CN202645515U - Self-actuated gas recovery device - Google Patents
Self-actuated gas recovery device Download PDFInfo
- Publication number
- CN202645515U CN202645515U CN 201220243879 CN201220243879U CN202645515U CN 202645515 U CN202645515 U CN 202645515U CN 201220243879 CN201220243879 CN 201220243879 CN 201220243879 U CN201220243879 U CN 201220243879U CN 202645515 U CN202645515 U CN 202645515U
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- valve
- valve rod
- plunger
- spool
- plug
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Abstract
A self-actuated gas recovery device comprises a valve body, a valve core, a valve core pressing cap, a plunger, a plunger pressing cap, a valve rod, a valve plug, a centralizer and a restoring spring. A vertical casing gas channel is arranged inside the valve core, a gas-bleed hole is arranged on the upper portion of the valve core, a transverse plunger hole is arranged in the middle of the valve core, and a screwed joint is arranged at the external end of the plunger hole. The valve rod is composed of a lathy round rod, the plunger is fixedly connected at the front end of the valve rod, the valve core is inserted and installed in an inner cavity of the valve body vertically, the valve rod is arranged in the inner cavity of the valve body transversely, and the plunger arranged at the front end of the valve rod stretches into the plunger hole in the middle of the valve core. The plunger pressing cap is connected with the screwed joint arranged at the external end of the plunger hole in screw mode, the valve plug is fixedly connected on the valve rod, and the centralizer is sleeved on the valve rod, and the restoring spring abuts against the centralizer. The self-actuated gas recovery device solves the problem that the casing gas holding pressure results in that the working fluid level of an oil well drops, improves the output of crude oil, valuable natural gas resources are recycled and reused, and therefore air pollution is avoided and the aim of safe, green and environmental oil and gas development is achieved.
Description
Technical field
The utility model relates to field of petroleum exploitation, particularly oil field well casing gas recovery device, specifically a kind of " self-operated type combustion gas retracting device.
Background technology
In oilfield development process, the oil gas field oil-bearing structure of a lot of hyposmosis is arranged, production capacity is low, sleeve pipe tolerance is few, pressure is low, is difficult to recycle.In the conventional exploitation, the mode that often adopts emptying and igniting to burn is processed casing gas (natural gas), has caused atmosphere pollution, has also wasted non-renewable natural gas resource, forms vicious circle.Although some Oilfield using straight vent valves carry out the recycling of casing gas, also there is distinct disadvantage in this practice, causes exactly casing gas to build the pressure for a long time, causes the producing fluid level of oil well to descend, and has affected oil well output.Therefore, be badly in need of a kind of new device of research and development, solve simultaneously above-mentioned two problems, carry out the recycling of casing gas (natural gas).
The utility model content
The purpose of this utility model is to provide a kind of self-operated type combustion gas retracting device, solved the problem that casing gas builds the pressure and causes well fluid level to descend, improved crude oil yield, again the natural gas resource recycling of preciousness, avoid atmosphere pollution, realized oil and gas development purpose safe, green, environmental protection.
For achieving the above object, the utility model is by the following technical solutions:
A kind of self-operated type combustion gas retracting device, comprise valve body, spool, the spool pressure cap, plunger, the plunger pressure cap, valve rod, valve plug, centralizer, back-moving spring, pad, locknut, nut, the valve body two ends are provided with joint, end face and the bottom surface at valve body middle part are respectively arranged with vertical plug-in opening, plug-in opening is made of shoulder hole, spool is cylindrical, the top of spool is provided with annular boss, the bottom of spool is provided with nipple, be provided with vertical casing gas passage in the spool, the top of spool is provided with air vent, air vent and casing gas channel connection, the middle part of spool is provided with horizontal plunger hole, the outer end of plunger hole is provided with nipple, plunger hole and casing gas channel connection, valve rod is made of an elongated round bar, described plunger is fixed in the front end of valve rod, the middle part of valve rod is provided with position block and screw thread, the afterbody of valve rod is provided with nipple, spool vertically is inserted in the body cavity, the annular boss on spool top is resisted against in the plug-in opening of valve body end face, the nipple of spool bottom is passed by the plug-in opening of valve body bottom surface, compressed by the spool pressure cap, valve rod is horizontally installed in the body cavity, the plunger of valve rod front end stretches in the plunger hole at spool middle part, the plunger pressure cap is screwed onto on the nipple of plunger hole outer end, valve plug is enclosed within the valve rod middle part, the position of valve plug is corresponding with the position of valve port in the valve body, the front end of valve plug is spacing by the position block at valve rod middle part, the rear end of valve plug is spacing by locknut, locknut is screwed onto on the screw thread at valve rod middle part, centralizer is disc, have centre bore and outer ring, spoke by radially between centre bore and the outer ring is connected, the centre bore of centralizer is enclosed within on the valve rod, centralizer is by the shaft shoulder location of valve interior wall, back-moving spring is enclosed within the rear portion of valve rod, the front end of back-moving spring is resisted against on the centralizer, the rear end of back-moving spring is resisted against on the pad, pad is located by nut, and nut is screwed onto on the nipple of valve rod afterbody.
Described joint can be made of screw thread, also can be made of flange, can also be made of the ninth of the ten Heavenly Stems oil.
Innovation of the present utility model is:
This device is organically combined a ball-and-seat and a gas emission valve, realize the function that a valve is dual-purpose, this device is installed in the oil pipe place of entering the station, gate directly is connected with entering the station, oil well recovers the oil by oil pumper, the method of operation of oil pumper is up and down reciprocatingly mechanical movement, oil well discharge opeing when oil pumper runs to up stroke, and oil well stops discharge opeing during down stroke.The hydrodynamic that this device has produced when having utilized cleverly the discharge opeing of oil pumper up stroke is opened being connected to the enter the station valve plug of ball-and-seat at gate place of oil pipe, realizes the oil well normal drainage.The simultaneously motion by valve rod, closed again the gas emission valve in the valve body, when oil pumper runs to down stroke, the valve plug of the ball-and-seat of this device is closed, by the motion of valve rod the gas emission valve (being made of spool) in the valve body is opened simultaneously, realize exhaust, casing gas (natural gas) is discharged in the valve body, when oil pumper runs to next up stroke, the oil well discharge opeing, crude oil enters valve body, mixes with casing gas in the valve body, enter together in the pipe network of downstream, enter combined station centralized recovery recycling.
This device can periodically be discharged casing gas, has solved the problem that casing gas builds the pressure and causes well fluid level to descend, and has improved crude oil yield, has solved again the problem that well casing gas reclaims simultaneously.
Another advantage of this device is: adopt ball-and-seat and gas emission valve combining structure, crude oil self has certain temperature, when crude oil passes through ball-and-seat, crude oil is from gas emission valve circumferential flux mistake, played insulation effect to casing gas again, obvious antifreeze function has been arranged, can under cold environmental conditions, use, have advantages of and do not take any antifreezing measures also can play insulation effect, realized oil field development purpose safe, green, environmental protection.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the internal construction schematic diagram of Fig. 1.
Fig. 3 is the lateral view of Fig. 2.
Fig. 4 is the elevation of Fig. 2.
Fig. 5 is the exploded view of Fig. 3.
Fig. 6 is the exploded view of Fig. 5.
Fig. 7 is the working state schematic representation of the utility model embodiment one, shows the state that the casing gas passage is opened.
Fig. 8 is the working state schematic representation of the utility model embodiment one, shows the state of casing gas pathway closure.
Fig. 9 is the structural representation of the utility model embodiment two.
Figure 10 is the structural representation of the utility model embodiment three.
The specific embodiment
Number in the figure
1 valve body, 2 spools, 3 spool pressure caps, 4 plungers
5 plunger pressure caps, 6 valve rods, 7 valve plugs, 8 centralizers
9 back-moving springs, 10 pads, 11 joints, 12 joints
13 nipples, 14 plunger holes, 15 nipples, 16 casing gas passages
17 centre bores, 18 centre bores, 19 outer rings, 20 locknuts
21 screw threads, 22 annular boss, 23 nipples, 24 plug-in openings
25 plug-in openings, 26 air vents, 27 position blocks, 28 spokes
29 shaft shoulders, 30 nuts, 31 valve ports
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the utility model is a kind of self-operated type combustion gas retracting device, comprise valve body 1, spool 2, spool pressure cap 3, plunger 4, plunger pressure cap 5, valve rod 6, valve plug 7, centralizer 8, back-moving spring 9, pad 10, locknut 20, nut 30, valve body 1 two ends are provided with joint 11,12, end face and the bottom surface at valve body 1 middle part are respectively arranged with vertical plug-in opening 24,25, plug-in opening 24,25 all is shoulder hole, spool 2 is cylindrical, the top of spool 2 is provided with annular boss 22, the bottom of spool 2 is provided with nipple 13, be provided with vertical casing gas passage 16 in the spool 2, the top of spool 2 is provided with air vent 26, air vent 26 is communicated with casing gas passage 16, the middle part of spool 2 is provided with horizontal plunger hole 14, the outer end of plunger hole 14 is provided with nipple 15, plunger hole 14 is communicated with casing gas passage 16, please refer to Fig. 5, valve rod 6 is made of an elongated round bar, plunger 4 is fixed in the front end of valve rod 6, the middle part of valve rod 6 is provided with position block 27 and screw thread 21, the afterbody of valve rod 6 is provided with nipple 23, spool 2 vertically is inserted in valve body 1 inner chamber, the annular boss 22 on spool 2 tops is resisted against in the plug-in opening 24 of valve body 1 end face, the nipple 13 of spool 2 bottoms is passed by the plug-in opening 25 of valve body 1 bottom surface, compressed by spool pressure cap 3, be the tight fit relation between the outer wall of spool pressure cap 3 and the plug-in opening 25, also be the tight fit relation between the inwall of spool pressure cap 3 and the spool 2, nipple 13 is used for being connected with the casing gas conveyance conduit, valve rod 6 is horizontally installed in the inner chamber of valve body 1, the plunger 4 of valve rod 6 front ends stretches in the plunger hole 14 at spool middle part, plunger pressure cap 5 is screwed onto on the nipple 15 of plunger hole outer end, thereby plunger 4 is carried out axial limiting, the centre bore 17 of valve plug 7 is enclosed within valve rod 6 middle parts, the position of valve plug 7 is corresponding with the position of valve port 31 in the valve body, the front end of valve plug 7 is spacing by the position block 27 at valve rod middle part, the rear end of valve plug 7 is spacing by locknut 20, locknut 20 is screwed onto on the screw thread 21 at valve rod middle part, centralizer 8 is disc, have centre bore 18 and outer ring 19, spoke 28 by radially between centre bore 18 and the outer ring 19 is connected, the centre bore 18 of centralizer 8 is enclosed within on the valve rod 6, centralizer 8 is by the shaft shoulder 29 location of valve body 1 inwall, back-moving spring 9 is enclosed within the rear portion of valve rod 6, the front end of back-moving spring 9 is resisted against on the centralizer 8, the rear end of back-moving spring 9 is resisted against on the pad 10, pad 10 is by nut 30 location, and nut 30 is screwed onto on the nipple 23 of valve rod 6 afterbodys.This device is organically combined a ball-and-seat and a gas emission valve, realize the function that a valve is dual-purpose, this device is installed in the oil pipe place of entering the station, directly be connected with the gate that enters the station, please refer to Fig. 7, Fig. 8, the joint 11 of valve body 1 directly is connected with the gate that enters the station, the joint 12 of valve body 1 is connected with downstream line, joint 11,12 can be screw thread as shown in Figure 1, also can be flange as shown in Figure 9, can also be oil the ninth of the ten Heavenly Stems as shown in figure 10.Oil well recovers the oil by oil pumper, and the method for operation of oil pumper is up and down reciprocatingly mechanical movement, oil well discharge opeing when oil pumper runs to up stroke, and oil well stops discharge opeing during down stroke.When oil pumper runs to up stroke, the oil well discharge opeing, crude oil enters in the valve body 1, promotes valve plug 7, and valve plug 7 overcomes the elastic force effect of back-moving spring 9 and moves backward, opens valve port 31, and crude oil enters downstream line through valve port 31, realizes the oil well normal drainage.Valve plug 7 is backward in the moving process, and is mobile backward by position block 27 band ovable valve stems 6, and plunger 4 is inserted in the plunger hole 14 fully, as shown in Figure 8, casing gas passage 16 closed.When oil pumper runs to down stroke, oil well stops discharge opeing, valve plug 7 moves forward playback under the elastic force effect of back-moving spring 9, close port 31, valve plug 7 moves forward in the process, moves forward by locknut 20 band ovable valve stems 6, and plunger 4 partly withdraws from from plunger hole 14, as shown in Figure 7, casing gas passage 16 is opened, realized exhaust, casing gas (natural gas) is discharged in the valve body, when oil pumper runs to next up stroke, oil well discharge opeing, crude oil enter in the valve body 1, mix with casing gas in the valve body 1, enter together in the pipe network of downstream, enter combined station centralized recovery recycling.
This device can periodically be discharged casing gas, has solved the problem that casing gas builds the pressure and causes well fluid level to descend, and has improved crude oil yield, has solved again the problem that well casing gas reclaims simultaneously.
Another advantage of this device is: adopt ball-and-seat and gas emission valve combining structure, crude oil self has certain temperature, when crude oil passes through ball-and-seat, crude oil is from gas emission valve circumferential flux mistake, played insulation effect to casing gas again, obvious antifreeze function has been arranged, can under cold environmental conditions, use, have advantages of and do not take any antifreezing measures also can play insulation effect, realized oil field development purpose safe, green, environmental protection.
Claims (4)
1. self-operated type combustion gas retracting device, comprise valve body, spool, the spool pressure cap, plunger, the plunger pressure cap, valve rod, valve plug, centralizer, back-moving spring, pad, locknut, nut, it is characterized in that: the valve body two ends are provided with joint, end face and the bottom surface at valve body middle part are respectively arranged with vertical plug-in opening, plug-in opening is made of shoulder hole, spool is cylindrical, the top of spool is provided with annular boss, the bottom of spool is provided with nipple, be provided with vertical casing gas passage in the spool, the top of spool is provided with air vent, air vent and casing gas channel connection, the middle part of spool is provided with horizontal plunger hole, the outer end of plunger hole is provided with nipple, plunger hole and casing gas channel connection, valve rod is made of an elongated round bar, described plunger is fixed in the front end of valve rod, the middle part of valve rod is provided with position block and screw thread, the afterbody of valve rod is provided with nipple, spool vertically is inserted in the body cavity, the annular boss on spool top is resisted against in the plug-in opening of valve body end face, the nipple of spool bottom is passed by the plug-in opening of valve body bottom surface, compressed by the spool pressure cap, valve rod is horizontally installed in the body cavity, the plunger of valve rod front end stretches in the plunger hole at spool middle part, the plunger pressure cap is screwed onto on the nipple of plunger hole outer end, valve plug is enclosed within the valve rod middle part, the position of valve plug is corresponding with the position of valve port in the valve body, the front end of valve plug is spacing by the position block at valve rod middle part, the rear end of valve plug is spacing by locknut, locknut is screwed onto on the screw thread at valve rod middle part, centralizer is disc, have centre bore and outer ring, spoke by radially between centre bore and the outer ring is connected, the centre bore of centralizer is enclosed within on the valve rod, centralizer is by the shaft shoulder location of valve interior wall, back-moving spring is enclosed within the rear portion of valve rod, the front end of back-moving spring is resisted against on the centralizer, the rear end of back-moving spring is resisted against on the pad, pad is located by nut, and nut is screwed onto on the nipple of valve rod afterbody.
2. a kind of self-operated type combustion gas retracting device as claimed in claim 1, it is characterized in that: described joint is made of screw thread.
3. a kind of self-operated type combustion gas retracting device as claimed in claim 1, it is characterized in that: described joint is made of flange.
4. a kind of self-operated type combustion gas retracting device as claimed in claim 1 is characterized in that: described joint is made of oil the ninth of the ten Heavenly Stems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243879 CN202645515U (en) | 2012-05-25 | 2012-05-25 | Self-actuated gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243879 CN202645515U (en) | 2012-05-25 | 2012-05-25 | Self-actuated gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645515U true CN202645515U (en) | 2013-01-02 |
Family
ID=47414637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243879 Expired - Fee Related CN202645515U (en) | 2012-05-25 | 2012-05-25 | Self-actuated gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422818A (en) * | 2013-07-28 | 2013-12-04 | 王帅伟 | Environment-friendly soiling solution recovery device |
| CN111720094A (en) * | 2020-07-02 | 2020-09-29 | 中国石油天然气股份有限公司 | Gas-collecting gas well remote switch valve core, equipment and use method thereof |
-
2012
- 2012-05-25 CN CN 201220243879 patent/CN202645515U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422818A (en) * | 2013-07-28 | 2013-12-04 | 王帅伟 | Environment-friendly soiling solution recovery device |
| CN111720094A (en) * | 2020-07-02 | 2020-09-29 | 中国石油天然气股份有限公司 | Gas-collecting gas well remote switch valve core, equipment and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |