CN203403818U - Float collar for floating casing running of extended reach well - Google Patents
Float collar for floating casing running of extended reach well Download PDFInfo
- Publication number
- CN203403818U CN203403818U CN201320448226.9U CN201320448226U CN203403818U CN 203403818 U CN203403818 U CN 203403818U CN 201320448226 U CN201320448226 U CN 201320448226U CN 203403818 U CN203403818 U CN 203403818U
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- CN
- China
- Prior art keywords
- valve
- float collar
- valve base
- support
- extended reach
- 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 tool for floating casing running of an extended reach well of an oil field, in particular to a float collar for floating casing running of the extended reach well. A through hole is formed in the center of a valve base of the float collar. The side face of the valve base is connected with the inner wall of a float collar outer shell through bearing threads and is sealed through two O-shaped seal rings. The upper end of the valve base is provided with a diversion groove and an anti-rotation mechanism. A support is connected to the lower end of the valve base in a threaded mode and fixed through an anti-falling screw. A spring is installed to the lower end of a valve. The valve can vertically move on the support. A rubber seal ring is arranged between the valve base and the support and sealing can be achieved through the rubber seal ring and the valve. The valve base and the valve are made of aluminum alloy. The float collar for floating casing running of the extended reach well is good in anti-pressure ability, good in sealing performance, and capable of improving the drillability of a valve body, preventing an inner sliding casing of the float collar from blocking the through hole, avoiding rotation of the sliding casing of the float collar in the process of drilling and plugging, and overcoming the defect that an existing float collar is poor in anti-pressure ability and sealing performance.
Description
Technical field:
The utility model relates to the floating casing appliances of a kind of oil field extended reach well, particularly the floating setting of casing float collar of a kind of extended reach well.
Background technology:
Extended reach well is due to horizontal segment length, during setting of casing mill resistance large, use conventional Casing running technology often to cause sleeve pipe to put in place under can not be smoothly, to well cementing operation, bring difficulty, use floating Casing running technology can solve the problem that extended horizontal well sleeve pipe is difficult to be lowered to.Yet existing float collar anti-pressure ability is little, poor sealing performance, can not meet floating setting of casing requirement.
Utility model content:
The technical problems to be solved in the utility model is to provide the floating setting of casing float collar of a kind of extended reach well, it is large that this device has been realized anti-pressure ability, and good seal performance improves valve body drillability, prevent that the inner sliding sleeve of floating coupling from stopping up through hole, prevent that floating coupling from sliding over rotation while boring plug.Overcome that existing float collar anti-pressure ability is little, the deficiency of poor sealing performance.
Technical solution adopted in the utility model is: the floating setting of casing float collar of a kind of extended reach well, comprises valve base, support, valve and float collar shell; In the middle of valve base, there is through hole, valve base side is connected with float collar outer casing inner wall by pressure-bearing screw thread and seals by two O RunddichtringOs, valve base upper end is designed with guiding gutter and rotation-preventing mechanism, support is threaded in valve base lower end and fixes by anti-loosing screw, valve lower end mounting spring, valve can move up and down on support, and rubber seal is arranged between valve base and support and can forms sealing with valve, and valve base and valve adopt alloy aluminum manufacture.
The beneficial effects of the utility model are: it is large that the utility model has been realized anti-pressure ability, and good seal performance improves valve body drillability, prevent that the inner sliding sleeve of floating coupling from stopping up through hole, prevent that floating coupling from sliding over rotation while boring plug.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, the floating setting of casing float collar of a kind of extended reach well, comprises valve base 1, support 2, valve 3 and float collar shell 7; In the middle of valve base 1, there are through hole, valve base 1 side to be connected with float collar shell 7 inwalls by pressure-bearing screw thread and pass through 6 sealings of two O RunddichtringOs, good seal performance; Valve base 1 upper end is designed with guiding gutter 9 and rotation-preventing mechanism, prevents that the inner sliding sleeve of floating coupling from stopping up through hole, prevents that floating coupling from sliding over rotation while boring plug.Support 2 is threaded in valve base 1 lower end fixing by anti-loosing screw 8, valve 3 lower end mounting spring 5, valve 3 can move up and down on support 2, rubber seal 4 is arranged between valve base 1 and support 2 and can forms sealing with valve 3, valve base 1 and valve 3 adopt alloy aluminum manufacture, improve valve body drillability.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (1)
1. the floating setting of casing float collar of extended reach well, comprises valve base (1), support (2), valve (3) and float collar shell (7), it is characterized in that: in the middle of valve base (1), have through hole, valve base (1) side is connected with float collar shell (7) inwall by pressure-bearing screw thread and passes through two O RunddichtringOs (6) sealing, valve base (1) upper end is designed with guiding gutter (9) and rotation-preventing mechanism, support (2) is threaded in valve base (1) lower end fixing by anti-loosing screw (8), valve (3) lower end mounting spring (5), valve (3) can move up and down on support (2), rubber seal (4) is arranged between valve base (1) and support (2) and can forms sealing with valve (3), valve base (1) and valve (3) adopt alloy aluminum manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448226.9U CN203403818U (en) | 2013-07-25 | 2013-07-25 | Float collar for floating casing running of extended reach well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448226.9U CN203403818U (en) | 2013-07-25 | 2013-07-25 | Float collar for floating casing running of extended reach well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203403818U true CN203403818U (en) | 2014-01-22 |
Family
ID=49939757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320448226.9U Expired - Fee Related CN203403818U (en) | 2013-07-25 | 2013-07-25 | Float collar for floating casing running of extended reach well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203403818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275408A (en) * | 2014-06-24 | 2016-01-27 | 中国石油化工股份有限公司 | Float collar |
| CN108060909A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of extended reach well floats effective blind plugging device of trapping |
-
2013
- 2013-07-25 CN CN201320448226.9U patent/CN203403818U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275408A (en) * | 2014-06-24 | 2016-01-27 | 中国石油化工股份有限公司 | Float collar |
| CN108060909A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of extended reach well floats effective blind plugging device of trapping |
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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: 20140122 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |