CN202810771U - Mechanical compression type pipe-outside packer for multilateral well completion - Google Patents
Mechanical compression type pipe-outside packer for multilateral well completion Download PDFInfo
- Publication number
- CN202810771U CN202810771U CN 201220389746 CN201220389746U CN202810771U CN 202810771 U CN202810771 U CN 202810771U CN 201220389746 CN201220389746 CN 201220389746 CN 201220389746 U CN201220389746 U CN 201220389746U CN 202810771 U CN202810771 U CN 202810771U
- Authority
- CN
- China
- Prior art keywords
- rubber cylinder
- cylinder
- pipe
- sleeved
- 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 - Fee Related
Links
- 230000006835 compression Effects 0.000 title claims abstract description 10
- 238000007906 compression Methods 0.000 title claims abstract description 10
- 229920001875 Ebonite Polymers 0.000 claims abstract description 18
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Abstract
The utility model relates to a tool for multilateral well completion, in particular to a mechanical compression type pipe-outside packer for multilateral well completion. An upper connector, a central pipe and a push cylinder of the tool are in threaded connection in sequence. An upper sleeve is sleeved on the central pipe and is connected with the upper connector. An anti-toppling ring is arranged between the upper connector and the upper sleeve. An upper rubber cylinder seat and a lower rubber cylinder seat are arranged on the central pipe. An upper hard rubber cylinder is arranged on the upper rubber cylinder seat. A lower hard rubber cylinder is arranged on the lower rubber cylinder seat. The upper hard rubber cylinder, a soft rubber cylinder and the lower hard rubber cylinder are sleeved on the central pipe in sequence from top to bottom. A lower sleeve is sleeved at the lower end of the central pipe and is in threaded connection with a lower connector. The push cylinder is fixedly connected with the inner wall of the lower connector through a shearing pin. An O-shaped sealing ring is arranged between the push cylinder and the lower connector. According to the mechanical compression type pipe-outside packer for multilateral well completion, sealing of annulus of a smooth pipe and an intermediate casing is achieved, moving downwards of cement during well cementation is effectively avoided, and the well cementation effect of the coinciding section of the smooth pipe and the intermediate casing is improved.
Description
Technical field:
The utility model relates to a kind of Multilateral Wells completion tool, particularly a kind of Multilateral Wells completion mechanical compression type external packer of pipe.
Background technology:
Need to carry out the upper solid lower operation of hanging during Multilateral Wells main borehole completion, need use external packer of pipe to seal light pipe and protective casing annular space during operation.In most cases be to use uses that be cascaded of two differential external packer of pipe, strengthening sealing effectiveness, yet in operating process, the annular space sealing effectiveness is undesirable usually, and cement is altered the well cementation weak effect of light pipe and protective casing superposition section under easy during well cementation.
The utility model content:
The technical problems to be solved in the utility model provides a kind of Multilateral Wells completion mechanical compression type external packer of pipe, this instrument is installed in two differential external packer of pipe tops when using, sealing light pipe and protective casing annular space have been realized, alter under the cement when effectively preventing from cementing the well, improve the well cementation effect of light pipe and protective casing superposition section.It is undesirable to have overcome in the existing operation process annular space sealing effectiveness, and cement is altered the deficiency of the well cementation weak effect of light pipe and protective casing superposition section under easily during well cementation.
Technical solution adopted in the utility model is: a kind of Multilateral Wells completion mechanical compression type external packer of pipe comprises top connection, central tube and lower contact; Top connection, central tube, the thrust cylinder is threaded in turn, upper bush is sleeved on the central tube and with top connection and is connected, between top connection and the upper bush inverted-proof ring is installed, install glue tube base and lower rubber cylinder seat on the central tube, upper ebonite cylinder is installed on the glue tube base, lower ebonite cylinder is installed on the lower rubber cylinder seat, upper ebonite cylinder, soft gum tube, lower ebonite cylinder is sleeved on the central tube from top to bottom successively, lower sleeve is sleeved on the central tube lower end and is threaded with lower contact, the thrust cylinder is connected and fixed by shear pin and lower contact inwall, and the O RunddichtringO is installed between thrust cylinder and the lower contact.
The beneficial effects of the utility model are: the utility model is owing to adopted the mode that the thrust cylinder is connected and fixed by shear pin and lower contact inwall, thereby the utility model is when being installed in two differential external packer of pipe tops and using, have sealing light pipe and protective casing annular space, the function of altering under the cement when effectively preventing from cementing the well, the well cementation effect of raising light pipe and protective casing superposition section.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is structural representation of the present utility model.
The specific embodiment:
As shown in drawings, a kind of Multilateral Wells completion mechanical compression type external packer of pipe comprises top connection 1, central tube 2 and lower contact 14; Top connection 1, central tube 2, thrust cylinder 11 is threaded in turn, upper bush 4 is sleeved on the central tube 2 and with top connection 1 and is connected, inverted-proof ring 3 is installed between top connection 1 and the upper bush 4, install glue tube base 5 and lower rubber cylinder seat 9 on the central tube 2, upper ebonite cylinder 6 is installed on the glue tube base 5, lower ebonite cylinder 8 is installed on the lower rubber cylinder seat 9, upper ebonite cylinder 6, soft gum tube 7, lower ebonite cylinder 8 is sleeved on the central tube 2 from top to bottom successively, lower sleeve 10 is sleeved on central tube 2 lower ends and is threaded with lower contact 14, thrust cylinder 11 is connected and fixed by shear pin 13 and lower contact 14 inwalls, between thrust cylinder 11 and the lower contact 14 O RunddichtringO 12 is installed.
Multilateral Wells main borehole completion is carried out upper solid lower when hanging operation, the utility model is installed on blind plate, two the differential external packer of pipe, under cementing device, float collar and the screen pipe hanger.When Multilateral Wells main borehole completion, suppress first two differential external packer of pipe packing elements are opened, seal up light pipe and protective casing annular space, then press down tubing string, shear pin 13 is cut off, top connection 1, central tube 2 and thrust cylinder 11 move down and promote inverted-proof ring 3, upper bush 4 and 5 compressions of upper glue tube base upper ebonite cylinder 6, soft gum tube 7 and lower ebonite cylinder 8, seal up annular space.Then screen pipe hanger is given up, and carries out next step cementing operation.
Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (1)
1. a Multilateral Wells completion mechanical compression type external packer of pipe comprises top connection (1), central tube (2) and lower contact (14); It is characterized in that: top connection (1), central tube (2), thrust cylinder (11) is threaded in turn, upper bush (4) is sleeved on central tube (2) and upward and with top connection (1) is connected, between top connection (1) and the upper bush (4) inverted-proof ring (3) is installed, install glue tube base (5) and lower rubber cylinder seat (9) on the central tube (2), upper ebonite cylinder (6) is installed on the glue tube base (5), lower ebonite cylinder (8) is installed on the lower rubber cylinder seat (9), upper ebonite cylinder (6), soft gum tube (7), lower ebonite cylinder (8) is sleeved on the central tube (2) from top to bottom successively, lower sleeve (10) is sleeved on central tube (2) lower end and is threaded with lower contact (14), thrust cylinder (11) is connected and fixed by shear pin (13) and lower contact (14) inwall, between thrust cylinder (11) and the lower contact (14) O RunddichtringO (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389746 CN202810771U (en) | 2012-08-07 | 2012-08-07 | Mechanical compression type pipe-outside packer for multilateral well completion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389746 CN202810771U (en) | 2012-08-07 | 2012-08-07 | Mechanical compression type pipe-outside packer for multilateral well completion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810771U true CN202810771U (en) | 2013-03-20 |
Family
ID=47869669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389746 Expired - Fee Related CN202810771U (en) | 2012-08-07 | 2012-08-07 | Mechanical compression type pipe-outside packer for multilateral well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437734A (en) * | 2013-09-22 | 2013-12-11 | 中国石油集团川庆钻探工程有限公司 | Packer structure |
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
-
2012
- 2012-08-07 CN CN 201220389746 patent/CN202810771U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437734A (en) * | 2013-09-22 | 2013-12-11 | 中国石油集团川庆钻探工程有限公司 | Packer structure |
| CN103437734B (en) * | 2013-09-22 | 2016-09-28 | 中国石油集团川庆钻探工程有限公司 | A kind of packer construction |
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Experimental device for rubber cylinder of compression packer |
| CN106639966A (en) * | 2016-11-28 | 2017-05-10 | 隆学武 | Shoulder protruding resistant rubber cylinder, packer and bridge plug |
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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: 20130320 Termination date: 20140807 |
|
| EXPY | Termination of patent right or utility model |