CN2517864Y - Hydraulic deflecting well packer - Google Patents
Hydraulic deflecting well packer Download PDFInfo
- Publication number
- CN2517864Y CN2517864Y CN 01271799 CN01271799U CN2517864Y CN 2517864 Y CN2517864 Y CN 2517864Y CN 01271799 CN01271799 CN 01271799 CN 01271799 U CN01271799 U CN 01271799U CN 2517864 Y CN2517864 Y CN 2517864Y
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- CN
- China
- Prior art keywords
- lock
- location
- sealing
- shear pin
- cylinder barrel
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model belongs to an oil recovery tool in the oil field, in particular to a hydraulic type inclined well packer which is provided with a releasing device, a sending sealing tool, a packing body, and a bidirectional anchor body, wherein, an upper connector 1 is provided with the releasing device, an external sealing cylinder tube 7 forms an inner ring cavity, a lock sleeve 5 is arranged and connected with a lock claw stopping spring 6 through a screw thread to lock an inner sealing pipe 14, and is positioned on the outer wall at the right end of the upper connector 1, and a prevention lock block 2 on the ring side at the left end of the lock sleeve 5 and a positioning shear pin 3 lock and position the upper connector 1; the sending sealing tool consists of the inner sealing pipe 14 and the external sealing cylinder tube 7, and an auxiliary piston 8 in a ring cavity is connected and positioned by a positioning shear pin 9 and an anti-soft resistance lock block 10; the packing body is sealed by an outer sealing rubber tube 11 between the right end of the external sealing cylinder tube 7 and a left cone 12; a bidirectional anchor is hung by a left cone 13, and a moveable element is formed. The utility model is suitable for oil pipe strings and acidified pipe strings for clipping and separating the upper layer of water and recovering the lower layer in an inclined well and a straight well.
Description
Technical field the utility model belongs to the oil field oil tool, particularly a kind of fluid pressure type inclined shaft packer.
Background technology is present, and the inclined shaft packing upper water technology of recovering the oil both at home and abroad is made up of mechanical ballast packer and hydraulic anchor.Overcome soft or hard resistance ability in process is gone into the well in operation, inclined shaft is difficult for the packing of rotation ballast.Hydraulic anchor is by oil pipe inner chamber pressure reduction grappling unstable working condition.The anti-operting differential pressure of packer is unreliable, and application life is short.Because hydraulic anchor anchor fluke spring failure reclaims shortcomings such as not thorough, card well fault rate height.
The summary of the invention the purpose of this utility model is to overcome above technical deficiency, provides a kind of simple to operate, and packing two-way operation pressure reduction is effective, removes thoroughly fluid pressure type inclined shaft packer reliably.
Task of the present utility model is, fluid pressure type inclined shaft packer by remover, send envelope instrument, packing body and bidirectionally anchoring body to form.Sealed tube in the remover structure is connected by lock tube, articulate outside envelope cylinder barrel, cylinder barrel articulate left cone, left cone articulate slips cover, slips cover articulate slips, in connect joint and deter lock dog, shear pin location, location is formed; Send the envelope instrument to form ring cavity by interior sealed tube and outside envelope cylinder barrel, by the auxiliary piston shear pin, anti-soft resistance lock dog connects the location in the ring cavity.The packing body by external seal cylinder barrel right-hand member articulate the external seal packing element, left cone left end is formed.
The utlity model has following characteristics: one send envelope instrument, packing body, bidirectionally anchoring body, the interlocking location, and hydraulic starting, anti-resistance ability is strong, does not have mechanical sliding phenomenon when being hampered during instrument is gone into the well on the way; Its two hydraulic pressure advances, step lock, and bidirectionally anchoring, the packing non-loosening, anti-underground work bidirectional high-pressure is poor; It proposes release on three, and classification is reclaimed, and forces to disanchor, and removes thoroughly reliable.
Description of drawings specifies with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows fluid pressure type inclined shaft packer construction figure.
Among the figure, the 1-top connection; 2-deters lock dog; 3-locatees shear pin; The 4-snap; The 5-lock tube; 6-locks pawl spring; The outside envelope of 7-cylinder barrel; The 8-auxiliary piston; 9-locatees shear pin; 10-resists soft resistance lock dog; Sealed tube side through hole in the 11-; 12-external seal packing element; 13-left side cone; Sealed tube in the 14-; 15-slips cover; The 16-slips; 17-slips spring; The right cone of 18-
The specific embodiment is with reference to accompanying drawing 1, a kind of fluid pressure type inclined shaft packer, have remover, send envelope instrument and packing body, the bidirectionally anchoring body, remover is ring cavity in top connection 1, outside envelope cylinder barrel 7 constitute, be provided with lock tube 5 sealed tube 14 in locking pawl spring 6 interlockings that is threaded, in top connection 1 right-hand member outer wall location, lock tube 5 left end ring sides deter lock dog 2, location shear pin 3 interlockings location top connection 1; Send the envelope instrument to form auxiliary piston 8 in the ring cavity by location shear pin 9 by interior sealed tube 14 and outside envelope cylinder barrel 7, anti-soft resistance lock dog 10 connects locatees; The packing body externally seals between cylinder barrel 7 right-hand members and the left cone 12 by 11 sealing-ins of external seal packing element; Bidirectionally anchoring is articulated by left cone 13, constitutes movable piece.
The fluid pressure type inclined shaft packer course of work, the interior sealed tube 14 of fluid pressure type inclined shaft packer connects oil well pump, top connection 1 connects oil pipe and goes into the well, after arriving desired location, to sending the envelope instrument to inject highly pressurised liquid, sealed tube 14 right corner side through hole 11 high pressure liquid stream enter outside envelope cylinder barrel 7 and auxiliary piston 8 inner chambers in the envelope instrument by sending, pressure promotes auxiliary piston 8 and moves to left, shear location shear pin 9, open anti-soft resistance lock dog 10, the right cavity pressure of outside envelope cylinder barrel promotes to move to right, stepping snap 3 enters duty, along with pressure constantly increases, promote packer and move to right, left cone 13 moves to right and 16 radial displacements of right cone 18 extruding slips, anchor clamp is on casing wall, and outside sealing tube 12 is adjacent to casing wall simultaneously.When pressure reached setting value, hold mode was constant under the effect of stepping snap 4, to satisfy grappling packing function, deters lock dog 2 simultaneously and is in free state, and fluid pressure type inclined shaft packer enters packing oil extraction operation state.
When needs are removed fluid pressure type inclined shaft packer, carry the oil pipe tubing string in the operation, top connection 1 moves to left and location shear pin 3 is sheared in lock tube 5 relative motions, open locking pawl spring 6, top connection 1 drives lock tube 5, outside envelope cylinder barrel 7, external seal packing element 12, left cone 13, slips cover 15, slips 17 successively and unclamps and reset, the referred ground of fluid pressure type inclined shaft packer.
Fluid pressure type inclined shaft packer technology performance indications:
Send seal pressure: 20-22MPa
Bear upper and lower pressure reduction: 30MPa
Deblocking pulling force: 60-80KN
Operating temperature :≤120 ℃
Fluid pressure type inclined shaft packer be applicable to inclined shaft, straight well card every upper water, adopt lower floor's tubing string and the acidifying tubing string uses.
Claims (1)
1, a kind of fluid pressure type inclined shaft packer has remover, send envelope instrument and packing body, the bidirectionally anchoring body, it is characterized in that:
A. remover ring cavity in top connection (1), outside envelope cylinder barrel (7) constitute, be provided with lock tube (5) sealed tube (14) in locking pawl spring (6) interlocking that is threaded, in top connection (1) right-hand member outer wall location, lock tube (5) left end ring side deters lock dog (2), location shear pin (3) interlocking location top connection (1);
B. send the envelope instrument to form the interior auxiliary piston (8) of ring cavity by location shear pin (9) by interior sealed tube (14) and outside envelope cylinder barrel (7), anti-soft resistance lock dog (10) connects the location;
C. the packing body externally seals between cylinder barrel (7) right-hand member and the left cone (12) by external seal packing element (11) sealing-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271799 CN2517864Y (en) | 2001-11-27 | 2001-11-27 | Hydraulic deflecting well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271799 CN2517864Y (en) | 2001-11-27 | 2001-11-27 | Hydraulic deflecting well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517864Y true CN2517864Y (en) | 2002-10-23 |
Family
ID=33677147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01271799 Expired - Lifetime CN2517864Y (en) | 2001-11-27 | 2001-11-27 | Hydraulic deflecting well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517864Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015911A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Articulated oil tube tie-back sealing device |
| CN115234192A (en) * | 2022-08-29 | 2022-10-25 | 承德石油高等专科学校 | Flexible packer suitable for directional well |
-
2001
- 2001-11-27 CN CN 01271799 patent/CN2517864Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015911A (en) * | 2012-11-29 | 2013-04-03 | 中国石油集团长城钻探工程有限公司 | Articulated oil tube tie-back sealing device |
| CN115234192A (en) * | 2022-08-29 | 2022-10-25 | 承德石油高等专科学校 | Flexible packer suitable for directional well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111127 Granted publication date: 20021023 |