CN204283317U - A kind of ocean deepwater well tubing packer - Google Patents
A kind of ocean deepwater well tubing packer Download PDFInfo
- Publication number
- CN204283317U CN204283317U CN201420737551.1U CN201420737551U CN204283317U CN 204283317 U CN204283317 U CN 204283317U CN 201420737551 U CN201420737551 U CN 201420737551U CN 204283317 U CN204283317 U CN 204283317U
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- China
- Prior art keywords
- wall
- setting
- slips
- supervisor
- interior pipe
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Abstract
The utility model discloses a kind of ocean deepwater well tubing packer, comprises supervisor, the outer wall of described supervisor connects block; The outer wall of described supervisor is arranged with central tube; The outer wall on described central tube top is arranged with slips cover, slips and hypocentrum; The outer wall of described central tube bottom is arranged with packing element, setting cover, lock ring and setting outer tube from top to bottom successively; The end of described central tube is connected with interior pipe, and the bottom of described setting outer tube is also enclosed within the outer wall of interior pipe; The lower end of described interior pipe is connected with lower contact, and described lower contact is on the outer wall of the end of described supervisor, and the outer wall of described lower contact is arranged with elastic card claw.This packer use mechanical setting mode, avoid the kill-job of hydraulic base sealed formula tubing packer setting time, oil reservoir is polluted.Application the utility model directly in oil pipe under enter packer, temporary transient shutoff is carried out to oil reservoir, avoids the potential safety hazard that Operating Pressure is brought.
Description
Technical field
The utility model belongs to completion tool field in ocean deepwater well development, is specifically related to a kind of ocean deepwater well tubing packer.
Background technology
Relatively with conventional well operation, it is high that ocean deepwater Oil/gas Well has down-hole pressure, and stratum protection requirement is high, the feature that environmental requirement is high.Remove in flow string process, tubing packer during Operating Pressure, need be used to carry out temporary transient shutoff to oil pipe; Big orifice tubing packer need be used when crossing oil pipe suspension completion tool.
At present in the tubing packer of down-hole use, the following shortcoming of ubiquity:
1, mechanical packer can only be setting in the position limited;
2, hydraulic pressure ball-throwing type packer can in tubing string any section setting, but when down-hole pressure is too high, suppresses setting after needing kill job again, easily oil reservoir polluted;
3, tubing packer latus rectum is less, for later stage operation brings difficulty.
Therefore, need a kind of novel tubing packer of research and development to overcome existing shortcoming, meet the needs of oil development.
Utility model content
The utility model provides a kind of ocean deepwater well tubing packer, to solve the ubiquitous defect of current tubing packer.
The utility model provides a kind of ocean deepwater well tubing packer, comprises supervisor, the outer wall of described supervisor connects block, and the outer wall of described supervisor is also arranged with central tube; The outer wall on described central tube top is arranged with slips cover, slips and hypocentrum, and described slips is arranged at the inside of slips cover, and described hypocentrum is arranged at the below of slips; The outer wall of described central tube bottom is arranged with packing element, setting cover, lock ring and setting outer tube from top to bottom successively; The end of described central tube is connected with interior pipe, and the bottom of described setting outer tube is also sheathed on the outer wall of described interior pipe; The bottom of described interior pipe connects lower contact, and described lower contact is on the outer wall of the end of described supervisor, and the outer wall of described lower contact is also arranged with elastic card claw.
The inwall on described supervisor top is provided with internal thread, and the below of described internal thread has the inwall of cone structure, and the inwall of described cone structure is provided with steam vent; The bottom of described supervisor is radially provided with two for connecting the pin hole of block; On described interior pipe, the position of corresponding described block is provided with and slides hole.
Described slips inside is provided with spring.
The outer wall of described hypocentrum is also arranged with the collar, and the described collar is between described slips cover and hypocentrum, is threaded connection between the described collar and slips cover.
Described setting outer tube is located on the bottom outer wall of setting cover and the outer wall of lock ring; Be threaded by unidirectional between described lock ring and the outer wall of described central tube.
The inwall of described setting outer tube has protruding step.
The wall body of described setting outer tube below the step of projection is set on the outer wall of described interior pipe, and is tightly connected between described setting outer tube and described interior pipe.
Be threaded connection between described interior pipe and described lower contact and seal.
The bottom of described lower contact has boss and groove.
The advantage that the utility model has is:
1. direct in oil pipe under enter packer shutoff carried out to oil pipe, avoid the potential safety hazard that Operating Pressure is brought.
2. this packer uses mechanical setting mode, when avoiding the kill-job of hydraulic base sealed formula tubing packer setting, pollutes oil reservoir.
3. can become large position in tubing coupling position or tubing string internal diameter realizes setting.
4. this tubing packer has high voltage performance, and can prevent setting in advance in decentralization process.
5. the utility model is a kind of brand-new tubing packer, and latus rectum more greatly later stage underground work provides advantage.
Accompanying drawing explanation
Fig. 1 be according to the ocean deepwater well coiled tubing packer set of utility model embodiment before half section structural representation;
Fig. 2 is the sectional structure schematic diagram of the inner pipe passway according to utility model embodiment;
Accompanying drawing shows to illustrate:
1. be responsible for; 2. central tube; 3. slips cover; 4. slips; 5. spring; 6. hypocentrum; 7. the collar; 8. packing element; 9. setting cover; 10. lock ring; 11. setting outer tubes; Pipe in 12.; 13. blocks; 14. pins; 15. lower contacts; 16. elastic card claws; 17. sealing rings.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
The utility model provides a kind of ocean deepwater well tubing packer, as depicted in figs. 1 and 2, comprising: supervisor 1, central tube 2, slips cover 3, slips 4, spring 5, hypocentrum 6, the collar 7, packing element 8, setting cover 9, lock ring 10, setting outer tube 11, interior pipe 12, block 13, pin 14, lower contact 15, elastic card claw 16 and sealing ring 17.
Described supervisor 1 top is provided with internal thread, for connecting lower drain line; The inside of described supervisor 1 has the inwall of cone structure in the below of internal thread, the inwall of described cone structure is drilled with a steam vent, for exhaust.The central axis that the bottom of described supervisor 1 is radially drilled with two 3mm-mm left and right pins nail, 14, two pin holes 14 supervisor 1 is relatively symmetrical, on the outer wall in described supervisor 1, connect block 13.
Described central tube 2 is inserted in from supervisor 1 lower end, is in the outside on the upper side section of the middle part of described supervisor 1.The outer wall on described central tube 2 top is arranged with slips 4, and the below of described slips is provided with hypocentrum 6, and described slips 4 is located at the inside of slips cover, and namely upper and lower end parts is arranged with slips cover 3, and the inside of described each slips 4 has all installed upper and lower two springs 5.The outer wall of described hypocentrum 6 is also arranged with the collar 7, and the described collar 7 is between described hypocentrum 6 and described slips cover 3, and the described collar 7 is threaded with between slips cover 3, for fixing hypocentrum 6.The outer wall of described central tube 2 bottom is arranged with packing element 8, setting cover 9, lock ring 10 and setting outer tube 11 from top to bottom successively.Wherein, described lock ring 10 is arranged on the lower end of setting cover 9, and setting outer tube 11 is arranged on the outer wall of setting cover 9 bottom outer wall and lock ring 10, is threaded between lock ring 10 and the outer wall of central tube 2 by unidirectional, and then lock ring 10 can only be moved up, the downward movement of setting cover 9 can be limited.The inwall of described setting outer tube 11 has protruding step, for transmitting the up thrust of block 13.The end of described central tube 2 is threaded connection with described interior pipe 12 and seals together with being provided therebetween.The step hypomere wall body of described setting outer tube 11 is enclosed within the outer wall of interior pipe 12, the lower inner wall of outer tube 11 has two seals circle and interior pipe 12 seal, and interior pipe 12 external wall of upper portion has two seals circle and outer tube 11 to seal.
As shown in Figure 2, on described interior pipe 12 tube wall the position of corresponding block 13 be provided with two run through completely slide hole, internally the central axis of pipe 12 is symmetrical mutually for the two, can slide up and down for block 13.Described interior pipe 12 lower end is threaded with lower contact 15 and sealing ring 17 seals together with being provided therebetween, described lower contact 15 is on the outer wall of the end of described supervisor 1, the outer wall of lower contact 15 is arranged with elastic card claw 16, matched in clearance between the two, and then elastic card claw 16 can be made to slidably reciprocate, the bottom of described lower contact 15 has boss, elastic card claw 16 can be propped up move down, and be milled with groove, groove coordinates with the claw convex place of elastic card claw 16 foot, shrinks and pass through oil pipe when transferring for elastic card claw 16.Lower contact 15 is provided with internal thread for being affiliated to lower tubular column.
Its course of work of ocean deepwater well tubing packer that the utility model provides is as follows: the tubing packer provided by the utility model is lowered into design attitude, and before namely setting, described elastic card claw 16 end is stuck in big orifice space, then carries out setting.Specifically first carry on tubing string, because block 13 is fixed on supervisor 1 lower end by pin 14, block 13 withstands on setting outer tube 11 raised step place, so tubing string drives on setting outer tube 11 sliding.Setting outer tube 11 just promotes lock ring 10, setting cover 9 move, and therefore the stressed promotion hypocentrum 6 of packing element 8 moves, slips 4 flicks and is stuck on tubing wall under the effect of hypocentrum 6, and continue upper lifting pipe post, packing element 8 pressurized distending packing space, realizes setting.Now lock ring 10 is stuck on the unidirectional screw thread of central tube 2, can not be descending, prevents deblocking.Continuation is carried supervisor 1, when reaching the shearing force of pin 14, cut off pin, propose supervisor 1, complete whole setting task.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (9)
1. an ocean deepwater well tubing packer, is characterized in that, comprises supervisor, and the outer wall of described supervisor connects block, and the outer wall of described supervisor is also arranged with central tube; The outer wall on described central tube top is arranged with slips cover, slips and hypocentrum, and described slips is arranged at the inside of slips cover, and described hypocentrum is arranged at the below of slips; The outer wall of described central tube bottom is arranged with packing element, setting cover, lock ring and setting outer tube from top to bottom successively; The end of described central tube is connected with interior pipe, and the bottom of described setting outer tube is also sheathed on the outer wall of described interior pipe; The bottom of described interior pipe connects lower contact, and described lower contact is on the outer wall of the end of described supervisor, and the outer wall of described lower contact is also arranged with elastic card claw.
2. ocean deepwater well tubing packer according to claim 1, is characterized in that, the inwall on described supervisor top is provided with internal thread, and the below of described internal thread has the inwall of cone structure, and the inwall of described cone structure is provided with steam vent; The bottom of described supervisor is radially provided with two for connecting the pin hole of block; On described interior pipe, the position of corresponding described block is provided with and slides hole.
3. ocean deepwater well tubing packer according to claim 1, is characterized in that, described slips inside is provided with spring.
4. ocean deepwater well tubing packer according to claim 1, is characterized in that, the outer wall of described hypocentrum is also arranged with the collar, and the described collar is between described slips cover and hypocentrum, is threaded connection between the described collar and slips cover.
5. ocean deepwater well tubing packer according to claim 1, is characterized in that, described setting outer tube is located on the bottom outer wall of setting cover and the outer wall of lock ring; Be threaded by unidirectional between described lock ring and the outer wall of described central tube.
6. ocean deepwater well tubing packer according to claim 1, is characterized in that, the inwall of described setting outer tube has protruding step.
7. ocean deepwater well tubing packer according to claim 6, is characterized in that, the wall body of described setting outer tube below the step of projection is set on the outer wall of described interior pipe, and is tightly connected between described setting outer tube and described interior pipe.
8. ocean deepwater well tubing packer according to claim 1, is characterized in that, is threaded connection and seals between described interior pipe and described lower contact.
9. ocean deepwater well tubing packer according to claim 1, is characterized in that, the bottom of described lower contact has boss and groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737551.1U CN204283317U (en) | 2014-12-01 | 2014-12-01 | A kind of ocean deepwater well tubing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737551.1U CN204283317U (en) | 2014-12-01 | 2014-12-01 | A kind of ocean deepwater well tubing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283317U true CN204283317U (en) | 2015-04-22 |
Family
ID=52866492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420737551.1U Expired - Fee Related CN204283317U (en) | 2014-12-01 | 2014-12-01 | A kind of ocean deepwater well tubing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405331A (en) * | 2014-12-01 | 2015-03-11 | 东营市福利德石油科技开发有限责任公司 | Ocean deep well tubing packer |
-
2014
- 2014-12-01 CN CN201420737551.1U patent/CN204283317U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405331A (en) * | 2014-12-01 | 2015-03-11 | 东营市福利德石油科技开发有限责任公司 | Ocean deep well tubing packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |