CN202181874U - Packer for oil well production - Google Patents
Packer for oil well production Download PDFInfo
- Publication number
- CN202181874U CN202181874U CN2011202841709U CN201120284170U CN202181874U CN 202181874 U CN202181874 U CN 202181874U CN 2011202841709 U CN2011202841709 U CN 2011202841709U CN 201120284170 U CN201120284170 U CN 201120284170U CN 202181874 U CN202181874 U CN 202181874U
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- CN
- China
- Prior art keywords
- central tube
- packer
- cone
- assembly
- slip
- 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 - Fee Related
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Abstract
The utility model relates to a packer for oil well production, which comprises a central pipe and an upper joint. A sealing rubber cylinder component, a cone and a slip assembly are sleeved outside the central pipe. The packer is characterized in that the central pipe extends from the upper end and penetrates to the lower end, and the upper end of the central pipe is connected with the upper joint; the sealing rubber cylinder component is sleeved outside the central pipe at the lower end of the upper joint; the cone is installed below the sealing rubber cylinder component, and the lower part of the cone is connected with the slip assembly sleeved outside the central pipe in a matching manner; and a centralizer is arranged at the lower end of the slip assembly. The utility model has the beneficial effects that the packer not only can be used for packing by using the gravity of a pipe column above the packer, but also can be used for packing through compressing a rubber cylinder by utilizing the self gravity of a tail pipe to ensure that the pipe column is normally packed under a working state, prevent cement paste from entering an oil and water layer and further achieve the purpose of protecting the oil and water layer, thereby the packing reliability of the packer is further improved; and with the adoption of the structure of a one-way slip, the pipe column is ensured to have good axial bearing capacity. The packer is reasonable and compact in structure and is convenient to use.
Description
Technical field
The utility model relates to a kind of packer that is used for oil mining, is used for the downhole packing oil sets annular space, belongs to oil well production and uses downhole tool.
Background technology
Existing packer mainly is made up of the central tube packing element outer with being sleeved on central tube, cone, slips assembly etc. like Y211-114 type packer.In the process of setting, the tailpipe load below the packer can only act on cone and the slips, and packer mainly is to rely on the above tubing string suspending weight of packer to compress the purpose that packing element reaches the sealing oil sets annular space.After packer is given up, set pressure solutions and remove, its packing element is prone to rely on self elastic force recovery, the inefficacy that causes packer normally to set.
Summary of the invention
The utility model technical problem to be solved is to overcome the deficiency of above-mentioned prior art existence and provides a kind of structure to be provided with rationally, sets the packer that is used for oil mining of dependable performance.
The technical scheme that the utility model proposed is: include central tube and top connection; Outside central tube, be set with cartridge assembly, cone and slips assembly, it is characterized in that described central tube extends through to the lower end from the upper end, the central tube upper end joins with top connection; Suit cartridge assembly outside the central tube of top connection lower end; Cone is installed in the below of cartridge assembly, and the centrum below is matched with the slips assembly that is sleeved on outside the central tube, installs centralizer in the lower end of slips assembly.
Press such scheme, described cartridge assembly is connected and composed up and down by one or more cartridge, between each cartridge, is installed on spacer ring.
Press such scheme, described central tube is outer to offer the axial limiting groove corresponding to cone, is installed on spacer pin and axial limiting groove phase configuration on the cone.
Press such scheme, described slips assembly is the one-way slip assembly, and described one-way slip assembly comprises slips and slip spider, and slips is last, and slip spider is following.
Press such scheme; Described centralizer comprises sets upright seat and wiper block; Set upright the seat and wiper block between be installed on radial spring; Set upright seat below be installed on slip ring and slip ring seat, be installed on the lower limit groove phase configuration offered below pin and the central tube on the slip ring, the slip ring cover for seat is contained in the slip ring periphery and installs position-limitting pin.
Press such scheme, described top connection axial length is 150～200 millimeters; Described central tube lower end is provided with connecting thread.
The utility model use is: when under the packer behind the precalculated position; By required seating sealing height upper lifting pipe post; Slips and centralizer are commutated get in the track pipe range groove; Transfer tubing string again, wiper block is close to casing wall by means of the strength of compression spring and is kept motionless with slips with respect to sleeve pipe.And top connection, cartridge, cone, central tube and tail pipe come downwards to cone contact slips together and slips is strutted fully, make it to be seated on the casing wall, and top connection continues descending weight with tubing string and presses bloated cartridge to be close to casing wall and to reach sealing.After tubing string is given up, preset the tail pipe suspending weight and act on and make packing element be in compressive state Seal Oil cover annular space all the time in the top connection.Packer setting travel is by cone position position-limitting pin and central tube upper limit position groove location.Upper lifting pipe post during deblocking, top connection is up, and packing element is promptly recoverable; Continue the upper lifting pipe post, cone is separated with slips, and slips is regained unfreezing; Meanwhile, packing element continues radial contraction completion deblocking.
The beneficial effect of the utility model is: 1, both can set with the above tubing string gravity of packer, and reach duty, also available suspension tail pipe is given up through back-off sub and to be utilized tail pipe deadweight compression packing element to set, and reaches duty; Because the load of tail pipe can directly act in the top connection, packer still can keep the state of setting after tubing string was given up, and can guarantee normally setting under tubing string in working order, stoped cement paste to get into oil-water-layer, and then reached the purpose of protection oil-water-layer.The reliability that sets that sets device is further improved, and the one-way slip structure has guaranteed that tubing string has good axial bearing capacity.2, be 150～200 millimeters with the top connection contraction in length, improved the sand washing condition, the sand grains of the clean packing element upper annulus deposition of ability complete flushing, the generation of having avoided salvaging lock of tool drilling.3, structure is provided with reasonable compactness, and is easy to use.
Description of drawings
Fig. 1 is the forward half sectional view of an embodiment of the utility model.
The specific embodiment
Further specify the specific embodiment and the structure of the utility model below in conjunction with accompanying drawing; Include central tube 2; Central tube extends through from the upper end to the lower end always; The central tube upper end joins with top connection 1, and the top connection axial length is 150 millimeters, and the lower end of top connection is provided with the bigger backstop end face of diameter; Suit cartridge assembly outside the central tube of top connection lower end, described cartridge assembly is connected and composed up and down by 2～5 cartridge 3, between each cartridge, is installed on spacer ring 4; The below of cartridge assembly connects cone 5, and cone is sleeved on outside the central tube, outside central tube, offers the axial limiting groove corresponding to cone, is installed on spacer pin 6 and axial limiting groove phase configuration on the cone, in order to the relative displacement between control centre's pipe and the cone; The centrum below is matched with the slips assembly that is sleeved on outside the central tube, and described slips assembly is the one-way slip assembly, comprises slips 7, garter spring 8 and slip spider 9, and slips is last, and slip spider is following.Termination centralizer under the slip spider; Described centralizer comprises sets upright seat 12 and wiper block 10, sets upright cover for seat and is contained in outside the central tube, sets upright a upper and lower side and the bigger shaft shoulder of diameter is set respectively and offers guide groove; Pin 16 phase configuration of installing on upper end guide groove and the slip spider; Pin 17 phase configuration of installing on lower end guide groove and the slip ring seat are installed on radial spring 11 setting upright between seat and the wiper block, and the below of setting upright seat is installed on slip ring 14 and slip ring seat 15; Be installed on the lower limit groove phase configuration that pin 13 and central tube below is offered on the slip ring, the slip ring cover for seat is contained in slip ring periphery and slip ring phase configuration.
Claims (7)
1. a packer that is used for oil mining includes central tube and top connection, outside central tube, is set with cartridge assembly, cone and slips assembly; It is characterized in that described central tube extends through to the lower end from the upper end; The central tube upper end joins with top connection, suit cartridge assembly outside the central tube of top connection lower end, and cone is installed in the below of cartridge assembly; The centrum below is matched with the slips assembly that is sleeved on outside the central tube, installs centralizer in the lower end of slips assembly.
2. by the described packer that is used for oil mining of claim 1, it is characterized in that described cartridge assembly is connected and composed up and down by one or more cartridge, is installed on spacer ring between each cartridge.
3. by claim 1 or the 2 described packers that are used for oil mining, it is characterized in that offering the axial limiting groove corresponding to cone outside the described central tube, be installed on spacer pin and axial limiting groove phase configuration on the cone.
4. by claim 1 or the 2 described packers that are used for oil mining, it is characterized in that described slips assembly is the one-way slip assembly, described one-way slip assembly comprises slips and slip spider, and slips is last, and slip spider is following.
5. by claim 1 or the 2 described packers that are used for oil mining; It is characterized in that described centralizer comprise set upright the seat and wiper block; Set upright the seat and wiper block between be installed on radial spring; Set upright seat below be installed on slip ring and slip ring seat, be installed on the lower limit groove phase configuration offered below pin and the central tube on the slip ring, the slip ring cover for seat is contained in the slip ring periphery and installs position-limitting pin.
6. by claim 1 or the 2 described packers that are used for oil mining, it is characterized in that described top connection axial length is 150～200 millimeters.
7. by claim 1 or the 2 described packers that are used for oil mining, it is characterized in that described central tube lower end is provided with connecting thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202841709U CN202181874U (en) | 2011-08-05 | 2011-08-05 | Packer for oil well production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202841709U CN202181874U (en) | 2011-08-05 | 2011-08-05 | Packer for oil well production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181874U true CN202181874U (en) | 2012-04-04 |
Family
ID=46174916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202841709U Expired - Fee Related CN202181874U (en) | 2011-08-05 | 2011-08-05 | Packer for oil well production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202181874U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362470A (en) * | 2012-04-11 | 2013-10-23 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Annular mechanical packer for oil gas well |
| CN103867159A (en) * | 2012-12-13 | 2014-06-18 | 中国石油化工股份有限公司 | Integrated mechanical clamp seal type packer of pump seal and method for preventing tubular column from being bent |
| CN104641068A (en) * | 2012-10-01 | 2015-05-20 | 哈里伯顿能源服务公司 | Well tools having energized seals |
| CN107143303A (en) * | 2017-07-12 | 2017-09-08 | 天津大港油田石油工程研究院钻采技术开发有限公司 | A kind of packer and its application method |
| CN108518196A (en) * | 2018-04-08 | 2018-09-11 | 徐州大屯工程咨询有限公司 | A kind of drilling antipriming |
| CN109869569A (en) * | 2019-03-28 | 2019-06-11 | 天津绿清管道科技股份有限公司 | A kind of intelligence keyholed back plate pipeline packer |
| CN113279722A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Packer for oil exploitation |
-
2011
- 2011-08-05 CN CN2011202841709U patent/CN202181874U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362470A (en) * | 2012-04-11 | 2013-10-23 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Annular mechanical packer for oil gas well |
| CN103362470B (en) * | 2012-04-11 | 2016-03-16 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Oil/gas Well annular mechanical packing packer |
| CN104641068A (en) * | 2012-10-01 | 2015-05-20 | 哈里伯顿能源服务公司 | Well tools having energized seals |
| CN103867159A (en) * | 2012-12-13 | 2014-06-18 | 中国石油化工股份有限公司 | Integrated mechanical clamp seal type packer of pump seal and method for preventing tubular column from being bent |
| CN107143303A (en) * | 2017-07-12 | 2017-09-08 | 天津大港油田石油工程研究院钻采技术开发有限公司 | A kind of packer and its application method |
| CN108518196A (en) * | 2018-04-08 | 2018-09-11 | 徐州大屯工程咨询有限公司 | A kind of drilling antipriming |
| CN109869569A (en) * | 2019-03-28 | 2019-06-11 | 天津绿清管道科技股份有限公司 | A kind of intelligence keyholed back plate pipeline packer |
| CN113279722A (en) * | 2021-06-09 | 2021-08-20 | 门万龙 | Packer for oil exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |