CN205078223U - Highly deviated well packer - Google Patents
Highly deviated well packer Download PDFInfo
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- CN205078223U CN205078223U CN201520689625.3U CN201520689625U CN205078223U CN 205078223 U CN205078223 U CN 205078223U CN 201520689625 U CN201520689625 U CN 201520689625U CN 205078223 U CN205078223 U CN 205078223U
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- top connection
- righting
- packing element
- central tube
- erection device
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Abstract
The utility model relates to a highly deviated well packer. This highly deviated well packer is overlapped on the center tube between top connection and packing element and is equipped with righting device by top connection, center tube, packing element, slips assembly, friction commutator, lower joint. The beneficial effects are that: sit when sealing because the effect of righting device and slips can make its location and sleeve pipe center, packing element evenly release along the circumference to ensured to sit in the highly deviated well section many times seal, long -term effective sealed, in order to realize highly deviated well water detection, stifled water, seperated layer water injection.
Description
Technical field
The utility model relates to oil field well instrument, particularly a kind of high angle hole packer.
Background technology
Going deep into along with oil field development at present, oil-water well many employings directional well, collecting well group mode development.Conventional packer does not have righting function, under High angle hole deviation and gravitational effect effect, tubing string can be partial to the downside of sleeve pipe, packing element unbalance stress when there is packer setting, packing element shoulder stress is concentrated, sealing performance declines, affect the problems such as sealing effectiveness and shortening tubing string application life, can not meet the water detection of high angle hole, water-plugging technology requirement.
200820089878.7 disclose a kind of Self-strengthening balancing water-shutoff packer for horizontal well, adopt hydraulic setting, set rear retaining mechanism locking packing element, can only set once, be unsuitable for repeatedly setting in high angle hole section.
Utility model content
The purpose of this utility model overcomes above-mentioned technology at high angle hole section packer because Action of Gravity Field can fall to leaning against on the downside of sleeve pipe, set packing element can not circumferentially evenly discharge, can not the defect of effective sealing oil jacket annular space, there is provided a kind of to force after setting between two parties, seal high angle hole packer that is reliable, that can repeatedly set.
The utility model is made up of top connection, central tube, packing element, slips assembly, friction commutator, lower contact, and the central tube between top connection and packing element is set with erection device.
Described erection device is by supporting positive cover, steel ball forms, top connection bottom is threaded with central tube, lower end is the conical surface, supporting positive cover longitudinal section is in " recessed " font, and the tube wall at middle part is provided with at least individual radial direction through hole, is sleeved on the central tube between top connection and packing element, the diameter of through hole is slightly less than righting steel ball size, and righting steel ball is arranged between through hole and the top connection lower end conical surface.
Described erection device comprises at least three group centralizer bodies, centralizer body is made up of brace, wiper block, righting seat, wiper block upper/lower terminal has brace by hinge, its upper end brace by the lower end of hinge in top connection, its lower end brace by hinge on righting seat.
Described erection device is made up of righting arm, righting arm seat, at central tube arranged outside righting arm, righting arm is " bow " shape elastic body, and righting arm upper end is fixed in top connection, lower end is fixed on righting arm seat, and righting arm seat is connected with central tube outer wall slidingtype.
The beneficial effects of the utility model are, because the effect of erection device and slips can make it be positioned cannula center when setting, packing element circumferentially evenly discharges, thus ensure that repeatedly to set in high angle hole section, permanently effective sealing, to realize high angle hole water detection, water blockoff, seperated layer water injection.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1: overall cross-sectional schematic of the present utility model.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1, the utility model is made up of top connection 1, central tube 3, packing element 4, slips assembly 5, friction commutator 6, lower contact 7, and the central tube 3 between top connection 1 and packing element 4 is set with erection device 2.
Described erection device 2 is by top connection 1, supporting positive cover 2a, and righting steel ball 2b forms, and top connection 1 bottom is threaded with central tube 3, and lower end is the conical surface; Supporting positive cover 2a longitudinal section is in " recessed " font, and be sleeved on the central tube 3 between top connection 1 and packing element 4, the tube wall in the middle part of supporting positive cover 2a is provided with at least 3 radial direction through hole 2c, and righting steel ball 2b is arranged between through hole 2c and the top connection 1 lower end conical surface.
The utility model is gone into the well in process, steel ball 2b is received in supporting positive cover 2a, when setting, put-on and delegated tubing string, friction commutator 6 commutates, slips assembly 5 is opened and is stuck on casing wall, compression packing element 4 set packer, and the supporting positive cover 2a of packing element the promotion simultaneously and steel ball 2b be arranged in through hole 2c is up, under the effect of the top connection 1 lower end conical surface, the outside movable top of steel ball 2b is on casing wall, forces packer placed in the middle in sleeve pipe; The upper/lower terminal of packing element 4 makes it be positioned the center of sleeve pipe respectively under erection device 2 and slips assembly 5 act on, and packing element 4 circumferentially evenly discharges, and ensure that packer seals for a long time reliably in high angle hole section.During deblocking, upper lifting pipe post, top connection 1 drives on central tube 4 and moves, and erection device 2 reclaims, and packing element 3 resilience, slips 5 reclaims, removing seal for packer.
Embodiment 2: the utility model is made up of top connection 1, central tube 3, packing element 4, slips assembly 5, friction commutator 6, lower contact 7, and the central tube 3 between top connection 1 and packing element 4 is set with erection device 2.
Described erection device 2 comprises at least three group centralizer bodies, centralizer body is made up of brace, wiper block, righting seat, wiper block upper/lower terminal has brace by hinge, its upper end brace by the lower end of hinge in top connection 1, its lower end brace by hinge on righting seat.
The utility model is gone into the well in process, wiper block is in recovery state and is attached on central tube outer wall, when setting, put-on and delegated tubing string, friction commutator commutation 6, slips assembly 5 are opened and are stuck on casing wall, compression packing element 4 set packer, packing element 4 promotes righting seat ascending transmission to brace, be supported on casing wall by wiper block jack-up simultaneously, ensures that packer is placed in the middle in sleeve pipe.The upper/lower terminal of packing element 4 makes it be positioned the center of sleeve pipe respectively under erection device 2 and slips assembly 5 act on, and packing element 4 circumferentially evenly discharges, and ensure that packer seals for a long time reliably in high angle hole section.During deblocking, upper lifting pipe post, top connection 1 drives on central tube 3 and moves, and erection device 2 reclaims, and packing element 4 resilience, slips assembly 5 reclaims, removing seal for packer.
Embodiment 3: the utility model is made up of top connection 1, central tube 3, packing element 4, slips assembly 5, friction commutator 6, lower contact 7, and the central tube 3 between top connection 1 and packing element 4 is set with erection device 2.
Described erection device 2 is made up of righting arm, righting arm seat, at central tube 3 arranged outside righting arm, righting arm is " bow " shape elastic body, and righting arm upper end is fixed in top connection 1, lower end is fixed on righting arm seat, and righting arm seat is connected with central tube 3 outer wall slidingtype.
The utility model righting arm in the process of going into the well is attached on central tube 3 outer wall, down to design attitude, when setting, put-on and delegated tubing string, friction commutator 6 commutates, slips assembly 5 is opened and is stuck on casing wall, compression packing element 4 set packer, top connection 1 simultaneously extrudes righting arm and opens, and is supported on casing wall.The upper/lower terminal of packing element 4 makes it be positioned the center of sleeve pipe respectively under erection device 2 and slips assembly 5 act on, and packing element 4 circumferentially evenly discharges, and ensure that packer seals for a long time reliably in high angle hole section.During deblocking, upper lifting pipe post, top connection 1 drives on central tube 3 and moves, and erection device 2 reclaims, and packing element 4 resilience, slips assembly 5 reclaims, removing seal for packer.
Claims (4)
1. a high angle hole packer, comprise top connection (1), central tube (3), packing element (4), slips assembly (5), friction commutator (6), lower contact (7) composition, it is characterized in that: the central tube (3) between top connection (1) and packing element (4) is set with erection device (2).
2. a kind of high angle hole packer according to claim 1, it is characterized in that: erection device (2) is by top connection (1), supporting positive cover (2a), righting steel ball (2b) forms, top connection (1) bottom is threaded with central tube (3), and lower end is the conical surface; Supporting positive cover (2a) longitudinal section is in " recessed " font, be sleeved on the central tube (3) between top connection (1) and packing element (4), the tube wall at supporting positive cover (2a) middle part is provided with at least 3 radial direction through hole (2c), and righting steel ball (2b) is arranged between through hole (2c) and top connection (1) the lower end conical surface.
3. a kind of high angle hole packer according to claim 1, it is characterized in that: erection device (2) comprises at least three group centralizer bodies, centralizer body is made up of brace, wiper block, righting seat, wiper block upper/lower terminal has brace by hinge, its upper end brace by the lower end of hinge in top connection (1), its lower end brace by hinge on righting seat.
4. a kind of high angle hole packer according to claim 1, it is characterized in that: erection device (2) is made up of righting arm, righting arm seat, at central tube (3) arranged outside righting arm, righting arm is " bow " shape elastic body, righting arm upper end is fixed in top connection (1), lower end is fixed on righting arm seat, and righting arm seat is connected with central tube (3) outer wall slidingtype.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689625.3U CN205078223U (en) | 2015-09-08 | 2015-09-08 | Highly deviated well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689625.3U CN205078223U (en) | 2015-09-08 | 2015-09-08 | Highly deviated well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078223U true CN205078223U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689625.3U Active CN205078223U (en) | 2015-09-08 | 2015-09-08 | Highly deviated well packer |
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| Country | Link |
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| CN (1) | CN205078223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780876A (en) * | 2017-10-18 | 2018-03-09 | 中国石油天然气股份有限公司 | Horizontal well track type rubber sleeve packer and packing method |
| CN108301804A (en) * | 2018-04-17 | 2018-07-20 | 长江大学 | A kind of slips expanding deep water packer |
| CN113279722A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Packer for oil exploitation |
-
2015
- 2015-09-08 CN CN201520689625.3U patent/CN205078223U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780876A (en) * | 2017-10-18 | 2018-03-09 | 中国石油天然气股份有限公司 | Horizontal well track type rubber sleeve packer and packing method |
| CN108301804A (en) * | 2018-04-17 | 2018-07-20 | 长江大学 | A kind of slips expanding deep water packer |
| CN108301804B (en) * | 2018-04-17 | 2024-03-22 | 长江大学 | Slip expansion type deepwater packer |
| CN113279722A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Packer for oil exploitation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |