CN2648053Y - Compression type sealer capable of flushing well - Google Patents
Compression type sealer capable of flushing well Download PDFInfo
- Publication number
- CN2648053Y CN2648053Y CN 03205777 CN03205777U CN2648053Y CN 2648053 Y CN2648053 Y CN 2648053Y CN 03205777 CN03205777 CN 03205777 CN 03205777 U CN03205777 U CN 03205777U CN 2648053 Y CN2648053 Y CN 2648053Y
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- Prior art keywords
- central tube
- piston
- setting
- utility
- model
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Abstract
The utility model discloses a compression washable well packer, the utility model includes an upper connector, a center pipe, an external center pipe, a spacer ring, a sealing rubber cylinder, a lower connector and so on. the utility model is characterized in that: a pressure transmitting piston, a well washing piston and a bearing nipple are arranged above the external center pipe and in the upper connector; the lower part of the sealing rubber cylinder is sleeved with a setting connector; the lower part of the setting connector is provided with a retaining ring hanger; the lower part of the retaining ring hanger is provided with an unsealing pin, a pin base, a locking ring and a standby cap; the outside of the retaining ring hanger is sleeved with a working barrel; the lower part of the working barrel is contacted with a setting piston. The utility model has simple structure, firm setting, good sealing effect and long service life.
Description
One, technical field: the utility model relates to a kind of packer, particularly a kind of compression washing well packer.
Two, background technology: at present, what generally use in the technology such as each separated-zone water infection oil field at home is the washing well packer of well-flushing passage to be arranged and repeat two kinds of packers of set packer, these two kinds of packers are owing to sealing part abrasion, well head pressure fluctuation and structural limitations can't form reasons such as pressure reduction, exist the shortcoming that sealing effectiveness is poor, cause packer to lose efficacy, thereby influence the seperated layer water injection effect.
Three, summary of the invention: the purpose of this utility model just is to provide a kind of packer of good sealing effect---compression washing well packer.Technical solution of the present utility model is: described compression washing well packer includes top connection, central tube, exterior central tube, spacer ring, cartridge and lower contact etc., is provided with pressure transmission piston, well-flushing piston and supporting pipe nipple above exterior central tube, in the top connection; Below cartridge, be set with the joint that sets that is connected with exterior central tube, be provided with the snap ring that is connected with central tube in the bottom that sets joint and hang, below the snap ring extension, be provided with deblocking pin, dowel bushing, retaining ring and be equipped with cap; Be set with seating nipple outside snap ring is hung, seating nipple bottom the set piston interior with being encapsulated in lower contact contacts.Snap ring is hung by setting pin and setting joint and be connected.The utility model is simple in structure, and is with low cost, has to set firm, good sealing effect, well-flushing convenience, long service life, be convenient to advantages such as maintenance, guaranteed the effect of seperated layer water injection.
Four, description of drawings: Fig. 1 is that the utility model embodiment master TV structure partly cuts open schematic diagram.
Five, the specific embodiment: with reference to accompanying drawing, the utility model mainly includes top connection 1, central tube 18, exterior central tube 5, spacer ring 6, cartridge 7 and lower contact 17 etc., offer upper and lower pressure transmission hole 19 and 20 on the central tube 18, central tube 18 is connected with lower contact 17 with top connection 1 respectively by screw thread, is provided with pressure transmission piston 2, well-flushing piston 3 and supporting pipe nipple 4 above exterior central tube 5, in the top connection 1; Below cartridge 7, be set be connected with exterior central tube 5 set joint 8, be provided with in the bottom that sets joint 8 with central tube 18 and adopt the snap ring of screwed connections to hang 10, snap ring hangs 10 by setting pin 9 and setting joint 8 and be connected.Below snap ring extension 10, be provided with deblocking pin 11, dowel bushing 14, retaining ring 12 and be equipped with cap 13; Hang 10 at snap ring and be set with seating nipple 15 outward, seating nipple 15 is provided with the card tooth, and seating nipple 15 bottoms the set piston 16 interior with being encapsulated in lower contact 17 contacts.
Operating principle of the present utility model is: when setting, the well head water injection pressure on the one hand the last pressure transmission hole 19 by central tube 18 to act on the pressure transmission piston 2 promotion well-flushing piston 3 descending, make it inclined-plane sealing with exterior central tube 5, block the well-flushing passage: the following pressure transmission hole 20 by central tube 18 acts on to set on the piston 16 and makes it up on the other hand, the tube 15 that pushes the work forward is cut off and is set pin 9 up compression seal packing elements 7, when being up to certain stroke, card tooth on the seating nipple 15 hangs tag on retaining ring 12, and cartridge 7 is in and the ferrule sleeve sealing state all the time.During deblocking, on carry packer, deblocking pin 11 is sheared, and cuts off deblocking pin 11 when power acquires a certain degree, set that joint 8, seating nipple 15 drives retaining rings 12, dowel bushing 14 is descending this moment under the effect of cartridge 7 reseting elasticities, make the packer deblocking.
Claims (2)
1, a kind of compression washing well packer, it includes top connection (1), central tube (18), exterior central tube (5), spacer ring (6), cartridge (7) and lower contact (17) etc., it is characterized in that being provided with in the top, top connection (1) in exterior central tube (5) pressure transmission piston (2), well-flushing piston (3) and supporting pipe nipple (4); Be set with in the below of cartridge (7) be connected with exterior central tube (5) set joint (8), be provided with the snap ring that is connected with central tube (18) in the bottom that sets joint (8) and hang (10), the below that hangs (10) at snap ring is provided with deblocking pin (11), dowel bushing (14), retaining ring (12) and is equipped with cap (13); Be set with seating nipple (15) outside snap ring is hung (10), seating nipple (15) bottom the set piston (16) interior with being encapsulated in lower contact (17) contacts.
2, compression washing well packer as claimed in claim 1 is characterized in that snap ring hangs (10) by setting pin (9) and setting joint (8) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205777 CN2648053Y (en) | 2003-08-16 | 2003-08-16 | Compression type sealer capable of flushing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205777 CN2648053Y (en) | 2003-08-16 | 2003-08-16 | Compression type sealer capable of flushing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648053Y true CN2648053Y (en) | 2004-10-13 |
Family
ID=34324348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03205777 Expired - Fee Related CN2648053Y (en) | 2003-08-16 | 2003-08-16 | Compression type sealer capable of flushing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648053Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498204B (en) * | 2009-02-25 | 2012-02-29 | 大庆油田有限责任公司 | Balance type step-by-step releasable flushing packer |
-
2003
- 2003-08-16 CN CN 03205777 patent/CN2648053Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498204B (en) * | 2009-02-25 | 2012-02-29 | 大庆油田有限责任公司 | Balance type step-by-step releasable flushing packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |