CN205422627U - Rubber sleeve protection device of packer - Google Patents
Rubber sleeve protection device of packer Download PDFInfo
- Publication number
- CN205422627U CN205422627U CN201620193409.4U CN201620193409U CN205422627U CN 205422627 U CN205422627 U CN 205422627U CN 201620193409 U CN201620193409 U CN 201620193409U CN 205422627 U CN205422627 U CN 205422627U
- Authority
- CN
- China
- Prior art keywords
- packing element
- shoulder
- packer
- support ring
- shoulder protector
- 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.)
- Active
Links
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a rubber sleeve protection device of packer is located the outside of the packing element shoulder at packing element both ends, rubber sleeve protection device of packer includes the support ring and the shoulder pad of following the packing element tip and outwards setting up in proper order, support ring and shoulder pad all have good ductility, the support ring includes radial stop part that leans on with the outer peripheral face counterbalance of packing element shoulder and the axial stop part that leans on with the terminal surface counterbalance of packing element shoulder, the outer peripheral face of axial stop part supports with the inner facial features of shoulder pad and leans on. When packer setting, the utility model provides a support ring and shoulder pad can prevent effectively that the packer packing element from producing shoulder effect suddenly to avoid tearing and damaging of packer packing element, especially packing element shoulder, and then improved the bearing capacity and the sealing performance of packing element, satisfied the operation requirement of packer under the high voltage ring border.
Description
Technical field
This utility model relates to a kind of packer, particularly relates to a kind of protective device for packer rubber tube.
Background technology
Packer is a kind of for the downhole tool of annular space (hereinafter referred to as " annular space ") between sealing pipe column and well and between tubing string and tubing string, packer is mainly made up of mandrel, piston, upper cone, lower cone, slips, packing element etc., wherein, packing element is the element that packer is more crucial, plays the effect sealing annular space.In process of production, the operting differential pressure that the top and bottom of packing element are born is a kind of alternate load, and the axial compressive force that operting differential pressure is formed is far longer than the seating sealing load of packer；Therefore, packer is when setting, packing element can be compressed under the effect of operting differential pressure further, so that the packing element shoulder at packing element two ends is by the inventionannulus flow between Pressure Block and sleeve pipe, cause the prominent deformation aggravation of packing element shoulder, being easily caused packing element shoulder to tear because of excessive extrusion, damage, the sealing finally directly resulting in packing element formation cannot bear high pressure, significantly reduces the sealing property of packer.At present, oil-water well is more and more higher to the requirement of the serviceability of packer, how to prevent from packing element to be unlikely to deform tear and damage and how to improve packing element sealing property seeming ever more important.
Utility model content
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is that providing a kind of can effectively prevent packing element from tearing the protective device for packer rubber tube of damage because of excessive dilatancy.
For achieving the above object; this utility model provides a kind of protective device for packer rubber tube; it is positioned at the outside of the packing element shoulder at packing element two ends; described protective device for packer rubber tube includes support ring and the shoulder protector the most outwards arranged from packing element end; described support ring and shoulder protector all have elasticity; described support ring includes that what the radial direction stop part leant with the outer peripheral face of packing element shoulder and the end face with packing element shoulder leant axially traps portion, described in axially trap portion the inner face of outer peripheral face and shoulder protector lean.
Preferably, described in the portion of axially trapping be cone cylinder shape, the external diameter and the internal diameter that axially trap portion are gradually reduced the most from inside to outside.
Preferably, described shoulder protector is cone cylinder shape, and external diameter and the internal diameter of shoulder protector are gradually reduced the most from inside to outside.
Further, axially trap described in and between portion and shoulder protector, be formed with cyclic deformation region.
Preferably, the material of described support ring and shoulder protector is soft metal.
As it has been described above, the protective device for packer rubber tube that this utility model relates to, have the advantages that
When packer setting, support ring and shoulder protector in this utility model can effectively prevent packing element from producing shoulder effect, thus avoid tear and the damage of packing element, particularly packing element shoulder, and then improve the bearing capacity of packing element and sealing property, meet packer use requirement under environment under high pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of protective device for packer rubber tube in this utility model.
Fig. 2 is the structural representation of support ring in Fig. 1.
Fig. 3 is the structural representation of shoulder protector in Fig. 1.
Fig. 4 is the structural representation being arranged in packer by protective device for packer rubber tube.
Fig. 5 is that the A of Fig. 4 encloses enlarged drawing.
Element numbers explanation
1 packing element
11 packing element shoulders
2 support rings
21 radial direction stop parts
22 axially trap portion
3 shoulder protectors
4 sleeve pipes
5 cyclic deformation regions
6 mandrels
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art can be understood other advantages of the present utility model and effect easily by the content disclosed by this specification.
Notice, structure depicted in this specification institute accompanying drawings, ratio, size etc., the most only in order to coordinate the content disclosed in description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", the term of " middle " etc., it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, being altered or modified of its relativeness, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
This utility model provides a kind of protective device for packer rubber tube, is positioned at the outside of the packing element shoulder 11 at packing element about 1 two ends and is arranged in the mandrel 6 of packer.As shown in Figures 1 to 5; described protective device for packer rubber tube includes support ring 2 and the shoulder protector 3 the most outwards arranged from packing element 1 end; described support ring 2 and shoulder are the most all tubular structure; and support ring 2 and shoulder protector 3 all have elasticity, be easy to support ring 2 and shoulder protector 3 open and resilience is shunk; described support ring 2 includes the portion that axially traps 22 that the radial direction stop part 21 leant with the outer peripheral face of packing element shoulder 11 and the end face with packing element shoulder 11 lean, described in axially trap portion 22 the inner face of outer peripheral face and shoulder protector 3 lean.
During use, be arranged on by above-mentioned protective device for packer rubber tube at the two ends up and down of packing element 1, i.e. the periphery of the packing element shoulder 11 at packing element about 1 two ends is equipped with described support ring 2 and shoulder protector 3.Packer is gone into the well with completion tubular column after putting in place, by pitching or under enter blanking plug by the way of with closure oil pipe and the passage of annular space；Suppressing from oil pipe, fluid pressure transmission hole in packer mandrel 6 enters hydraulic cylinder；Under the effect of hydraulic pressure, first the shear pin that sets on packer piston is cut off, then descent of piston promotes upper cone and lower cone to sit the slips of card packer in opposite directions, makes slips open and is fully anchored on sleeve pipe 4 tube wall；Shear pin on packer lock tube is cut off afterwards, packer setting.During packer setting, under the effect of axial load, the packing element 1 of packer is axially compressed rear expanded radially and then Seal Oil set annular space；Now, owing to packing element 1 is by existing operting differential pressure between unidirectional active force, and the two ends up and down of packing element 1, therefore packing element 1 is pressed further by expanding, packing element 1, after particularly packing element shoulder 11 is squeezed toward Impact direction drastic deformation.Owing to support ring 2 and shoulder protector 3 are sequentially located at the outside of packing element 1 upper end lower end, therefore the radial direction stop part 21 of support ring 2 and axially trap portion 22, and shoulder protector 3 all gradually opens under the effect of packing element 1 extruding force, thus reduce the gap between packer and sleeve pipe 4, i.e. reduce the size of annular space, stop packing element 1, the particularly continuation outward expansion of packing element shoulder 11, thus packing element 1 can be prevented effectively from, the particularly tear of packing element shoulder 11 and damage, and then improve bearing capacity and the sealing property of packing element 1, reach effectively to protect packing element 1, meet packer in various hole conditions and in various environment under high pressures, use the purpose of requirement.
Preferably, in order to make support ring 2 and shoulder protector 3 preferably to open and resilience contraction, as shown in Figure 1 to Figure 3, the radial direction stop part 21 of described support ring 2 is cylindrically, the portion that axially traps 22 of support ring 2 is in cone cylinder shape, therefore radially stop part 21 has inner peripheral surface and outer circumference surface, support ring 2 has internal conical surface and an outer conical surface, and axially traps the external diameter in portion 22 and internal diameter is gradually reduced the most from inside to outside；Described shoulder protector 3 is in cone cylinder shape, therefore shoulder protector 3 also has internal conical surface and outer conical surface, and the external diameter of shoulder protector 3 and internal diameter are gradually reduced the most from inside to outside.The inner peripheral surface of described radial direction stop part 21 is close to lean with the outer circumference surface of packing element shoulder 11, the end face of the described internal conical surface and packing element shoulder 11 axially trapping portion 22 is close to lean, and the internal conical surface of the outer conical surface and shoulder protector 3 that axially trap portion 22 is close to lean；Therefore, when packer setting, when packing element 1 dilatancy by compression, the portion that axially traps 22 and the shoulder protector 3 that are positioned at the support ring 2 of packing element 1 end can open well；When removing seal for packer, the portion that axially traps 22 and the shoulder protector 3 that are positioned at the support ring 2 of packing element 1 end can be regained well in resilience.
Further; as shown in Figure 1; the external diameter in the portion that axially traps 22 of described support ring 2 is less than the internal diameter of shoulder protector 3; therefore; described axially trapping is formed with cyclic deformation region 5 between portion 22 and shoulder protector 3; preferably allow support ring 2 open, to stop the further dilatancy of packing element 1 or packing element shoulder 11, be effectively protected packing element 1.
Preferably; the material of described support ring 2 and shoulder protector 3 is soft metal; this material ductility is good; the tendency forming cold cracking is the least; machinability and cold strain plasticity are good; there is extraordinary elastic deformation ability, so that support ring 2 and shoulder protector 3 can preferably open, and then play the effect of protection packing element 1 more reliably.
In sum, the protective device for packer rubber tube that this utility model relates to is at packer setting, when packing element 1 is by compression-expansion, owing to having certain interval between packer and sleeve pipe 4, therefore packing element 1 can be toward Impact direction drastic deformation when being squeezed, so that support ring 2 and shoulder protector 3 in protection device gradually open under stress effect, the gap between packer and sleeve pipe 4 is reduced with this, thus stop packing element 1, the particularly continuation outward expansion deformation of packing element shoulder 11, and then can effectively prevent packing element 1, there is tear in particularly packing element shoulder 11, the phenomenons such as damage, improve bearing capacity and the sealing property of packing element 1.So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for limiting this utility model.Above-described embodiment all can be modified under spirit and the scope of the present utility model or change by any person skilled in the art.Therefore, art has all equivalence modification or changes that usually intellectual is completed under without departing from the spirit disclosed in this utility model and technological thought such as, must be contained by claim of the present utility model.
Claims (5)
1. a protective device for packer rubber tube, it is positioned at the outside of the packing element shoulder (11) at packing element (1) two ends, it is characterized in that: described protective device for packer rubber tube includes support ring (2) and the shoulder protector (3) the most outwards arranged from packing element (1) end, described support ring (2) and shoulder protector (3) all have elasticity, described support ring (2) includes the radial direction stop part (21) leant with the outer peripheral face of packing element shoulder (11), and the portion that axially traps (22) leant with the end face of packing element shoulder (11), the inner face of the described outer peripheral face and shoulder protector (3) axially trapping portion (22) leans.
Protective device for packer rubber tube the most according to claim 1, it is characterised in that axially trapping portion (22) described in: in cone cylinder shape, the external diameter and the internal diameter that axially trap portion (22) are gradually reduced the most from inside to outside.
Protective device for packer rubber tube the most according to claim 1, it is characterised in that: described shoulder protector (3) is in cone cylinder shape, and external diameter and the internal diameter of shoulder protector (3) are gradually reduced the most from inside to outside.
Protective device for packer rubber tube the most according to claim 1, it is characterised in that axially trap described in: and be formed with cyclic deformation region (5) between portion (22) and shoulder protector (3).
5. according to the protective device for packer rubber tube described in any one of claim 1-4, it is characterised in that: the material of described support ring (2) and shoulder protector (3) is soft metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193409.4U CN205422627U (en) | 2016-03-14 | 2016-03-14 | Rubber sleeve protection device of packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620193409.4U CN205422627U (en) | 2016-03-14 | 2016-03-14 | Rubber sleeve protection device of packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422627U true CN205422627U (en) | 2016-08-03 |
Family
ID=56533745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620193409.4U Active CN205422627U (en) | 2016-03-14 | 2016-03-14 | Rubber sleeve protection device of packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205422627U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
| CN111535774A (en) * | 2020-05-21 | 2020-08-14 | 天鼎联创密封技术（北京）有限公司 | Shoulder pad, sealing cylinder and packer |
| CN112282690A (en) * | 2020-10-27 | 2021-01-29 | 大庆泰泽机械加工有限公司 | Rubber sleeve shoulder has protection architecture and high temperature and high pressure resistant expanding packer |
| CN113775315A (en) * | 2021-09-29 | 2021-12-10 | 四机赛瓦石油钻采设备有限公司 | High-temperature high-pressure sealing system |
| CN113775316A (en) * | 2021-11-11 | 2021-12-10 | 中石化西南石油工程有限公司 | Compression type rubber barrel assembly for packer and manufacturing method thereof |
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
-
2016
- 2016-03-14 CN CN201620193409.4U patent/CN205422627U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
| CN111535774A (en) * | 2020-05-21 | 2020-08-14 | 天鼎联创密封技术（北京）有限公司 | Shoulder pad, sealing cylinder and packer |
| CN112282690A (en) * | 2020-10-27 | 2021-01-29 | 大庆泰泽机械加工有限公司 | Rubber sleeve shoulder has protection architecture and high temperature and high pressure resistant expanding packer |
| CN113775315A (en) * | 2021-09-29 | 2021-12-10 | 四机赛瓦石油钻采设备有限公司 | High-temperature high-pressure sealing system |
| CN113775316A (en) * | 2021-11-11 | 2021-12-10 | 中石化西南石油工程有限公司 | Compression type rubber barrel assembly for packer and manufacturing method thereof |
| CN113775316B (en) * | 2021-11-11 | 2022-03-29 | 中石化西南石油工程有限公司 | Manufacturing method of compression type rubber barrel assembly for packer |
| CN116446820A (en) * | 2023-04-27 | 2023-07-18 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
| CN116446820B (en) * | 2023-04-27 | 2023-10-31 | 盐城市弘通石油机械有限公司 | Tail pipe top packer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205422627U (en) | Rubber sleeve protection device of packer | |
| CN104265234B (en) | Constant pressure stepped-depacking packer | |
| CN105156065B (en) | Seal and compression packer | |
| CN102704887A (en) | Positionless expanding lock ring for subsea annulus seals for lockdown | |
| CN105114027A (en) | Flexible self-sealed anti-humeral-protrusion compression packer | |
| CN103375146A (en) | Outburst prevention device and outburst prevention method for packer sealing mechanism | |
| CN203296745U (en) | Rubber sleeve protection device of packer | |
| CN104389548B (en) | High temperature high voltage resistant tubing packer | |
| CN103527135B (en) | Double-cylinder compression packer | |
| CN203362089U (en) | Secondary expansion patching device passing patching tube | |
| EP2876250B1 (en) | Liner hanger top packer | |
| CN204175230U (en) | Constant pressure stepped-depacking packer | |
| CN203905892U (en) | Outburst preventing device for compression type packer | |
| CN211287616U (en) | Bridge plug | |
| CN210178325U (en) | Reducing hydraulic blanking plug | |
| CN204327035U (en) | A kind of pressure break high pressure resistant packer | |
| CN203847059U (en) | Compressing type packer rubber sleeve meeting requirement for multiple times of repeated setting | |
| CN206592098U (en) | A kind of pitching deblocking packer | |
| CN211287610U (en) | Sleeve packer | |
| CN211258566U (en) | Novel controllable ball seat of titanium | |
| CN206513341U (en) | Packing element, packer and the bridging plug of anti-shoulder | |
| CN203961889U (en) | From the Y445 packer of testing envelope | |
| CN205154085U (en) | Instrument is retrieved to wire rope blanking plug | |
| CN2846730Y (en) | Hydraulic cement umbrella | |
| CN203594405U (en) | High-temperature and high-pressure large-drift-diameter sleeve hydraulic packer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201805 Anting Jiading District Town Park Road, No. 2, building 338, No. Patentee after: Shanghai superior automation equipment Limited by Share Ltd Address before: 201805 Anting Jiading District Town Park Road, No. 2, building 338, No. Patentee before: Shanghai Genie-Robot Automatic Co., Ltd. |