CN201129161Y - Small diameter compressing packer - Google Patents
Small diameter compressing packer Download PDFInfo
- Publication number
- CN201129161Y CN201129161Y CNU2007201877675U CN200720187767U CN201129161Y CN 201129161 Y CN201129161 Y CN 201129161Y CN U2007201877675 U CNU2007201877675 U CN U2007201877675U CN 200720187767 U CN200720187767 U CN 200720187767U CN 201129161 Y CN201129161 Y CN 201129161Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- cone
- centralizer
- oil
- central pipe
- 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 the compression typed packer of a small diameter used for exploiting oil, injecting water, checking sealing, checking casing and looking for the leakage of oil wells of oil fields, and comprises a top joint, a central pipe, a bottom joint, a cone cap arranged on the central pipe, a cone connected with the cone cap, an end packer rubber, a caulking ring, a central packer rubber, a caulking ring, an end packer rubber which are arranged on the central pipe orderly, and a centralizer body sheathed on the central pipe, and an open slip tooth arranged on the central pipe below the cone. The head part of the slip tooth is matched with the cone and the tail part of the slip tooth is arranged on the central pipe by rings; the upper ring and the tail part of the slip tooth are provided with one head of a slip pressure spring and the other end is fixed on the centralizer; the centralizer is provided with a centralizer groove for placing a centralizer block; the centralizer block is arranged in the centralizer groove through the middle ring and a reversing sleeve; a pressure spring of the centralizer block is pressed against the central pipe, thus comparatively finely meeting the requirements of oil exploitation or water injection in oil and water wells with 4 inch sleeves. The packer has the advantages of having simple structure, setting and unsetting flexibly, and being used for the oil exploitation and the water injection in the oil and water wells.
Description
Technical field
The utility model belongs to the oil recovery technique field, relates in particular to a kind of oil recovery, water filling that is applied to oilfield, tests envelope, tests cover and looks for leakage minor diameter compression packer.
Background technology
Along with the part oil field enters development phase middle and later periods, oil field 4 cun covers oil-water well quantity increases year by year, the major diameter instrument that present oil field is used can't satisfy the needs of oil recovery of 4 cun cover oil-water wells or water filling, and therefore, a kind of small diameter tools that are used for 4 cun cover oil-water wells are badly in need of in the oil field.
Summary of the invention
Recover the oil or the water filling problem in order to solve 4 cun cover oil-water wells better, improve the crude oil total output of oil-producing region, the utility model provides a kind of minor diameter compression packer, and this compression packer can satisfy the needs of oil recovery of 4 cun cover oil-water wells or water filling preferably.
The technical scheme that its technical problem that solves the utility model adopts is: comprise top connection, the central tube that is threaded with top connection, the lower contact that is threaded with central tube, be installed in the cone cap on the central tube step, be installed in the cone that is connected with the cone cap thread on the central tube, install the end packing element that is arranged in order on the central tube between joint and the cone cap, spacer ring, middle packing element, spacer ring, end packing element and be sleeved on centralizer body on the central tube, open slip insert is installed on the central tube below the cone, the slip insert head matches with cone, the slip insert afterbody is installed on the central tube by last ring, one of slips stage clip also is installed at last ring and slip insert afterbody, the other end of slips stage clip is fixed on the centralizer body, on centralizer body, have the wiper block groove of placing wiper block, wiper block is arranged in the wiper block groove by middle ring and reversing cover, and the wiper block stage clip is pressed on the central tube.
One of reversing cover is installed on the centralizer body by check pin, and the other end of reversing cover is installed on the commutation pin that is arranged on lower contact by pin hole.
Between top connection and central tube, be provided with sealing ring.Between lower contact and central tube, be provided with sealing ring.The other end of slips stage clip by screw on centralizer body.Be provided with sealing ring (7) between central tube and the cone cap.
The beneficial effects of the utility model are: this compression packer can satisfy preferably that 4 cun cover oil-water wells recover the oil or the needs of water filling, and is simple in structure, sets, deblocking is flexible.
Description of drawings
Fig. 1 is structural plan figure of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model comprises top connection 1, the central tube 6 that is threaded with top connection 1, the lower contact 22 that is threaded with central tube 6, is installed in cone cap 8 on the central tube step, is installed in the cone 9 that is threaded with cone cap 8 on the central tube, installs the end packing element 3 that is arranged in order on the central tube between joint 1 and the cone cap 8, spacer ring 4, middle packing element 5, spacer ring 4, end packing element 3 and is sleeved on centralizer body 13 on the central tube.Between top connection 1 and central tube 6, be provided with sealing ring 2.Between lower contact 22 and central tube 6, be provided with sealing ring 21.Be provided with sealing ring 7 between central tube and the cone cap 8.Cone cap 8 is stuck on the central tube step, and the cone 9 that is threaded with cone cap 8 can rotatablely move.Being arranged in order on central tube between top connection 1 and the cone cap 8 held packing element 3, spacer ring 4, middle packing element 5, spacer ring 4, end packing element 3.
On centralizer body 13, have the wiper block groove of placing wiper block 17, wiper block 17 is arranged in the wiper block groove by middle ring 15 and reversing cover 19, ring 15 and reversing cover 19 are pressed in wiper block 17 in the wiper block groove promptly, and wiper block stage clip 16 is pressed on the central tube 6.
One of reversing cover 19 is installed on the centralizer body 13 by check pin 18, and the other end of reversing cover 19 is installed on the commutation pin 20 that is arranged in the lower contact by pin hole.The other end of slips stage clip 12 is fixed on the centralizer body 13 by screw 14.
Wiper block groove two end mills of centralizer body become through hole, reduce radial dimension; Central tube and upper and lower joint adopt flat linking to connect, and add the sealing of " O " RunddichtringO; The packing element shoulder has designed by what red copper was made and has protected bowl, has improved the high-voltage resistance capability of packing element, has reduced packer inefficacy probability.
The job execution step:
A, trip out former well casing post;
B, following drifting tubing string pass to the following 10-20 rice of card shut-in well section;
C, setting of casing scraper, the 10 meters scrapings repeatedly up and down of present envelope section;
D, go into the well before, connect by design tubing string figure and to go into the well.In the process of going into the well, play lower tubular column speed evenly (about 25 pieces/hour), forbid tubing string to be carried suddenly suddenly and put, cause packer to set midway.
E, in case packer occurs and set midway, upper lifting pipe post 2-3 rice immediately, tubing string is transferred in examination again, determines that packer is separated to be honored as a queen, and transfers tubing string by normal speed again.
Behind the precalculated position, press well depth upper lifting pipe post certain altitude under f, the packer, just changeing again and transferring tubing string packer setting.
Claims (6)
1, a kind of minor diameter compression packer, comprise top connection (1), the central tube (6) that is threaded with top connection (1), the lower contact (22) that is threaded with central tube (6), be installed in the cone cap (8) on the central tube step, be installed in the cone (9) that is threaded with cone cap (8) on the central tube, install the end packing element (3) that is arranged in order on the central tube between joint (1) and the cone cap (8), spacer ring (4), middle packing element (5), spacer ring (4), end packing element (3) and be sleeved on centralizer body (13) on the central tube, it is characterized in that: on the central tube of cone (9) below, open slip insert (10) is installed, the slip insert head matches with cone (9), the slip insert afterbody is installed on the central tube by last ring (11), one of slips stage clip (12) also is installed at last ring (11) and slip insert afterbody, the other end of slips stage clip (12) is fixed on the centralizer body (13), on centralizer body (13), have the wiper block groove of placing wiper block (17), wiper block (17) is arranged in the wiper block groove by middle ring (15) and reversing cover (19), and wiper block stage clip (16) is pressed on the central tube (6).
2, minor diameter compression packer according to claim 1, it is characterized in that: of reversing cover (19) is installed on the centralizer body (13) by check pin (18), and the other end of reversing cover (19) is installed on the commutation pin (20) that is arranged in the lower contact by pin hole.
3, minor diameter compression packer according to claim 1 is characterized in that: be provided with sealing ring (2) between top connection (1) and central tube (6).
4, minor diameter compression packer according to claim 1 is characterized in that: be provided with sealing ring (21) between lower contact (22) and central tube (6).
5, minor diameter compression packer according to claim 1 is characterized in that: the other end of slips stage clip (12) is fixed on the centralizer body (13) by screw (14).
6, minor diameter compression packer according to claim 1 is characterized in that: be provided with sealing ring (7) between central tube and the cone cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201877675U CN201129161Y (en) | 2007-12-28 | 2007-12-28 | Small diameter compressing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201877675U CN201129161Y (en) | 2007-12-28 | 2007-12-28 | Small diameter compressing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129161Y true CN201129161Y (en) | 2008-10-08 |
Family
ID=40017001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201877675U Expired - Fee Related CN201129161Y (en) | 2007-12-28 | 2007-12-28 | Small diameter compressing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129161Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074487A (en) * | 2014-07-11 | 2014-10-01 | 中国石油大学(北京) | Packer |
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
| CN106761535A (en) * | 2016-11-24 | 2017-05-31 | 中国石油大学(北京) | A kind of packer |
-
2007
- 2007-12-28 CN CNU2007201877675U patent/CN201129161Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074487A (en) * | 2014-07-11 | 2014-10-01 | 中国石油大学(北京) | Packer |
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
| CN105781476B (en) * | 2016-05-16 | 2018-03-30 | 陈晓新 | A kind of packer |
| CN106761535A (en) * | 2016-11-24 | 2017-05-31 | 中国石油大学(北京) | A kind of packer |
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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: 20081008 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |