CN207093001U - A kind of bidirectional circulating flushing valve - Google Patents
A kind of bidirectional circulating flushing valve Download PDFInfo
- Publication number
- CN207093001U CN207093001U CN201720664201.0U CN201720664201U CN207093001U CN 207093001 U CN207093001 U CN 207093001U CN 201720664201 U CN201720664201 U CN 201720664201U CN 207093001 U CN207093001 U CN 207093001U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- pass prot
- flushing valve
- lower contact
- well
- 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
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 37
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of bidirectional circulating flushing valve, including top connection, sliding sleeve, lower contact, cut off, by-pass prot is provided with the side wall of top connection, the side wall of lower contact is provided with lower by-pass prot, the side wall of sliding sleeve is provided with inner via hole, the position of inner via hole is located at sliding sleeve and moved down when on the shoulder of lower contact hole, inner via hole is overlapping with lower by-pass prot to be communicated, sliding sleeve outer wall is provided with multiple " O " type sealing rings, when being closed for flushing valve, sealing between sliding sleeve and top connection and lower contact, in well-flushing valve closed mode, upper by-pass prot and lower by-pass prot block sealing by sliding sleeve, in flushing valve opening state, sliding sleeve moves down in lower contact hole shoulder, the lower section of by-pass prot is slipped at the top of sliding sleeve, by-pass prot is set to be communicated with well-flushing valve insertion, inner via hole is overlapping with lower by-pass prot to be communicated, lower by-pass prot is set to be communicated with well-flushing valve insertion.It is simple and reasonable for structure, two-way function can be effectively realized, can meet that test terminates the function of Posterior circle well-flushing, and can meets the function of balancing to descend pressure difference during removing seal for packer thereon.
Description
Technical field
A kind of flushing valve is the utility model is related to, especially a kind of bidirectional circulating flushing valve.
Background technology
Conventional flushing valve, using widely, when the test is finished, is thrown in deep-well, high temperature well formation testing in tubing string
Ball, suppress, cutting will be cut off, now circulation port is opened, and plays ringing.When due to pitching by lower tubular column on ball seat every
Open, confined space is formed in the tubing string under ball seat so that pressure difference be present with annular space in tubing string, the removing seal for packer at the end of test
Difficulty, it can not be unsealed when serious, cause abandoned well.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of bidirectional circulating flushing valve, solves deep-well, high temperature well
When pitching after test terminates circulates, while bypass passageways are opened, balance packer two-way pressure, packer being capable of proper solution
Envelope.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of bidirectional circulating flushing valve, bag
Include top connection, sliding sleeve, lower contact, cut off, the side wall of top connection is provided with by-pass prot, the side wall of lower contact is provided with lower bypass
Hole, the side wall of sliding sleeve are provided with inner via hole, and the position of inner via hole is located at sliding sleeve and moved down when on the shoulder of lower contact hole, and inner via hole is with
By-pass prot is overlapping to be communicated, and sliding sleeve outer wall is provided with multiple " O " type sealing rings, when being closed for flushing valve, sliding sleeve and top connection
Sealing between lower contact, in well-flushing valve closed mode, upper by-pass prot and lower by-pass prot block sealing by sliding sleeve, in flushing valve
Opening state, sliding sleeve move down the lower section for being slipped to by-pass prot at the top of sliding sleeve in lower contact hole shoulder, make by-pass prot with
Well-flushing valve insertion is communicated, and inner via hole is overlapping with lower by-pass prot to be communicated, and lower by-pass prot is communicated with well-flushing valve insertion.
" O " type sealing ring is provided with the shoulder of the lower contact hole.
The beneficial effects of the utility model are：Structure design is simple, reasonable, can effectively realize two-way function, Ji Nengman
Foot test terminates the function of Posterior circle well-flushing, and and can meets the function of balancing to descend pressure difference during removing seal for packer thereon.
Brief description of the drawings
Fig. 1 is the structural representation of bidirectional circulating flushing valve of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, bidirectional circulating flushing valve of the present utility model, including top connection 1, sliding sleeve 2, lower contact 3,4 are cut off,
The side wall of top connection 1 is provided with by-pass prot 7, the side wall of lower contact 3 is provided with lower by-pass prot 8, the side wall of sliding sleeve 2 is provided with inner via hole
9, the position of inner via hole 9 is located at sliding sleeve 2 and moved down when on the shoulder of lower contact hole, and inner via hole 9 is overlapping with lower by-pass prot 8 to be communicated,
The outer wall of sliding sleeve 2 is provided with multiple " O " type sealing rings 6, when being closed for flushing valve, between sliding sleeve 2 and top connection 1 and lower contact 3
Sealing, in well-flushing valve closed mode, upper by-pass prot 7 and lower by-pass prot 8 block sealing by sliding sleeve 2, in flushing valve opening state,
Sliding sleeve 2 moves down in lower contact hole shoulder, and the top of sliding sleeve 2 is slipped to the lower section of by-pass prot 7, makes by-pass prot 7 and well-flushing
Valve insertion is communicated, and inner via hole 9 is overlapping with lower by-pass prot 8 to be communicated, and lower by-pass prot 8 is communicated with well-flushing valve insertion.
" O " type sealing ring 10 is provided with the hole shoulder of lower contact 3.
Before non-pitching, bidirectional circulating flushing valve is closed, end to be tested, when need to open bypass reacting cycle,
Steel ball 5 is put into out of oil pipe, it is setting then to be suppressed on sliding sleeve 2 to oil pipe, during about 15Mpa, cut off 4.When sliding sleeve moves down
Fall when on lower contact hole shoulder " O " type sealing ring 10, upper by-pass prot 7, lower by-pass prot 8 are opened, and two-way well-flushing can be achieved.Well-flushing leads to
Road is available for circulation well cleanup at the end of test, and bypass passageways can balance the pressure difference above and below packer, and facility is provided for deblocking.
In summary, content of the present utility model is not limited in the above embodiments, in same area it is insighted it
Scholar can easily propose other embodiments within technological guidance's thought of the present utility model, but this embodiment is all wrapped
Include within the scope of the utility model.
Claims (2)
1. a kind of bidirectional circulating flushing valve, including top connection (1), sliding sleeve (2), lower contact (3), cut off (4), it is characterised in that
The side wall of top connection (1) is provided with upper by-pass prot (7), the side wall of lower contact (3) is provided with lower by-pass prot (8), the side wall of sliding sleeve (2)
Inner via hole (9) is provided with, the position of inner via hole (9) is located at sliding sleeve (2) and moved down when on the shoulder of lower contact hole, and inner via hole (9) is with
By-pass prot (8) is overlapping to be communicated, and sliding sleeve (2) outer wall is provided with multiple " O " type sealing rings (6), when being closed for flushing valve, sliding sleeve
(2) sealing between top connection (1) and lower contact (3), in well-flushing valve closed mode, upper by-pass prot (7) and lower by-pass prot (8)
Sealing is blocked by sliding sleeve (2), in flushing valve opening state, sliding sleeve (2) moves down in lower contact hole shoulder, the top of sliding sleeve (2)
The lower section of by-pass prot (7) is slipped to, by-pass prot (7) is communicated with well-flushing valve insertion, is made in lower by-pass prot (8) and flushing valve
Chamber communicates.
2. bidirectional circulating flushing valve according to claim 1, it is characterised in that be provided with the shoulder of lower contact (3) hole
" O " type sealing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720664201.0U CN207093001U (en) | 2017-06-08 | 2017-06-08 | A kind of bidirectional circulating flushing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720664201.0U CN207093001U (en) | 2017-06-08 | 2017-06-08 | A kind of bidirectional circulating flushing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093001U true CN207093001U (en) | 2018-03-13 |
Family
ID=61551886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720664201.0U Expired - Fee Related CN207093001U (en) | 2017-06-08 | 2017-06-08 | A kind of bidirectional circulating flushing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287693A (en) * | 2018-12-06 | 2020-06-16 | 中国石油天然气集团有限公司 | Well flushing tool with coiled tubing capable of realizing positive and negative circulation |
-
2017
- 2017-06-08 CN CN201720664201.0U patent/CN207093001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287693A (en) * | 2018-12-06 | 2020-06-16 | 中国石油天然气集团有限公司 | Well flushing tool with coiled tubing capable of realizing positive and negative circulation |
| CN111287693B (en) * | 2018-12-06 | 2022-06-03 | 中国石油天然气集团有限公司 | Well flushing tool with coiled tubing capable of realizing positive and negative circulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd., No. 83, Second Street, economic and Technological Development Zone, Binhai New Area, Tianjin, 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |