CN203321441U - Sheet sealing pressure difference type oil drainage device - Google Patents
Sheet sealing pressure difference type oil drainage device Download PDFInfo
- Publication number
- CN203321441U CN203321441U CN2013203205061U CN201320320506U CN203321441U CN 203321441 U CN203321441 U CN 203321441U CN 2013203205061 U CN2013203205061 U CN 2013203205061U CN 201320320506 U CN201320320506 U CN 201320320506U CN 203321441 U CN203321441 U CN 203321441U
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- valve body
- sealing
- oil drainage
- drainage device
- gland
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Abstract
The utility model discloses a sheet sealing pressure difference type oil drainage device and belongs to the technical field of trip operations of well repair. A connection buckle type outer buckle is arranged at one end of a valve body, a connection buckle type inner buckle is arranged at the other end of the valve body, two symmetrical holes with shoulders are formed in the valve body, 60-degree sealing threads are arranged at the ends of the holes, the sealing threads are connected with pressing covers, sealing grooves and inner hexagonal holes are formed in the pressing covers, and sealing rings are connected between the sealing grooves of the pressing covers and the shoulders. By the aid of the oil drainage device, oil drainage can be achieved through quick breaking-through of tubing-casing annular spaces, the working principle is simple and practical, and well head pollution caused by ejection of oil liquids inside a well during pulling out can be avoided.
Description
Technical field
The utility model relates to a kind of foil seal differential-pressure type oil drain device, belongs to well workover round trip technical field.
Background technology
When round trip, the phenomenon of spraying while rising while usually occurring tripping out sucker rod or oil pipe, main cause is that stratum makes in pipe after fuel-displaced and wax deposition occurs, dead oil sticks on tube wall and the precipitation of shaking out, make the pipe internal channel block, add in the passage that the upper and lower swabbing action of throw of pump in production makes to block and one or more snippets oil occurs.Gas-liquid builds the pressure, and causes the adhesion of wax deposition, dead oil to strengthen, and in annular space, can't realize draining.So the fluid in the middle ejection that makes a trip causes the well head cleaning extremely to take time and effort.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of foil seal differential-pressure type oil drain device.
A kind of foil seal differential-pressure type oil drain device, one end of valve body has the button-type of connection to detain outward, the other end of valve body has button in the button-type of connection, valve body has the hole that shoulder is arranged of two place's symmetries, one end in hole has the sealing thread of 60 degree, sealing thread connects gland, and gland is provided with seal groove and interior hexagonal hole, and sealing ring is connected between the seal groove and shoulder of gland.
There is the hole of shoulder to equate with the area of the interior hexagonal hole of gland.
The beneficial effect of advantage of the present utility model and generation is:
1, can realize draining by pressurization in oil pipe or in sleeve pipe, get through annular space.
2, adopt inside and outside two-layer sealing, not there will be in the time of can guaranteeing its work to leak to press to make bleeder to work.
3, can get through rapidly oil, overlap the purpose that annular space is realized draining, operating principle is simple and practical.
4, avoided occurring that the ejection of OIH liquid causes well head to pollute fully when pulling out of hole.
The accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to following, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model, for explaining the utility model, does not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of thin slice differential-pressure type oil drain device, mainly be comprised of valve body 1, thin slice 2, sealing ring 3, gland 4; One end of valve body 1 has the connection button-type that is applicable to various variable buckle joints and tubing string to detain outward, the other end of valve body 1 has button in the connection button-type that is applicable to various variable buckle joints and tubing string, valve body 1 has the hole that shoulder is arranged 5 of two place's symmetries, one end in hole 5 has the sealing thread of 60 degree, sealing thread connects gland 4, gland 4 is provided with seal groove and interior hexagonal hole, and sealing ring 3 is connected between the seal groove and shoulder of gland 4.
Embodiment 2:
As shown in Figure 1, a kind of thin slice differential-pressure type oil drain device, mainly be comprised of valve body 1, thin slice 2, sealing ring 3, gland 4.Valve body 1 two ends are provided with the connection button-type that is applicable to various variable buckle joints and tubing string, being provided with two place's symmetries in body has the hole of shoulder, the shoulder outer end is provided with 60 degree sealing threads, thin slice 2 is pressed in the shoulder place and adopts nylon material, can not produce the distortion pressure release after can guaranteeing to form certain head of liquid in pipe, by suppressing, can realize that in lower pressure the distortion fracture realizes the draining purpose.Gland 4 is provided with seal groove and interior hexagonal hole, with two place's hole areas of valve body 1, equate and with the aisle spare that pump is consistent, can make like this discharge capacity after draining be consistent, also make the compression area of thin slice increase simultaneously and easily open oil, cover annular space.The shoulder outer end is provided with 60 degree sealing threads, and sealing ring 3 is contained in seal groove and tightly is pressed on thin slice 2.
During trip-out, this bleeder is connected between tubing string, and by oil pipe or in sleeve pipe, suppressing thin slice 2 is extruded to through hole, fluid can freely pass through the hole of valve body 1 or the interior hexagonal hole of gland 4.
Be pressed with thin slice in the shoulder in valve body of the present utility model two holes, place, on gland, sealing ring is housed and thin slice fits tightly, occur while avoiding thin metal plate that the gap pressure release can't realize draining, all be designed to 60 ° of sealing threads at the screw thread of valve body shoulder outer end and the screw thread of gland, can guarantee in working order positive confinement.The valve body two ends are provided with a male mother connection button-type, variable buckle and the tubing string of applicable various connections.Pressurize and can realize the thin slice extrusion cavities is realized the purpose of draining in oil pipe or sleeve pipe during use.
As mentioned above, embodiment of the present utility model is explained, but, as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation also all is included in protection domain of the present utility model.
Claims (2)
1. a foil seal differential-pressure type oil drain device, an end that it is characterized in that valve body has the button-type of connection to detain outward, the other end of valve body has button in the button-type of connection, valve body has the hole that shoulder is arranged of two place's symmetries, one end in hole has the sealing thread of 60 degree, sealing thread connects gland, and gland is provided with seal groove and interior hexagonal hole, and sealing ring is connected between the seal groove and shoulder of gland.
2. a kind of foil seal differential-pressure type oil drain device according to claim 1, is characterized in that having the hole of shoulder to equate with the area of the interior hexagonal hole of gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203205061U CN203321441U (en) | 2013-06-05 | 2013-06-05 | Sheet sealing pressure difference type oil drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203205061U CN203321441U (en) | 2013-06-05 | 2013-06-05 | Sheet sealing pressure difference type oil drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321441U true CN203321441U (en) | 2013-12-04 |
Family
ID=49660804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203205061U Expired - Fee Related CN203321441U (en) | 2013-06-05 | 2013-06-05 | Sheet sealing pressure difference type oil drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412457A (en) * | 2018-04-28 | 2018-08-17 | 盐城市恒通石油机械制造有限公司 | A kind of piston level pressure bleeder |
| CN110552669A (en) * | 2018-05-31 | 2019-12-10 | 中国石油天然气股份有限公司 | Differential pressure injection tool |
-
2013
- 2013-06-05 CN CN2013203205061U patent/CN203321441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412457A (en) * | 2018-04-28 | 2018-08-17 | 盐城市恒通石油机械制造有限公司 | A kind of piston level pressure bleeder |
| CN110552669A (en) * | 2018-05-31 | 2019-12-10 | 中国石油天然气股份有限公司 | Differential pressure injection tool |
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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: 20131204 Termination date: 20210605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |