CN204436322U - Packer elasticity packing element - Google Patents
Packer elasticity packing element Download PDFInfo
- Publication number
- CN204436322U CN204436322U CN201520118219.1U CN201520118219U CN204436322U CN 204436322 U CN204436322 U CN 204436322U CN 201520118219 U CN201520118219 U CN 201520118219U CN 204436322 U CN204436322 U CN 204436322U
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- China
- Prior art keywords
- packing element
- annular groove
- packing
- rubber layer
- utility
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Abstract
The utility model proposes packer elasticity packing element.Packing element body is the externally threaded hollow tube of one or two end band, opening in the middle part of the outside diameter of packing element body somely has annular groove, some flowing holes are had between each annular groove and packing element inner body wall, one section of corrugated stainless steel tubing is welded with, ripple the lowest point sulfuration one deck rubber layer of bellows in the both sides end face of each annular groove.The utility model has following beneficial effect: the utility model oil recovery corrugated stainless steel tubing is as the flexible member of packing element, bellows under pressure trough ejects, rubber layer touch the borehole wall and carries out packing, vulcanised rubber layer can also be repeated when rubber is ineffective, can operating cost be reduced, there is good springiness, heat resistance is good, needed for elastic deformation, pressure is little, ejects reliable, the feature that packing is effective.
Description
Technical field:
The utility model relates to a kind of instrument of down-hole in field of oil field oil extraction, particularly relates to a kind of packer elasticity packing element.
Background technology:
In field of oil field oil extraction, usually K344-114 type inflatable packer is used during deep well fracturing, G.I.H after during use, it being connected with oil pipe, under the effect of highly pressurised liquid, packer set, reach the object of the upper and lower oil reservoir of packing, current this packer packing element used is due to reasons in structure, packing element sealing area is little, make the anchorage force of packer little, deblocking under the high pressure effect of down-hole liquid, during pressure break, once envelope incessantly, two oil reservoirs just there will be string layer, existing packing element uses nylon cord to do skeleton, outside sulfuration one deck rubber, but because nylon cord intensity is low thermo-labile, so this structure often causes metal tube head to come off in oil producing operation process, pressure-bearing, the problem that explosion-proof coefficient is little.
Utility model content:
In order to overcome the deficiency in background technology, the utility model provides a kind of packer elasticity packing element.
The technical solution of the utility model is: packer elasticity packing element, comprise packing element body, packing element body is the externally threaded hollow tube of one or two end band, opening in the middle part of the outside diameter of packing element body somely has annular groove, some flowing holes are had between each annular groove and packing element inner body wall, one section of corrugated stainless steel tubing is welded with, ripple the lowest point sulfuration one deck rubber layer of bellows in the both sides end face of each annular groove.
The utility model has following beneficial effect: the utility model oil recovery corrugated stainless steel tubing is as the flexible member of packing element, bellows under pressure trough ejects, rubber layer touch the borehole wall and carries out packing, vulcanised rubber layer can also be repeated when rubber is ineffective, can operating cost be reduced, there is good springiness, heat resistance is good, needed for elastic deformation, pressure is little, ejects reliable, the feature that packing is effective.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model (center line top is utility model works schematic diagram).
1-packing element body in figure, 2-bellows, 3-annular groove, 4-rubber layer, 5-flowing hole.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, packer elasticity packing element, comprise packing element body 1, packing element body 1 is the externally threaded hollow tube of one or two end band, some annular grooves 3 are had in the middle part of the outside diameter of packing element body 1, have some flowing holes 5 between each annular groove 3 and packing element body 1 inwall, in the both sides end face of each annular groove 3, be welded with one section of corrugated stainless steel tubing 2, ripple the lowest point sulfuration one deck rubber layer 4 of bellows 2.
Oil recovery corrugated stainless steel tubing is as the flexible member of packing element, during packing, overpressure enters in bellows by flowing hole, and bellows under pressure trough ejects, rubber layer touch the borehole wall and carries out packing, vulcanised rubber layer can also be repeated when rubber is ineffective, can operating cost be reduced, there is good springiness, heat resistance is good, needed for elastic deformation, pressure is little, ejects reliable, the feature that packing is effective.
Claims (1)
1. a packer elasticity packing element, comprise packing element body (1), it is characterized in that: packing element body (1) is the externally threaded hollow tube of one or two end band, some annular grooves (3) are had in the middle part of the outside diameter of packing element body (1), some flowing holes (5) are had between each annular groove (3) and packing element body (1) inwall, one section of corrugated stainless steel tubing (2) is welded with, ripple the lowest point sulfuration one deck rubber layer (4) of bellows (2) in the both sides end face of each annular groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118219.1U CN204436322U (en) | 2015-02-27 | 2015-02-27 | Packer elasticity packing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118219.1U CN204436322U (en) | 2015-02-27 | 2015-02-27 | Packer elasticity packing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436322U true CN204436322U (en) | 2015-07-01 |
Family
ID=53604200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520118219.1U Expired - Fee Related CN204436322U (en) | 2015-02-27 | 2015-02-27 | Packer elasticity packing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111067667A (en) * | 2019-12-27 | 2020-04-28 | 先健科技(深圳)有限公司 | Force measuring device and pushing assembly thereof |
-
2015
- 2015-02-27 CN CN201520118219.1U patent/CN204436322U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111067667A (en) * | 2019-12-27 | 2020-04-28 | 先健科技(深圳)有限公司 | Force measuring device and pushing assembly thereof |
| CN111067667B (en) * | 2019-12-27 | 2022-04-22 | 先健科技(深圳)有限公司 | Force measuring device and pushing assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Daqing century dragon Petroleum Technology Development Co., Ltd. Assignor: Mao Yuanwei Contract record no.: 2015230000108 Denomination of utility model: Elastic rubber sleeve for packer Granted publication date: 20150701 License type: Exclusive License Record date: 20150826 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20190227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |