CN204920897U - From irritating interpolation formula float collar - Google Patents
From irritating interpolation formula float collar Download PDFInfo
- Publication number
- CN204920897U CN204920897U CN201520646240.9U CN201520646240U CN204920897U CN 204920897 U CN204920897 U CN 204920897U CN 201520646240 U CN201520646240 U CN 201520646240U CN 204920897 U CN204920897 U CN 204920897U
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- piston
- interior pipe
- inner chamber
- inner tube
- float collar
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Abstract
The utility model discloses a from irritating interpolation formula float collar, including casing, inner tube, inserted head, piston, adapter sleeve and the basket of flowers, wherein the inner tube passes through to establish in the inner chamber of casing after the adapter sleeve is connected with the basket of flowers, inserts in the inner chamber of inner tube and is equipped with inserted head and piston, and the inserted head can promote the piston and move in the inner chamber of inner tube, has offered the circulation hole on the lateral wall of inner tube, answers with the circulation pore pair and has offered the through -hole on the piston of position, inserts in the inner chamber of the basket of flowers and inner tube intercommunication and is equipped with sealed axle, and sealed epaxial cover is equipped with the spring. Beneficial effect: simple structure, safe and reliable has greatly reduced the cost of case, is showing and is improving speed and security that the sleeve pipe was gone into the well.
Description
Technical field
The utility model relates to a kind of float collar, and particularly one is from filling with interpolation type float collar.
Background technology
At present, in the well cementing process of oil exploitation, float collar is arranged on more than the guide shoe bottom bunch tube, makes cement injection terminate cement paste when rear annular space head of liquid is greater than head of liquid in sleeve pipe and does not flow backwards, thus control cement plug length in sleeve pipe.For ensureing sleeve pipe internal and external pressure balance, in casing job, often descend one group of sleeve pipe all must to be in the milk circulation, during major diameter casing cementing, adopt insertion well shaft fixing technology, can reduce cement paste in sleeve pipe with the blending of drilling fluid, shorten and replace the drilling fluid time, meanwhile, cement paste can return out in advance, thus reduces the waste and contaminated environment that cause because additional cement amount is excessive.
Existing self-filling-type float collar only can be applied to conventional cementing operation, cannot meet the demand of insertion well cementation, so both add human and material resources cost, cause again setting of casing efficiency low.
Summary of the invention
The purpose of this utility model is the demand that cannot meet insertion well cementation in order to solve existing self-filling-type float collar, the increase cost caused and reduce the problem of setting of casing efficiency and the one that provides from filling with interpolation type float collar.
What the utility model provided includes housing, interior pipe, female connector, piston, adapter sleeve and the gaily decorated basket from filling with interpolation type float collar, wherein interior pipe is located in the inner chamber of housing after being connected with the gaily decorated basket by adapter sleeve, female connector and piston is inserted with in the inner chamber of interior pipe, female connector can promote piston and move in the inner chamber of interior pipe, the sidewall of interior pipe offers circulation port, through hole is offered with on the piston of circulation port correspondence position, be inserted with seal shaft in the inner chamber that the gaily decorated basket is communicated with interior pipe, seal shaft is arranged with spring.
The first sealing ring is provided with between the outer wall of interior pipe and the inwall of housing.
Piston is provided with self-locking jump ring, can be connected on adapter sleeve after descent of piston by self-locking jump ring, is provided with the second sealing ring between the inwall of piston outer wall and interior pipe.
Operating principle of the present utility model:
In setting of casing process, drilling fluid enters in sleeve pipe by circulation port, to reach the object from grouting.After having descended sleeve pipe, under enter with in female connector manage, female connector promote piston close circulation port, piston has self-locking jump ring, can prevent circulation port from being washed open by pressure.During the drifting of turn on pump circulating fluid, be set in the spring-compressed on seal shaft, seal shaft is descending, and after termination of pumping, spring recovers, and circulation canal is closed, and recovers normal from filling with interpolation type float collar.
The beneficial effects of the utility model:
Structure is simple, safe and reliable, significantly reduces cased cost, significantly improves speed and safety that sleeve pipe goes into the well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, housing 2, interior pipe 3, female connector 4, piston 5, adapter sleeve 6, the gaily decorated basket
7, circulation port 8, through hole 9, seal shaft 10, spring 11, first sealing ring
12, self-locking jump ring 13, second sealing ring.
Detailed description of the invention
Refer to shown in Fig. 1:
What the utility model provided includes housing 1, interior pipe 2, female connector 3, piston 4, adapter sleeve 5 and the gaily decorated basket 6 from filling with interpolation type float collar, wherein interior pipe 2 is located in the inner chamber of housing 1 after being connected with the gaily decorated basket 6 by adapter sleeve 5, female connector 3 and piston 4 is inserted with in the inner chamber of interior pipe 2, female connector 3 can promote piston 4 and move in the inner chamber of interior pipe 2, the sidewall of interior pipe 2 offers circulation port 7, through hole 8 is offered with on the piston 4 of circulation port 7 correspondence position, be inserted with seal shaft 9 in the inner chamber that the gaily decorated basket 6 is communicated with interior pipe 2, seal shaft 9 be arranged with spring 10.
The first sealing ring 11 is provided with between the outer wall of interior pipe 2 and the inwall of housing 1.
Piston 4 is provided with self-locking jump ring 12, can be connected on adapter sleeve 5 after piston 4 is descending by self-locking jump ring 12, is provided with the second sealing ring 13 between the inwall of piston 4 outer wall and interior pipe 2.
Operating principle of the present utility model:
In setting of casing process, drilling fluid enters in sleeve pipe by circulation port 7, to reach the object from grouting.After having descended sleeve pipe, under enter with pipe 2 in female connector 3, female connector 3 promotes piston 4 and closes circulation port 7, piston 4 has self-locking jump ring 12, can prevent circulation port 7 from being washed open by pressure.During the drifting of turn on pump circulating fluid, the spring 10 be set on seal shaft 9 compresses, and seal shaft 9 is descending, and after termination of pumping, spring 10 recovers, and circulation canal is closed, and recovers normal from filling with interpolation type float collar.
Claims (3)
1. certainly fill with interpolation type float collar for one kind, it is characterized in that: include housing, interior pipe, female connector, piston, adapter sleeve and the gaily decorated basket, wherein interior pipe is located in the inner chamber of housing after being connected with the gaily decorated basket by adapter sleeve, female connector and piston is inserted with in the inner chamber of interior pipe, female connector can promote piston and move in the inner chamber of interior pipe, the sidewall of interior pipe offers circulation port, through hole is offered with on the piston of circulation port correspondence position, be inserted with seal shaft in the inner chamber that the gaily decorated basket is communicated with interior pipe, seal shaft is arranged with spring.
2. one according to claim 1 is from filling with interpolation type float collar, it is characterized in that: be provided with the first sealing ring between the outer wall of described interior pipe and the inwall of housing.
3. one according to claim 1 is from filling with interpolation type float collar, it is characterized in that: described piston is provided with self-locking jump ring, can be connected on adapter sleeve by self-locking jump ring after descent of piston, between the inwall of piston outer wall and interior pipe, be provided with the second sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646240.9U CN204920897U (en) | 2015-08-25 | 2015-08-25 | From irritating interpolation formula float collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646240.9U CN204920897U (en) | 2015-08-25 | 2015-08-25 | From irritating interpolation formula float collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920897U true CN204920897U (en) | 2015-12-30 |
Family
ID=54970034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520646240.9U Active CN204920897U (en) | 2015-08-25 | 2015-08-25 | From irritating interpolation formula float collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920897U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863555A (en) * | 2016-04-26 | 2016-08-17 | 中国石油大学(华东) | Casing pipe float collar device for reverse circulation well cementation |
| CN108868651A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of completion tubular column |
| CN109057732A (en) * | 2018-09-30 | 2018-12-21 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of slurry type grouting circulator and its application method |
-
2015
- 2015-08-25 CN CN201520646240.9U patent/CN204920897U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863555A (en) * | 2016-04-26 | 2016-08-17 | 中国石油大学(华东) | Casing pipe float collar device for reverse circulation well cementation |
| CN105863555B (en) * | 2016-04-26 | 2018-10-16 | 中国石油大学(华东) | A kind of reacting cycle well cementing casing pipe float collar device |
| CN108868651A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of completion tubular column |
| CN109057732A (en) * | 2018-09-30 | 2018-12-21 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of slurry type grouting circulator and its application method |
| CN109057732B (en) * | 2018-09-30 | 2023-11-07 | 中国石油天然气集团有限公司 | Slurry type grouting circulating device and using method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |