowmeter, an air inlet safety valve, a Y-shaped filter and a heat preservation air inlet pipe.

Preferably, the air outlet pipeline comprises an air outlet safety valve, an air outlet one-way valve, an air outlet pressure valve, a heat preservation air outlet pipe, an air outlet pressure relief ball valve, a high-pressure ball valve and a pipeline interface assembly, and an air outlet of the compression cylinder is communicated with the oil conveying pipeline sequentially through the air outlet safety valve, the air outlet one-way valve, the air outlet pressure valve, the heat preservation air outlet pipe, the air outlet pressure relief ball valve, the high-pressure ball valve and the pipeline interface.

Preferably, the gas merging line comprises a main gas inlet ball valve, a main gas merging pipe, a plurality of branch gas merging pipes, a plurality of branch gas merging ball valves and a plurality of branch sleeves, wherein: the main air inlet ball valve is arranged between an air inlet of the buffer tank and the main air collecting pipe; the main gas collecting pipe is provided with a plurality of branch gas collecting pipes, and the branch gas collecting pipes are communicated with the oil well oil pipe through loose joints, branch gas collecting ball valves and a plurality of branch sleeves in sequence.

Preferably, the main gas collecting pipe is provided with an emptying pressure relief ball valve and a collecting pipe gas-sleeving pressure gauge.

Preferably, the sleeve pipe is provided with an air-sleeve valve, an air-sleeve liquid-discharging ball valve and an air-sleeve pressure gauge.

The utility model discloses an associated gas recovery unit for well group has following beneficial effect:

including compression cylinder, air inlet pipeline, outlet pipeline, buffer tank and gas merging pipeline, wherein: the gas combining pipeline collects the associated gas in a plurality of oil production wells through a sleeve and stores the associated gas in the buffer tank, the gas inlet of the compression cylinder is communicated with the buffer tank through a gas inlet pipeline, and the gas outlet of the compression cylinder is communicated with the oil pipeline of the well group through a gas outlet pipeline to pressurize and recover the associated gas. The utility model relates to a rationally, only use a compression cylinder can realize one drags many associated gases to retrieve the operational mode, can show reduction recovery cost, promotion recovery volume.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the intake pipe of the present invention;

fig. 3 is a schematic view of the structure of the middle air outlet pipeline of the present invention;

fig. 4 is a schematic diagram of the structure of the merged gas pipeline of the present invention.

In the figure, 1-compression cylinder, 2-air inlet pipeline, 201-air inlet pressure relief ball valve, 202-air inlet check valve, 203-flowmeter, 204-air inlet safety valve, 205-Y type filter 3-air outlet pipeline, 301-air outlet safety valve, 302-air outlet check valve, 303-air outlet pressure valve, 304-heat preservation air outlet pipe, 305-air outlet pressure relief ball valve, 306-high pressure ball valve, 307-pipeline interface component, 4-buffer tank, 5-air merging pipeline, 501-total air inlet ball valve, 502-total air merging pipe, 503-branch air merging pipe, 504-branch air converging ball valve, 505-branch pipe, 5021-emptying pressure relief ball valve, 5022-branch pipe sleeve air pressure gauge, 5051-sleeve air valve, 5052-sleeve air drain pressure gauge, 5053-sleeve air pressure gauge, 6-oil pipeline, 7-oil well oil pipe,

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 4, the associated gas recovery apparatus for a well group comprises a compression cylinder 1, a gas inlet pipeline 2, a gas outlet pipeline 3, a buffer tank 4 and a gas merging pipeline 5. The compression cylinder 1 utilizes the swing of a walking beam of the pumping unit as driving power, drives the supporting rod to transmit and drive the piston rod again through the walking beam of the pumping unit, drives the cylinder to continuously work, belongs to novel no external power equipment, and makes full use of the existing power.

It should be noted that the air inlet of the compression cylinder 1 is communicated with the buffer tank 4 through the air inlet pipeline 2; the air outlet of the compression cylinder 1 is communicated with an oil pipeline 6 through an air outlet pipeline 3; one end of the gas merging pipeline 5 is communicated with the buffer tank 4, the other end of the gas merging pipeline 5 is communicated with a plurality of oil well oil pipes 7, and the pressurization and recovery of the associated gas are realized through the compression cylinder 1.

As shown in fig. 2, the intake line 2 includes an intake pressure relief ball valve 201, an intake check valve 202, a flow meter 203, an intake safety valve 204, and a Y-filter 205, wherein: an air inlet of the compression cylinder 1 is communicated with an air outlet of the buffer tank 4 through an air inlet pressure relief ball valve 201, an air inlet one-way valve 202, a flowmeter 203, an air inlet safety valve 204, a Y-shaped filter 205 and a heat preservation air inlet pipe in sequence.

The filter is mainly used for filtering impurities in associated gas and preventing the impurities from entering the flowmeter and damaging important parts in the cylinder body; the flowmeter mainly measures the amount of the recovered associated gas; the safety valve is mainly used for exhausting and reducing pressure when the air inlet pressure is higher than the set pressure so as to ensure that the device runs stably; the pressure reducing valve is mainly used for ensuring that the gas well pressure is always in a stable state. Pipeline and each spare part are all handled with fire prevention high temperature resistant material heat preservation, through scientific design, reasonable layout, make this system possess advantages such as measurement is accurate, operation safe and reliable, even also can effectively ensure the even running of system in the unstable state of admitting air.

As shown in fig. 3, the air outlet line 3 includes an air outlet safety valve 301, an air outlet check valve 302, an air outlet pressure valve 303, a heat preservation air outlet pipe 304, an air outlet pressure relief ball valve 305, a high pressure ball valve 306 and a pipeline interface assembly 307, wherein: the air outlet of the compression cylinder 1 is communicated with the oil pipeline 6 through an air outlet safety valve 301, an air outlet one-way valve 302, an air outlet pressure valve 303, a heat preservation air outlet pipe 304, an air outlet pressure relief ball valve 305, a high-pressure ball valve 306 and a pipeline interface assembly 307 in sequence.

As shown in fig. 4, the merging pipeline 5 includes a main intake ball valve 501, a main merging pipe 502, a plurality of branch merging pipes 503, a plurality of branch merging ball valves 504, and a plurality of branch sleeves 505, wherein: the main air inlet ball valve 501 is arranged between the air inlet of the buffer tank 4 and the main air collecting pipe 502; the main gas collecting pipe 502 is provided with a plurality of branch gas collecting pipes 503, and the branch gas collecting pipes 503 are communicated with the oil well oil pipe 7 through loose joints, a branch gas collecting ball valve 504 and a plurality of branch sleeves 505 in sequence.

Specifically, evacuation pressure relief ball valves 5021 are arranged at two ends of the main gas manifold 502, and a manifold sleeve gas pressure gauge 5022 is arranged on the main gas manifold 502. The tail end of the branch sleeve 505 is provided with a gas-filled valve 5051, and the middle part of the branch sleeve 505 is provided with a gas-filled drainage ball valve 5052 and a gas-filled pressure gauge 5053.

It should be noted that the gas-mixing pipeline 5 collects the associated gas in a plurality of oil production wells through a sleeve and stores the associated gas in the buffer tank, the gas inlet of the compression cylinder is communicated with the buffer tank through a gas inlet pipeline, and the gas outlet of the compression cylinder is communicated with the oil pipeline of the well group through a gas outlet pipeline to pressurize and recover the associated gas.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an associated gas recovery unit for well group which characterized in that, includes compression cylinder (1), air inlet pipeline (2), outlet pipeline (3), buffer tank (4) and gas mixing pipeline (5), wherein:

an air inlet of the compression cylinder (1) is communicated with the buffer tank (4) through an air inlet pipeline (2);

the air outlet of the compression cylinder (1) is communicated with an oil pipeline (6) through an air outlet pipeline (3);

one end of the gas merging pipeline (5) is communicated with the buffer tank (4), and the other end of the gas merging pipeline (5) is communicated with a plurality of oil well oil pipes (7).

2. Associated gas recovery unit for a well group according to claim 1, characterized in that said gas inlet line (2) comprises a gas inlet pressure relief ball valve (201), a gas inlet one-way valve (202), a flow meter (203), a gas inlet safety valve (204) and a Y-filter (205), wherein:

an air inlet of the compression cylinder (1) is communicated with an air outlet of the buffer tank (4) sequentially through an air inlet pressure relief ball valve (201), an air inlet one-way valve (202), a flowmeter (203), an air inlet safety valve (204), a Y-shaped filter (205) and a heat preservation air inlet pipe.

3. Associated gas recovery device for a well group according to claim 1, wherein the gas outlet line (3) comprises a gas outlet safety valve (301), a gas outlet one-way valve (302), a gas outlet pressure valve (303), a heat preservation gas outlet pipe (304), a gas outlet pressure relief ball valve (305), a high pressure ball valve (306) and a pipeline interface component (307), wherein:

an air outlet of the compression cylinder (1) is communicated with an oil pipeline (6) through an air outlet safety valve (301), an air outlet one-way valve (302), an air outlet pressure valve (303), a heat preservation air outlet pipe (304), an air outlet pressure relief ball valve (305), a high-pressure ball valve (306) and a pipeline interface assembly (307) in sequence.

4. A well group associated gas recovery device according to claim 1, wherein the gas merging line (5) comprises a main gas inlet ball valve (501), a main gas merging pipe (502), a plurality of branch gas merging pipes (503), a plurality of branch gas merging ball valves (504) and a plurality of branch pipes (505), wherein:

the main air inlet ball valve (501) is arranged between an air inlet of the buffer tank (4) and the main air collecting pipe (502);

the main gas collecting pipe (502) is provided with a plurality of branch gas collecting pipes (503), and the branch gas collecting pipes (503) are communicated with the oil well oil pipe (7) through loose joints, a branch gas collecting ball valve (504) and a plurality of branch sleeves (505) in sequence.

5. The associated gas recovery device for well group according to claim 4, characterized in that the main gas collecting pipe (502) is provided with an emptying pressure relief ball valve (5021) and a header gas pressure gauge (5022).

6. Associated gas recovery device for a well group according to claim 4, characterized in that a gas-trap valve (5051), a gas-trap ball valve (5052) and a gas-trap pressure gauge (5053) are arranged on the branch casing (505).