CN204252915U - A kind of oil pipe self-packer - Google Patents
A kind of oil pipe self-packer Download PDFInfo
- Publication number
- CN204252915U CN204252915U CN201420681535.5U CN201420681535U CN204252915U CN 204252915 U CN204252915 U CN 204252915U CN 201420681535 U CN201420681535 U CN 201420681535U CN 204252915 U CN204252915 U CN 204252915U
- Authority
- CN
- China
- Prior art keywords
- self
- sealing rubber
- rubber core
- outer shroud
- styled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
A kind of oil pipe self-packer, comprise flange cavity and self-styled composite member, self-styled composite member is arranged in flange cavity by major thread, self-styled composite member comprises inner ring, outer shroud, self-sealing rubber core, pin, the self-sealing rubber core upper inner face of cylinder and inner ring periphery contact, outside self-sealing rubber core, the face of cylinder and outer shroud inner headed face contact, and self-sealing rubber core, inner ring and outer shroud are linked into an integrated entity by pin.The self-styled composite member of this device is connected by major thread with between flange cavity, makes installation quick, convenient, realizes well pressure and help envelope, increase sealing, greatly reduce consuming cost.
Description
Technical field
The utility model belongs under down-hole is Room-temperature low-pressure environment, does not take kill-job measure, can complete the apparatus for work field of lower oil tube, particularly relates to a kind of oil pipe self-packer.
Background technology
The controlled snubbing serving technology of oil well can to reduce in operation process well killing fluid to the pollution of oil reservoir, but this technical requirements will keep the movable sealing of oil jacket annular space when lower oil tube operation, realize effective blowout prevention, ensure job safety, require that the efficiency of operation is high, cost is low simultaneously.
Oil pipe blowout device in the past, a type is conventional oil pipe blowout device, be mainly used in the preventing spraying operation of Operating Pressure process, but this apparatus structure is huge, efficiency is low, cost is high.Another kind of type is self-sealing core, but it exists defects such as installing inconvenience, cost is high, reducing scope is little.
Utility model content
The utility model designs self-styled composite member by split, realizes box cupling and Seal Oil cover annular space, and solves operating cost problem; By the flange cavity of design specialized, the installation connectivity problem of solving device.Design a kind of novel oil pipe self-packer.
A kind of oil pipe self-packer, comprise flange cavity and self-styled composite member, it is characterized in that, self-styled composite member is arranged in flange cavity by major thread, self-styled composite member comprises inner ring, outer shroud, self-sealing rubber core, pin, the self-sealing rubber core upper inner face of cylinder and inner ring periphery contact, and outside self-sealing rubber core, the face of cylinder and outer shroud inner headed face contact, and self-sealing rubber core, inner ring and outer shroud are linked into an integrated entity by pin.
Further, inner ring is circular ring structure with the level, and a step cutting pattern is also arranged at self-sealing rubber core top, and the step of self-sealing rubber core is sandwiched between inner ring step and outer shroud upper surface.
Further, outer shroud is cylindrical structure, and outer shroud lower outside is that major thread is connected with flange cavity.
Further, flange cavity profile is drum structure, and inside is cylindrical cavity, and the cylindrical cavity top of flange cavity is smooth seal face, middle part is connection major thread, bottom is free space.
Further, self-sealing rubber core is infundibulate.
The utility model effect, entirety is connected with wellhead blowout preventor flange by standard flange, is connected between self-styled composite member with flange cavity by major thread, and make installation quick, convenient, being specially adapted to down-hole is in the controlled snubbing serving of Room-temperature low-pressure environment.Self-sealing rubber core utilizes natural resiliency to cross box cupling, movable sealing.Structure is infundibulate, realizes well pressure and helps envelope, increases sealing.Self-styled composite member is the combination of metal and rubber, only need change rubber part, greatly reduce consuming cost after wearing and tearing.Overall lower planes is all standard flange, conveniently can connect other implement.
Accompanying drawing explanation
Fig. 1 is oil pipe self-packer structural representation;
Fig. 2 is the self-styled composite member schematic diagram of oil pipe self-packer structure;
Wherein, flange cavity 1, outer shroud 2, inner ring 3, pin 4, self-sealing rubber core 5, self-styled composite member 10.
Detailed description of the invention
Shown in Fig. 1, Fig. 2, a kind of oil pipe self-packer, comprise flange cavity 1 and self-styled composite member 10 two parts, self-styled composite member 10 is arranged in described flange cavity by major thread.Self-styled combination 10 comprises the parts such as inner ring 3, outer shroud 2, self-sealing rubber core 5, pin 4.Described self-sealing rubber core 5 is infundibulate, helps envelope for realizing well pressure.
The self-sealing rubber core 5 upper inner face of cylinder and inner ring periphery contact, and outside self-sealing rubber core 5, the face of cylinder and outer shroud inner headed face contact, and self-sealing rubber core 5 and inner ring 3, outer shroud 2 are linked into an integrated entity by pin in nail radial direction.Inner ring 3 is circular ring structure with the level, and a step cutting pattern is also arranged at self-sealing rubber core 5 top, and the step of self-sealing rubber core 5 is sandwiched between inner ring 3 step and outer shroud 2 upper surface.Outer shroud 2 is cylindrical structure, and outer shroud 3 lower outside is major thread, for being connected with flange cavity 1.
Flange cavity 1 profile is drum structure, and inside is cylindrical cavity, and the cylindrical cavity top of flange cavity 1 is smooth seal face, middle part is connection major thread, bottom is free space.Flange cavity about 1 is all standard flange structure, flange has the bolt hole of standard and the steel ring slot of standard.
The course of work, will be assembled inner ring 2, outer shroud 3, self-sealing rubber core 5 by pin 4 before using, form self-styled assembly 10.During lower oil tube, first flange cavity 1 is arranged on the flange of wellhead blowout preventor, then self-styled assembly 10 to be installed in flange cavity 1 and to screw, now self-sealing rubber core 5 completed tubing coupling by the elasticity of self, utilize the rubber part of self-sealing rubber core 5 to embrace oil pipe and achieve Seal Oil cover annular space, (sealing annular space here just refers to the space outside Sealed casing pipe inner oil tube), normal lower oil tube.
Claims (5)
1. an oil pipe self-packer, comprise flange cavity (1) and self-styled composite member (10), it is characterized in that, self-styled composite member (10) is arranged in flange cavity (1) by major thread, self-styled composite member (10) comprises inner ring (3), outer shroud (2), self-sealing rubber core (5), pin (4), self-sealing rubber core (5) the upper inner face of cylinder and inner ring (3) periphery contact, self-sealing rubber core (5) face of cylinder, outside and outer shroud (2) inner headed face contact, self-sealing rubber core (5), inner ring (3) and outer shroud (2) are linked into an integrated entity by pin (4).
2. oil pipe self-packer according to claim 1, it is characterized in that, inner ring (3) is circular ring structure with the level, a step cutting pattern is also arranged at self-sealing rubber core (5) top, and the step of self-sealing rubber core (5) is sandwiched between inner ring (3) step and outer shroud (2) upper surface.
3. oil pipe self-packer according to claim 1 and 2, is characterized in that, outer shroud (2) is cylindrical structure, and outer shroud (2) lower outside is that major thread is connected with flange cavity (1).
4. oil pipe self-packer according to claim 3, it is characterized in that, flange cavity (1) profile is drum structure, and inside is cylindrical cavity, and the cylindrical cavity top of flange cavity (1) is smooth seal face, middle part is connection major thread, bottom is free space.
5. oil pipe self-packer according to claim 1, is characterized in that, self-sealing rubber core (5) is infundibulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681535.5U CN204252915U (en) | 2014-11-12 | 2014-11-12 | A kind of oil pipe self-packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681535.5U CN204252915U (en) | 2014-11-12 | 2014-11-12 | A kind of oil pipe self-packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252915U true CN204252915U (en) | 2015-04-08 |
Family
ID=52957235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681535.5U Expired - Fee Related CN204252915U (en) | 2014-11-12 | 2014-11-12 | A kind of oil pipe self-packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252915U (en) |
-
2014
- 2014-11-12 CN CN201420681535.5U patent/CN204252915U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 |