CN202047786U - Tail pipe composite rubber plug - Google Patents
Tail pipe composite rubber plug Download PDFInfo
- Publication number
- CN202047786U CN202047786U CN2011201530581U CN201120153058U CN202047786U CN 202047786 U CN202047786 U CN 202047786U CN 2011201530581 U CN2011201530581 U CN 2011201530581U CN 201120153058 U CN201120153058 U CN 201120153058U CN 202047786 U CN202047786 U CN 202047786U
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- CN
- China
- Prior art keywords
- rubber plug
- tail pipe
- plug
- mounting groove
- sleeve pipe
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of a well completion tail pipe rubber plug of a horizontal well, which is a tail pipe composite rubber plug. The tail pipe composite rubber plug comprises a rubber plug, a joint, a ball cup, a ball cup pin and a communicating sleeve. The inner side of the lower end of the joint is fixedly connected with the outer side of the upper end of the rubber plug via a shedding pin. The internal of the rubber plug is equipped with a through hole wide on the top and narrow at the bottom. The ball cup is fixedly arranged inside the lower part of the rubber plug via the ball cup pin. The communicating sleeve is fixedly arranged on the lower end of the rubber plug. The inner diameter of the through hole is matched with the inner diameter of the communicating sleeve. The outer wall of the communicating sleeve is equipped with a circulation hole. The tail pipe composite rubber plug is reasonable and compact in structure. According to the utility model, the ball cup is arranged inside the rubber plug instead of being connected with the lower part of a tail pipe hanger, so that the structure is simplified. The tail pipe composite rubber plug is more convenient in installation and usage.
Description
Technical field
The utility model relates to the completion tail pipe plug technical field of horizontal well, is a kind of tail pipe Compounded rubber plug.
Background technology
The completion mode of horizontal well is mainly cutting seam sieve tube completion, well cementation completion and barefoot completion; The oil recovery condition of production in back is found out the effect that the application level well development can obtain in fractured reservoir from going into operation; Liner completion can be saved sleeve pipe, reduces cost, simultaneously because the success rate height becomes present horizontal well completion method commonly used; When routine was implemented the tail pipe operation, the bottom of the center-pole of extension hanger hung the tail pipe plug, was connected to the ball seat that cooperates the tail pipe plug to use in the bottom of hanger, and installing and using of ball seat makes the extension hanger complex structure, installation inconvenience.
Summary of the invention
The utility model provides a kind of tail pipe Compounded rubber plug, has overcome the deficiency of above-mentioned prior art, and it can effectively solve owing to the extension hanger bottom is connected to ball seat and make the extension hanger complex structure, and the problem of inconvenience is installed.
The technical solution of the utility model realizes by following measure: a kind of tail pipe Compounded rubber plug comprises plug, joint, ball seat, ball seat pin and is communicated with sleeve pipe; The inboard outside, upper end with plug, the lower end of joint is installed together by the dowel fixes that comes off, and in plug inside through hole wide at the top and narrow at the bottom is arranged, and by the ball seat dowel fixes ball seat is installed in the bottom of plug; Be installed with the connection sleeve pipe in the lower end of plug, the internal diameter of through hole is corresponding with the internal diameter that is communicated with sleeve pipe, on the outer wall that is communicated with sleeve pipe opening is arranged.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
The external upper of above-mentioned ball seat can have the seal groove of annular, is installed with sealing ring in seal groove.
There is the seal groove of annular the inside of the above-mentioned joint corresponding with plug, is installed with sealing ring in seal groove.
But circumference is evenly distributed with three openings on the outer wall of above-mentioned connection sleeve pipe.
Can there be mounting groove the inboard, upper end of above-mentioned connection sleeve pipe, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug is fixedly mounted in the mounting groove by screw thread.
The utility model reasonable and compact in structure by ball seat is installed, can substitute the extension hanger seat of receiving in the bottom in plug; So just simplify the structure, install, use convenient.
Description of drawings
Accompanying drawing 1 is the half section structural representation of the utility model most preferred embodiment.
Coding in the accompanying drawing is respectively: 1 is plug, and 2 is joint, and 3 is ball seat, and 4 is the ball seat pin, and 5 for being communicated with sleeve pipe, and 6 is opening, and 7 is sealing ring, and 8 for coming off pin, and 9 is through hole.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relation of upper and lower, left and right etc. is what to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this tail pipe Compounded rubber plug comprises plug 1, joint 2, ball seat 3, ball seat pin 4 and is communicated with sleeve pipe 5; The inboard outside, upper end with plug 1, the lower end of joint 2 is fixedly installed togather by the pin 8 that comes off, there is through hole wide at the top and narrow at the bottom 9 plug 1 inside, be installed with ball seat 3 by ball seat pin 4 in the bottom of plug 1, be installed with connection sleeve pipe 5 in the lower end of plug 1, the internal diameter of through hole 9 is corresponding with the internal diameter that is communicated with sleeve pipe 5, on the outer wall that is communicated with sleeve pipe 5 opening 6 is arranged.
Can according to actual needs above-mentioned tail pipe Compounded rubber plug be made further optimization and/or improvements:
As shown in Figure 1, the seal groove of annular is arranged, in seal groove, be installed with sealing ring 7 in the external upper of ball seat 3; Like this, make plug 1 and ball seat 3 form confined space, thereby pressurize.
As shown in Figure 1, there is the seal groove of annular the inside of the joint 2 corresponding with plug 1, is installed with sealing ring 7 in seal groove; Like this, joint 2 and plug 1 are sealed, thereby pressurize.
As shown in Figure 1, circumference is evenly distributed with three openings 6 on the outer wall that is communicated with sleeve pipe 5.
As shown in Figure 1, there is mounting groove the inboard, upper end that is communicated with sleeve pipe 5, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug 1 is fixedly mounted in the mounting groove by screw thread.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: at first the upper end with joint 2 is connected with the center-pole lower end of extension hanger, connects the back G.I.H; Prepare a spheroid with the endoporus of plug 1 coupling, with the spheroid input, make spheroid arrive ball seat 3 along the through hole of plug 1, build the pressure then, seat extension hanger, continue again to build the pressure up to ball seat pin 4 is cut short after giving up, ball seat 3 is because the pressure effect, move down up to the bottom that is communicated with sleeve pipe 5, opening 7 is connected with the through hole of plug 1, implement the cementing well operation, squeeze into the drilling rod plug after the cemented up again and promote plug 1, cut off the pin 8 that comes off and walk to implement downwards to finish well cementing operation at last for the slurry operation.
Claims (9)
1. a tail pipe Compounded rubber plug is characterized in that comprising plug, joint, ball seat, ball seat pin and is communicated with sleeve pipe; The inboard outside, upper end with plug, the lower end of joint is installed together by the dowel fixes that comes off, and in plug inside through hole wide at the top and narrow at the bottom is arranged, and by the ball seat dowel fixes ball seat is installed in the bottom of plug; Be installed with the connection sleeve pipe in the lower end of plug, the internal diameter of through hole is corresponding with the internal diameter that is communicated with sleeve pipe, on the outer wall that is communicated with sleeve pipe opening is arranged.
2. tail pipe Compounded rubber plug according to claim 1 is characterized in that the external upper of ball seat has annular seal groove, is installed with sealing ring in seal groove.
3. tail pipe Compounded rubber plug according to claim 1 and 2 is characterized in that there is annular seal groove the inside of the joint of plug correspondence, is installed with sealing ring in seal groove.
4. tail pipe Compounded rubber plug according to claim 1 and 2 is characterized in that being communicated with that circumference is evenly distributed with three openings on the outer wall of sleeve pipe.
5. tail pipe Compounded rubber plug according to claim 3 is characterized in that being communicated with that circumference is evenly distributed with three openings on the outer wall of sleeve pipe.
6. tail pipe Compounded rubber plug according to claim 1 and 2 is characterized in that there is mounting groove the inboard, upper end that is communicated with sleeve pipe, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug is fixedly mounted in the mounting groove by screw thread.
7. tail pipe Compounded rubber plug according to claim 3 is characterized in that there is mounting groove the inboard, upper end that is communicated with sleeve pipe, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug is fixedly mounted in the mounting groove by screw thread.
8. tail pipe Compounded rubber plug according to claim 4 is characterized in that there is mounting groove the inboard, upper end that is communicated with sleeve pipe, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug is fixedly mounted in the mounting groove by screw thread.
9. tail pipe Compounded rubber plug according to claim 5 is characterized in that there is mounting groove the inboard, upper end that is communicated with sleeve pipe, on the inwall of mounting groove screw thread is arranged, and the outside, lower end of plug is fixedly mounted in the mounting groove by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201530581U CN202047786U (en) | 2011-05-15 | 2011-05-15 | Tail pipe composite rubber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201530581U CN202047786U (en) | 2011-05-15 | 2011-05-15 | Tail pipe composite rubber plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047786U true CN202047786U (en) | 2011-11-23 |
Family
ID=44988097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201530581U Expired - Fee Related CN202047786U (en) | 2011-05-15 | 2011-05-15 | Tail pipe composite rubber plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
-
2011
- 2011-05-15 CN CN2011201530581U patent/CN202047786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236220A (en) * | 2018-11-28 | 2019-01-18 | 中国石油集团工程技术研究院有限公司 | One kind is exempted to be buckled to rotary tail running tool and method |
| CN109236220B (en) * | 2018-11-28 | 2023-09-12 | 中国石油天然气集团有限公司 | Back-off-free rotary tail pipe running tool and method |
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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: 20111123 Termination date: 20160515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |