CN201358747Y - Small diameter hydraulic packer - Google Patents
Small diameter hydraulic packer Download PDFInfo
- Publication number
- CN201358747Y CN201358747Y CNU2009200360919U CN200920036091U CN201358747Y CN 201358747 Y CN201358747 Y CN 201358747Y CN U2009200360919 U CNU2009200360919 U CN U2009200360919U CN 200920036091 U CN200920036091 U CN 200920036091U CN 201358747 Y CN201358747 Y CN 201358747Y
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- Prior art keywords
- piston
- grades
- tube connector
- packing element
- tube
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- Expired - Fee Related
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Abstract
The utility model provides a small diameter hydraumatic packer. A rubber cylinder set is sleeved on a rubber cylinder shaft; the lower part of the rubber cylinder shaft is connected with the upper part of a primary connecting pipe; threads at the lower part of the primary connecting pipe are connected with the upper part of a secondary connecting pipe; threads at the lower part of the secondary connecting pipe are connected with the upper part of a tertiary connecting pipe; a primary communication pore is formed above the connecting threads at the lower part of the rubber cylinder shaft; a secondary communication pore is formed above the connecting threads at the lower part of the primary connecting pipe; a tertiary communication pore is formed above the connecting threads at the lower part of the secondary connecting pipe; the seat of the rubber cylinder set is arranged on a primary piston which is hung on the primary connecting pipe; a secondary piston is hung on the secondary connecting pipe; a tertiary piston is hung on the tertiary connecting pipe; the primary piston, the secondary piston and the tertiary piston are connected in sequence; the tertiary piston is fixed on the tertiary connecting pipe through a seat sealing shear pin; an unlocking sleeve is fixed on the primary connecting pipe through a pin; a lock sleeve is sleeved outside the unlocking sleeve; and the resultant force of the three pistons drives the rubber cylinder set to seal a sleeve. Therefore, the diameter of the packer can be shrunken, and the packer can be used on a cased well.
Description
Technical field:
The utility model is the packer that oilfield oil well minor diameter cased well is used, and is a kind of minor diameter hydraulic packer.
Background technology:
Oilfield oil well deforms through the casing that has after producing for a long time, in order to continue to use, these casing deformation wells has been carried out shaping, as sidetracking, casing patching, through after the shaping, casing inner diameter diminishes, and packer commonly used can not use, need be with the reduced diameter of packer, but for hydraulic packer, can make fluid power promote piston area after the diameter reduction and reduce, motive force reduces, do not reach the thrust of packing element expansion seat envelope, cause the hydraulic packer that dwindles by size not use.
Summary of the invention:
The purpose of this utility model is a kind of minor diameter hydraulic packer of design, is used for the seal exploitation of minor diameter cased wells such as sidetracked hole, casing patching well.
The purpose of this utility model is achieved in that by the packing element axle, the packing element group, the one-level tube connector, first stage piston, lock tube, separate lock tube, second piston, the secondary tube connector, three grades of pistons, three grades of tube connectors, seat envelope shear pin is formed, the packing element group is sleeved on the packing element axle, packing element axle bottom is threaded with one-level tube connector top, one-level tube connector lower thread is threaded with secondary tube connector top, secondary tube connector lower thread is threaded with three grades of tube connector tops, on the connecting thread of packing element axle bottom, the one-level linked hole is arranged, on one-level tube connector lower thread, the secondary linked hole is arranged, three grades of linked holes are arranged on secondary tube connector lower thread, packing element group seat is on first stage piston, first stage piston is suspended on the one-level tube connector, second piston is suspended on the secondary tube connector, three grades of pistons are suspended on three grades of tube connectors, first stage piston, second piston, three grades of pistons connect successively, three grades of pistons are fixed on three grades of tube connectors by seat envelope shear pin, the little inner hole wall in first stage piston top cooperates with packing element axle outer wall, there is sealing ring the cooperation place, the big inner hole wall of first stage piston cooperates with one-level tube connector external wall of upper portion, there is sealing ring the cooperation place, the little inner hole wall in second piston top cooperates with one-level tube connector bottom outer wall, there is sealing ring the cooperation place, the big inner hole wall of second piston cooperates with secondary tube connector external wall of upper portion, there is sealing ring the cooperation place, three grades of little inner hole walls in piston top cooperate with secondary tube connector bottom outer wall, there is sealing ring the cooperation place, three grades of big inner hole walls of piston cooperate with three grades of tube connector external wall of upper portion, there is sealing ring the cooperation place, separate lock tube by dowel fixes on the one-level tube connector, lock tube is sleeved on to be separated outside the lock tube, the lock tube outer wall has unidirectional outer teeth, and second piston top endoporus has unidirectional interior teeth.
The packing element group is made up of three packing elements, and spacer ring is arranged between the packing element.
The beneficial effects of the utility model are: three grades of piston series connection are arranged, three grades of pistons can both produce thrust, three grades of pistons all promote the packing element group with joint efforts, three grades of pistons produce push away the train chief can the compand packing element, make packing element group Sealed casing pipe, therefore, diameter of the present utility model can dwindle, can on minor diameter cased wells such as sidetracked hole, casing patching well, use, make minor diameter cased wells energy real and oil production by layer and seperated layer water injections such as sidetracked hole, casing patching well, have remarkable economic efficiency.
Description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
By packing element axle 1, packing element group 2, one-level tube connector 3, first stage piston 4, lock tube 5, separate lock tube 6, second piston 7, secondary tube connector 8, three grades of pistons 9, three grades of tube connectors 10, seat envelope shear pin 11 is formed, packing element group 2 is sleeved on the packing element axle 1, packing element axle 1 bottom is threaded with one-level tube connector 3 tops, one-level tube connector 3 lower thread are threaded with secondary tube connector 8 tops, secondary tube connector 8 lower thread are threaded with three grades of tube connector 10 tops, on packing element axle 1 bottom connecting thread, one-level linked hole 12 is arranged, on one-level tube connector 3 lower thread, secondary linked hole 15 is arranged, three grades of linked holes 16 are arranged on secondary tube connector 8 lower thread, 2 of packing element groups are on first stage piston 4, first stage piston 4 is suspended on the one-level tube connector 3, second piston 7 is suspended on the secondary tube connector 8, three grades of pistons 9 are suspended on three grades of tube connectors 10, first stage piston 4, second piston 7, three grades of pistons 9 connect successively, three grades of pistons 9 are fixed on three grades of tube connectors 10 by seat envelope shear pin 11, the little inner hole wall in first stage piston 4 tops cooperates with packing element axle 1 outer wall, there is sealing ring the cooperation place, first stage piston 4 big inner hole walls cooperate with one-level tube connector 3 external wall of upper portion, there is sealing ring the cooperation place, the little inner hole wall in second piston 7 tops cooperates with one-level tube connector 3 bottom outer walls, there is sealing ring the cooperation place, second piston 7 big inner hole walls cooperate with secondary tube connector 8 external wall of upper portion, there is sealing ring the cooperation place, three grades of little inner hole walls in piston 9 tops cooperate with secondary tube connector 3 bottom outer walls, there is sealing ring the cooperation place, three grades of piston 9 big inner hole walls cooperate with three grades of tube connector 10 external wall of upper portion, there is sealing ring the cooperation place, separate lock tube 6 by dowel fixes on one-level tube connector 3, lock tube 5 is sleeved on to be separated outside the lock tube 6, lock tube 5 outer walls have unidirectional outer teeth 13, and second piston 7 top endoporus have unidirectional interior teeth 14.Packing element group 2 is made up of three packing elements, and spacer ring is arranged between the packing element.Lock tube 5 is the opening lock ring.
During use, with minor diameter tubing down to needs layering position, in oil pipe, suppress, pressure is through one-level linked hole 12, secondary linked hole 15, three grades of linked holes 16 reach first stage piston 4, second piston 7, in three grades of pistons 9, the upwards thrust that produces is cut off an envelope shear pin 11, first stage piston 4, second piston 7, three grades of pistons 9 upwards promote packing element simultaneously, make packing element compand sealing Casing Failure, first stage piston 4, second piston 7, three grades of 9 whiles of piston are when up, the unidirectional interior teeth 14 of second piston 7 top endoporus interlock with the unidirectional outer teeth 13 on lock tube 5 outer walls, after pressure disappeared, packing element was compressed expansion sealing Casing Failure all the time.
