CN210509139U - Safe and economical collecting device for recycling low-pressure associated gas at well mouth - Google Patents
Safe and economical collecting device for recycling low-pressure associated gas at well mouth Download PDFInfo
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- CN210509139U CN210509139U CN201921235856.1U CN201921235856U CN210509139U CN 210509139 U CN210509139 U CN 210509139U CN 201921235856 U CN201921235856 U CN 201921235856U CN 210509139 U CN210509139 U CN 210509139U
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Abstract
The utility model discloses a safe economy collection device for well head low pressure associated gas recycle, include: the oil-gas separation assembly comprises a separation tank body, supporting legs are welded at the bottom of the separation tank body, two first fixed blocks are welded on the inner side wall of the separation tank body close to a gas outlet, a frame body is fixed on the tops of the two first fixed blocks through bolts, a mist catching net is welded on the inner side wall of the frame body, and a second fixed block is welded on the inner side wall of the first fixed block; the gas-liquid separator is adopted at the low-lying part of the pipeline, the separator adopts a natural sedimentation method, the liquid and the gas components are separated by utilizing the characteristics of sudden space increase and gas flow velocity reduction, and meanwhile, a layer of mist catching net is added at the outlet, so that water mist which is not completely settled can be caught, the water in the gas is further separated, and the possibility of freezing and blocking of the subsequent pipeline is greatly reduced.
Description
Technical Field
The utility model relates to a recycle technical field of oil field associated gas specifically is a safe economy collection device that is used for well head low pressure associated gas recycle.
Background
Associated gas, generally referred to as natural gas, is co-produced with petroleum. According to the oil production theory of organic hydrocarbon formation, organic matter evolves to generate liquid hydrocarbon and gaseous hydrocarbon. The gaseous hydrocarbon is either dissolved in the liquid hydrocarbon or exists in the upper portion of the reservoir in a gas cap state. Both of these gaseous hydrocarbons are known as oilfield associated gas or associated gas. From the viewpoint of oil production work, the natural gas produced when an oil field or an oil reservoir is produced is referred to.
The prior art has the following problems:
at present, the low-pressure associated gas of a common oil well of an oil field is directly emptied, and the recovery of the low-pressure associated gas has the problems of wide range, difficult pipe distribution, high pipe distribution cost, easy freezing and plugging in winter, difficult solution of freezing and plugging and the like. Most of oil wells in oil fields in China are distributed in remote areas, carbon steel oil pipes are generally adopted for connection aiming at recovery of associated gas and then collected to a combined transfer station, and a gas-liquid separation device is basically not arranged in the middle of the oil wells.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe economy collection device for well head low pressure associated gas recycle, in order to solve the above-mentioned background art and propose the position that china's oil field oil well overwhelms majority all distributes in remote area, to the recovery of associated gas, generally adopt carbon steel oil pipe to connect, collect the joint transfer station again, and the centre does not basically have gas-liquid separation equipment, no matter transport in earlier stage under this kind of condition, the connecting line, it is all very troublesome still to maintain the maintenance pipeline in later stage, it freezes stifled phenomenon to take place very easily winter, lead to certain regional pipeline paralysis, the unable problem of using.
In order to achieve the above object, the utility model provides a following technical scheme: a safe and economical collection device for wellhead low pressure associated gas recycle comprising:
the oil-gas separation assembly comprises a separation tank body, supporting legs are welded at the bottom of the separation tank body, two first fixed blocks are welded on the inner side wall of the separation tank body close to a gas outlet, a frame body is fixed on the tops of the two first fixed blocks through bolts, a mist catching net is welded on the inner side wall of the frame body, and a second fixed block is welded on the inner side wall of the first fixed block;
the liquid level sensor is fixed on the second fixing block;
the oil outlet assembly is connected with the separation tank body;
the first tank body is connected with the oil outlet assembly;
the liquid inlet end of the separation tank body is connected with the liquid inlet component;
the gas outlet end of the separation tank body is connected with the gas outlet assembly;
and the second tank body is connected with the air outlet assembly.
As further preferable in the present technical solution: the oil outlet assembly comprises a pipe body F, the oil outlet end of the separation tank body is connected with the pipe body F through a flange, the electromagnetic valve is fixed on the pipe body F through a flange, the output end of the electromagnetic valve is connected with the liquid level sensor through a wire, and the pipe body G is fixed on the liquid outlet end of the electromagnetic valve through a flange.
As further preferable in the present technical solution: the mist catching net is of a circular structure.
As further preferable in the present technical solution: the first fixing block and the second fixing block are both arc-shaped sheet structures.
As further preferable in the present technical solution: the feed liquor subassembly includes body A, check valve, body B, import hand valve and body C, the feed liquor end flange of the knockout drum body is fixed body C, body C feed liquor end flange is fixed import hand valve, the feed liquor end flange of import hand valve is fixed the check valve, the feed liquor end flange of check valve is fixed body A.
As further preferable in the present technical solution: the gas outlet assembly comprises a pipe body D, an outlet hand valve and a pipe body E, a gas outlet end flange of the separation tank body is fixed to the pipe body D, a gas outlet end flange of the pipe body D is fixed to the outlet hand valve, and a gas outlet end flange of the outlet hand valve is fixed to the pipe body E.
As further preferable in the present technical solution: the sewage discharge end flange of the separation tank body is fixed with a liquid discharge hand valve, and the sewage discharge end flange of the liquid discharge hand valve is fixed with a sewage discharge pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the gas-liquid separator is adopted at the low-lying part of the pipeline, the separator adopts a natural sedimentation method, the liquid and the gas components are separated by utilizing the characteristics of sudden space increase and gas flow velocity reduction, and meanwhile, a layer of mist catching net is added at the outlet, so that water mist which is not completely settled can be caught, the water in the gas is further separated, and the possibility of freezing and blocking of the subsequent pipeline is greatly reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the internal structure of the oil-gas separator of the present invention;
fig. 3 is a schematic view of the top view structure of the mist-catching net of the present invention.
In the figure: 1. an oil-gas separation assembly; 11. a first fixed block; 12. a frame body; 13. a second fixed block; 14. supporting legs; 15. a liquid discharge hand valve; 16. a blow-off pipe; 17. a mist catching net; 18. separating the tank body; 2. a liquid level sensor; 3. a first tank; 4. a second tank; 5. a liquid inlet component; 51. a pipe body A; 52. a one-way valve; 53. a pipe body B; 54. an inlet hand valve; 55. a pipe body C; 6. an air outlet assembly; 61. a pipe body D; 62. an outlet hand valve; 63. a pipe body E; 7. an oil outlet assembly; 71. a pipe body F; 72. an electromagnetic valve; 73. a pipe body G.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-3, the present invention provides a technical solution: a safe and economical collection device for wellhead low pressure associated gas recycle comprising:
the oil-gas separation assembly 1 comprises a separation tank body 18, supporting legs 14 are welded at the bottom of the separation tank body 18, two first fixing blocks 11 are welded on the inner side wall of the separation tank body 18 close to an air outlet, a frame body 12 is fixed on the tops of the two first fixing blocks 11 through bolts, a mist catching net 17 is welded on the inner side wall of the frame body 12, and a second fixing block 13 is welded on the inner side wall of the first fixing block 11;
the liquid level sensor 2 is fixed on the second fixing block 13;
the oil outlet assembly 7 is connected with the separation tank body 18, and the oil outlet assembly 7 is connected with the separation tank body 18;
the first tank body 3 is connected with the oil outlet assembly 7;
the liquid inlet end of the separation tank body 18 is connected with the liquid inlet component 5;
the gas outlet end of the separation tank body 18 is connected with the gas outlet assembly 6;
and the second tank body 4 is connected with the air outlet assembly 6.
In this embodiment, specifically: the oil outlet assembly 7 comprises a pipe body F71, the oil outlet end of the separation tank 18 is connected with the pipe body F71 in a flange mode, an electromagnetic valve 72 is fixed on the pipe body F71 in a flange mode, the output end of the electromagnetic valve 72 is connected with the liquid level sensor 2 through a lead, and the pipe body G73 is fixed on the liquid outlet end flange of the electromagnetic valve 72; is detected by the level sensor 2, and transmits a detection signal to the solenoid valve 72, so that the solenoid valve 72 leads out the oil in the separation tank 18.
In this embodiment, specifically: the mist catching net 17 is of a circular structure; the separated gas can capture the water mist which is not completely settled through the mist catching net 17, further separate the water in the gas, and greatly reduce the possibility of freezing and blocking of the rear pipeline.
In this embodiment, specifically: the first fixing block 11 and the second fixing block 13 are both arc-shaped sheet structures; the first fixing block 11 is used for facilitating the installation of the frame body 12 in the separation tank body 18, and the second fixing block 13 is used for facilitating the installation of the liquid level sensor 2 in the separation tank body 18.
In this embodiment, specifically: the liquid inlet assembly 5 comprises a pipe body A51, a one-way valve 52, a pipe body B53, an inlet hand valve 54 and a pipe body C55, wherein the pipe body C55 is fixed on a liquid inlet flange of the separation tank 18, the inlet hand valve 54 is fixed on a liquid inlet flange of the pipe body C55, the one-way valve 52 is fixed on a liquid inlet flange of the inlet hand valve 54, and the pipe body A51 is fixed on a liquid inlet flange of the one-way valve 52; the situation of backflow of the associated gas is avoided by the arrangement of the check valve 52, and the associated gas is guided into the separation tank 18 through the check valve 52, the pipe body B53, the inlet hand valve 54 and the pipe body C55 by the pipe body A51.
In this embodiment, specifically: the air outlet assembly 6 comprises a pipe body D61, an outlet hand valve 62 and a pipe body E63, wherein an air outlet end flange of the separation tank body 18 is fixed with the pipe body D61, an air outlet end flange of the pipe body D61 is fixed with the outlet hand valve 62, and an air outlet end flange of the outlet hand valve 62 is fixed with the pipe body E63; the outlet hand valve 62 is opened, and the gas is introduced into the second tank 4 through the pipe D61, the outlet hand valve 62, and the pipe E63 and collected.
In this embodiment, specifically: a drain end flange of the separation tank body 18 is fixed with a drain hand valve 15, and a drain pipe 16 is fixed with the drain end flange of the drain hand valve 15; after the collecting device is used for a period of time, impurities are accumulated in the separating tank body 18, and at the moment, the liquid discharge hand valve 15 is opened, so that the impurities in the separating tank body 18 are led out through the sewage discharge pipe 16, and the normal use of the separating tank body 18 is further ensured.
In this embodiment, the model of the liquid level sensor 2 is MIK-P260, when the oil in the separation tank 18 reaches a certain height, the oil is detected by the liquid level sensor 2, and a detection signal is transmitted into the electromagnetic valve 72, so that the electromagnetic valve 72 leads out the oil in the separation tank 18, and the model of the electromagnetic valve 72 is N4V 210-08.
Working principle or structural principle: when a user collects low-pressure associated gas at a wellhead, the associated gas is guided into the separation tank body 18 through the pipe body A51 by the check valve 52, the pipe body B53, the inlet hand valve 54 and the pipe body C55, the separation tank body 18 adopts a natural sedimentation method, liquid is separated from gas components by utilizing the characteristics of sudden increase of space and reduction of gas flow rate, meanwhile, the separated gas can capture the water mist which is not completely settled through the mist catching net 17, further separate the water in the gas, greatly reduce the possibility of the freezing and blocking phenomenon of the rear pipeline, lead the gas into the second tank body 4 through the pipe body D61, the outlet hand valve 62 and the pipe body E63 for collection, when the liquid in the separation tank 18 reaches a certain height, the liquid level sensor 2 detects the liquid and transmits a detection signal into the electromagnetic valve 72, so that the electromagnetic valve 72 guides out the oil in the separation tank 18, and the oil is guided into the first tank 3 through the pipe body F71 and the pipe body G73 and collected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A safe and economical collection device for wellhead low-pressure associated gas recycling, comprising:
the oil-gas separation assembly (1) comprises a separation tank body (18), supporting legs (14) are welded at the bottom of the separation tank body (18), two first fixing blocks (11) are welded on the inner side wall of the separation tank body (18) close to a gas outlet, a frame body (12) is fixed on the top of each first fixing block (11) through bolts, a mist catching net (17) is welded on the inner side wall of the frame body (12), and a second fixing block (13) is welded on the inner side wall of each first fixing block (11);
the liquid level sensor (2), the said liquid level sensor (2) is fixed on said second fixed block (13);
the oil outlet assembly (7), the oil outlet assembly (7) is connected with the separation tank body (18);
the first tank body (3), the first tank body (3) is connected with the oil outlet assembly (7);
the liquid inlet end of the separation tank body (18) is connected with the liquid inlet component (5);
the gas outlet end of the separation tank body (18) is connected with the gas outlet component (6);
the second tank body (4), the second tank body (4) with go out gas component (6) and be connected.
2. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: the oil outlet assembly (7) comprises a pipe body F (71), the oil outlet end of the separation tank body (18) is connected with the pipe body F (71) through a flange, an electromagnetic valve (72) is fixed on the pipe body F (71) through a flange, the output end of the electromagnetic valve (72) is connected with the liquid level sensor (2) through a wire, and the pipe body G (73) is fixed on the liquid outlet end of the electromagnetic valve (72) through a flange.
3. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: the mist catching net (17) is of a circular structure.
4. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: the first fixing block (11) and the second fixing block (13) are both arc-shaped sheet structures.
5. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: feed liquor subassembly (5) include body A (51), check valve (52), body B (53), import hand valve (54) and body C (55), the feed liquor end flange of the knockout drum body (18) is fixed body C (55), body C (55) feed liquor end flange is fixed import hand valve (54), the feed liquor end flange of import hand valve (54) is fixed check valve (52), the feed liquor end flange of check valve (52) is fixed body A (51).
6. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: the gas outlet assembly (6) comprises a pipe body D (61), an outlet hand valve (62) and a pipe body E (63), a gas outlet end flange of the separation tank body (18) is fixed to the pipe body D (61), a gas outlet end flange of the pipe body D (61) is fixed to the outlet hand valve (62), and a gas outlet end flange of the outlet hand valve (62) is fixed to the pipe body E (63).
7. A safe and economical collection device for recovery and utilization of wellhead low pressure associated gas according to claim 1, characterized in that: a drainage hand valve (15) is fixed on a drainage end flange of the separation tank body (18), and a drainage pipe (16) is fixed on the drainage end flange of the drainage hand valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921235856.1U CN210509139U (en) | 2019-08-01 | 2019-08-01 | Safe and economical collecting device for recycling low-pressure associated gas at well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921235856.1U CN210509139U (en) | 2019-08-01 | 2019-08-01 | Safe and economical collecting device for recycling low-pressure associated gas at well mouth |
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| Publication Number | Publication Date |
|---|---|
| CN210509139U true CN210509139U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921235856.1U Active CN210509139U (en) | 2019-08-01 | 2019-08-01 | Safe and economical collecting device for recycling low-pressure associated gas at well mouth |
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| Country | Link |
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| CN (1) | CN210509139U (en) |
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2019
- 2019-08-01 CN CN201921235856.1U patent/CN210509139U/en active Active
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