CN2434428Y - Hydraulic power expansion packer - Google Patents
Hydraulic power expansion packer Download PDFInfo
- Publication number
- CN2434428Y CN2434428Y CN 00208834 CN00208834U CN2434428Y CN 2434428 Y CN2434428 Y CN 2434428Y CN 00208834 CN00208834 CN 00208834 CN 00208834 U CN00208834 U CN 00208834U CN 2434428 Y CN2434428 Y CN 2434428Y
- Authority
- CN
- China
- Prior art keywords
- packing element
- packer
- utility
- model
- central tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model relates to a hydraulic power expansion packer. The utility model is characterized in that both ends of an elastic rubber cylinder 5 are respectively clamped in alignment and are sulfurized on a center pipe 4 by a semi-T-shaped rubber cylinder seat 3, and a kerf 6 is arranged at a middle point of the rubber cylinder 5 which is corresponding to the center pipe 4. The problems that the packer has low bearing and the unsealing is inexhaustive are solved. The utility model has the advantages of simple structure, high bearing pressure and good sealing (unsealing) effect.
Description
The utility model relates to the packer that a kind of oilfield downhole operation is used, and belongs to hydraulic expansion formula packer.
At present, when the pressure break of down-hole, oil field, acidizing treatment, use packer to realize setting and deblocking.When setting, hydraulic pressure acts on through screen cover that the inner chamber of packing element realizes.Sometimes, the filter screen in the screen cover is easily breakdown, and foreign material such as sand have the possibility that enters the packing element inner chamber, and it is not thorough to cause deblocking to shrink.Moreover touch with central tube mutually by the sulfuration head at the packing element two ends, makes the packing element two ends thinner relatively, and pressure-bearing is low.Complex structure, the cost height.
The purpose of this utility model is to avoid the deficiency of above-mentioned technology, and a kind of simple in structure, hydraulic expansion formula packer that pressure-bearing is high is provided.
The purpose of this utility model can reach by the following technical programs: this packer is made up of box cupling, glue tube base, central tube, packing element, elasticity packing element two ends are aligned by " " type glue tube base respectively and block sulfuration on central tube, and there is slot at corresponding central tube place in the middle of the packing element.
The utility model has following advantage than above-mentioned prior art: because directly vulcanize to central tube at the two ends of packing element, saved the sulfuration head, made the packing element two ends thicker relatively, pressure-bearing is higher; Hydraulic pressure acts on the inner chamber of packing element by the slot of central tube, and it is effective to set, connect envelope, thoroughly; And simple in structure, cost is low.
Accompanying drawing 1 is that structure of the present utility model is cutd open figure.
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, this packer is made up of box cupling 1, glue tube base 3, central tube 4, packing element 5, box cupling 1 central tube 4 that is threaded, resilient packing element 5 two ends are aligned by " " type glue tube base 3 respectively and block, and directly sulfuration has saved original sulfuration head on central tube 4, make that packing element 5 two ends are thicker relatively, the more original packer height of pressure-bearing, and an end of glue tube base 3 is by O shape circle 2 and central tube 4 sealings, unlikely pressure release; Moreover there is slot 6 at corresponding central tubes 4 places in the middle of the packing element 5, make hydraulic pressure directly act on the packing element 5 from slot 6, set effectively, are not easy to make foreign material such as sand to enter in the packing element 5, and deblocking is thorough.As seen, this packer has saved some parts than original packer, makes simple in structurely, and effect is remarkable, and cost reduces greatly.
During actual the use, with this packer in company with tubing string go into the well put in place after, add hydraulic pressure from oil pipe, the slot 6 of highly pressurised liquid on central tube 4 acts on the inner chamber of packing element 5, makes its expansion and sets; When needing deblocking, bleed off the pressure in the oil pipe, packing element 5 shrinks, the packer deblocking, and effect is remarkable.
Claims (1)
1, a kind of hydraulic expansion formula packer, form by box cupling (1), glue tube base (3), central tube (4), packing element (5), it is characterized in that: elasticity packing element (5) two ends are aligned by " " type glue tube base (3) respectively and block sulfuration on central tube (4), and corresponding central tube (4) has been located slot (6) in the middle of the packing element (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208834 CN2434428Y (en) | 2000-04-30 | 2000-04-30 | Hydraulic power expansion packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00208834 CN2434428Y (en) | 2000-04-30 | 2000-04-30 | Hydraulic power expansion packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434428Y true CN2434428Y (en) | 2001-06-13 |
Family
ID=33576092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00208834 Expired - Lifetime CN2434428Y (en) | 2000-04-30 | 2000-04-30 | Hydraulic power expansion packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434428Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563955A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Steel pipe hydraulic expansion type external casing packer |
| CN105587287A (en) * | 2016-03-07 | 2016-05-18 | 威海丰泰新材料科技股份有限公司 | Expansion type packer |
| CN107939334A (en) * | 2017-11-03 | 2018-04-20 | 西南石油大学 | A kind of plunger type amplificate packer |
| CN108086938A (en) * | 2016-11-21 | 2018-05-29 | 中国石油化工股份有限公司 | A kind of packer |
| CN111911108A (en) * | 2020-08-18 | 2020-11-10 | 大庆华油石油科技开发有限公司 | Hydraulic expansion type packer |
-
2000
- 2000-04-30 CN CN 00208834 patent/CN2434428Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563955A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Steel pipe hydraulic expansion type external casing packer |
| CN104563955B (en) * | 2013-10-27 | 2017-02-15 | 中国石油化工集团公司 | Steel pipe hydraulic expansion type external casing packer |
| CN105587287A (en) * | 2016-03-07 | 2016-05-18 | 威海丰泰新材料科技股份有限公司 | Expansion type packer |
| CN108086938A (en) * | 2016-11-21 | 2018-05-29 | 中国石油化工股份有限公司 | A kind of packer |
| CN108086938B (en) * | 2016-11-21 | 2020-03-31 | 中国石油化工股份有限公司 | Packer |
| CN107939334A (en) * | 2017-11-03 | 2018-04-20 | 西南石油大学 | A kind of plunger type amplificate packer |
| CN111911108A (en) * | 2020-08-18 | 2020-11-10 | 大庆华油石油科技开发有限公司 | Hydraulic expansion type packer |
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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 |
Granted publication date: 20010613 |