During deblocking, on carry oil pipe, it is up to separate lock tube 6, under conical surface effect will, lock tube 5 struts, and lock tube 5 and second piston 7 are thrown off, first stage piston 4, second piston 7, three grades of pistons 9 are up, packing element restores to the original state and finishes the deblocking of packer.
Claims (2)
1, a kind of minor diameter hydraulic packer, by packing element axle (1), packing element group (2), one-level tube connector (3), first stage piston (4), lock tube (5), separate lock tube (6), second piston (7), secondary tube connector (8), three grades of pistons (9), three grades of tube connectors (10), seat envelope shear pin (11) is formed, it is characterized in that: packing element group (2) is sleeved on the packing element axle (1), packing element axle (1) bottom is threaded with one-level tube connector (3) top, one-level tube connector (3) lower thread is threaded with secondary tube connector (8) top, secondary tube connector (8) lower thread is threaded with three grades of tube connectors (10) top, on the connecting thread of packing element axle (1) bottom, one-level linked hole (12) is arranged, on one-level tube connector (3) lower thread, secondary linked hole (15) is arranged, on secondary tube connector (8) lower thread, three grades of linked holes (16) are arranged, packing element group (2) seat is on first stage piston (4), first stage piston (4) is suspended on the one-level tube connector (3), second piston (7) is suspended on the secondary tube connector (8), three grades of pistons (9) are suspended on three grades of tube connectors (10), first stage piston (4), second piston (7), three grades of pistons (9) connect successively, three grades of pistons (9) are fixed on three grades of tube connectors (10) by seat envelope shear pin (11), the little inner hole wall in first stage piston (4) top cooperates with packing element axle (1) outer wall, there is sealing ring the cooperation place, the big inner hole wall of first stage piston (4) cooperates with one-level tube connector (3) external wall of upper portion, there is sealing ring the cooperation place, the little inner hole wall in second piston (7) top cooperates with one-level tube connector (3) bottom outer wall, there is sealing ring the cooperation place, the big inner hole wall of second piston (7) cooperates with secondary tube connector (8) external wall of upper portion, there is sealing ring the cooperation place, the little inner hole wall in three grades of pistons (9) top cooperates with secondary tube connector (3) bottom outer wall, there is sealing ring the cooperation place, the big inner hole wall of three grades of pistons (9) cooperates with three grades of tube connectors (10) external wall of upper portion, there is sealing ring the cooperation place, separate lock tube (6) by dowel fixes on one-level tube connector (3), lock tube (5) is sleeved on to be separated outside the lock tube (6), lock tube (5) outer wall has unidirectional outer teeth (13), and second piston (7) top endoporus has unidirectional interior teeth (14).
2, minor diameter hydraulic packer according to claim 1 is characterized in that: packing element group (2) is made up of three packing elements, and spacer ring is arranged between the packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360919U CN201358747Y (en) | 2009-03-12 | 2009-03-12 | Small diameter hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360919U CN201358747Y (en) | 2009-03-12 | 2009-03-12 | Small diameter hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358747Y true CN201358747Y (en) | 2009-12-09 |
Family
ID=41424509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200360919U Expired - Fee Related CN201358747Y (en) | 2009-03-12 | 2009-03-12 | Small diameter hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358747Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291264A (en) * | 2013-05-28 | 2013-09-11 | 西南石油大学 | Safety stripping device of in-well pipe string |
| CN109139601A (en) * | 2018-08-23 | 2019-01-04 | 金湖县支点石油科技有限责任公司 | A kind of design method of the infinitely multistage fluid power piston of same central tube |
-
2009
- 2009-03-12 CN CNU2009200360919U patent/CN201358747Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291264A (en) * | 2013-05-28 | 2013-09-11 | 西南石油大学 | Safety stripping device of in-well pipe string |
| CN103291264B (en) * | 2013-05-28 | 2015-08-05 | 西南石油大学 | Tubing string safety trip device in a kind of well |
| CN109139601A (en) * | 2018-08-23 | 2019-01-04 | 金湖县支点石油科技有限责任公司 | A kind of design method of the infinitely multistage fluid power piston of same central tube |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20100312 |