CN201474663U - Ball seat open type bypass valve pocket - Google Patents
Ball seat open type bypass valve pocket Download PDFInfo
- Publication number
- CN201474663U CN201474663U CN2009201625955U CN200920162595U CN201474663U CN 201474663 U CN201474663 U CN 201474663U CN 2009201625955 U CN2009201625955 U CN 2009201625955U CN 200920162595 U CN200920162595 U CN 200920162595U CN 201474663 U CN201474663 U CN 201474663U
- Authority
- CN
- China
- Prior art keywords
- ball seat
- sliding sleeve
- slope
- top connection
- lower contact
- 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 ball seat open type bypass valve pocket used for operations such as completion, oil extraction, production increasing and the like of special complicated wells such as horizontal wells, lateral wells and the like, which solves the problems that general control tools have large opening pressure and are not easy to control. A plurality of hydraulic holes are evenly distributed at the circumference of the upper part of a body (2); and under the hydraulic holes, the inner wall of the body (2) is provided with an upper group of slope grooves and a lower group of slope grooves which are evenly distributed at the circumference. A sliding sleeve (4) is positioned in an inner chamber of the body (2) between an upper contact and a lower contact; a slope boss at the lower part of the sliding sleeve (4) is matched with one of the two groups of slope grooves at the inner wall of the body (2); the upper part of a ball seat (3) is evenly divided into a plurality of spline teeth along the circumferential direction, and the spline teeth contract in the shape of a claw; the spline teeth of the ball seat (3) is matched with a horn mouth at the inner part of the upper contact (1); and the bottom of the ball seat (3) is matched with inner steps at the upper part of the sliding sleeve (4). The ball seat open type bypass valve pocket can be opened and closed repeatedly so as to realize the effective control on a switch in a pipe or an annulus switch, has simple operation process and low operation pressure.
Description
Technical field
The utility model relates to completion, oil recovery, the stimulation work instrument of special complicated wells such as a kind of horizontal well, Multilateral Wells, particularly a kind of ball seat opening type bypass valve pocket.
Background technology
The mixed branch of adopting at exceptional wells such as Multilateral Wells is adopted, is controlled in the construction operation processes such as water blocking water, reservoir reconstruction, often need be to the independent control of branch well hole and main borehole.This construction technology needs a kind of can being used with packer and switch repeatedly, does not influence the instrument that the later stage tubing string such as is lowered at construction operation.And conventional control tool need be cut off pin when opening for the first time, and this instrument opening pressure is big and be difficult for grasp, and the complicated reliability of tool construction is low.
Summary of the invention
In order to solve the problem that exists in the background technology, the utility model provides a kind of ball seat opening type bypass valve pocket.
A kind of ball seat opening type bypass valve pocket mainly is made up of top connection, body, ball seat, sliding sleeve, lower contact.Body links to each other with top connection, lower contact respectively at two ends up and down, and end face gos deep into chamber body respectively in top connection bottom surface and the lower contact; Body top is evenly distributed in some hydraulic pressure hole; Under the hydraulic pressure hole, have the slope groove of two groups of circumference uniform distributions up and down on the inner body wall between top connection, the lower contact; The distance of hydraulic pressure hole and top connection bottom surface is smaller or equal to the distance between two groups of slope grooves on the body on the inner body wall.The chamber body of sliding sleeve between top connection, lower contact; Sliding sleeve its underpart is evenly distributed in one group of slope boss, and one of two groups of slope grooves of this slope boss and inner body wall form and cooperate.The ball seat diameter is up-small and down-big, and its top is claw-like and shrinks along circumferentially being evenly divided into several key teeth; Ball seat key tooth matches with the inner horn mouth of top connection, and the ball seat bottom cooperates with step formation in the sliding sleeve top.
The utility model major advantage is: simple in structure, easy operating, tool reliability height.Can be used with packer, repeatedly switch realize in managing with effective control of the switch of annular space, ball seat need not to drop down onto the shaft bottom, does not influence the later stage tubing string and construction operation such as is lowered to, operating procedure is simple, operational pressure is low.
Description of drawings
Fig. 1 the utility model structural representation
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
A kind of as shown in Figure 1 ball seat opening type bypass valve pocket mainly is made up of top connection (1), body (2), ball seat (3), sliding sleeve (4), lower contact (5).Body links to each other with top connection (1), lower contact (5) respectively at two ends up and down, and end face gos deep into body (2) inner chamber respectively in top connection (1) bottom surface and the lower contact (5); Body (2) top is evenly distributed in some hydraulic pressure hole; Under the hydraulic pressure hole, have the slope groove of two groups of circumference uniform distributions up and down on body (2) inwall between top connection (1), the lower contact (5); The distance of hydraulic pressure hole and top connection (1) bottom surface is smaller or equal to the distance between the last two groups of slope grooves of body (2) on body (2) inwall.Sliding sleeve (4) is positioned at the chamber body between top connection (1), the lower contact (5); Sliding sleeve (4) its underpart is evenly distributed in one group of slope boss, and one of two groups of slope grooves of this slope boss and body (2) inwall form and cooperate.Ball seat (3) diameter is up-small and down-big, and its top is claw-like and shrinks along circumferentially being evenly divided into several key teeth; Ball seat (3) key tooth matches with the inner horn mouth of top connection (1), and ball seat (3) bottom cooperates with step formation in sliding sleeve (4) top.
When the utility model used: the tool string that the utility model and packer etc. is used was coupled on the tubing string, and down to the design level position, at this moment, one group of slope of slope boss on the sliding sleeve (4) and body (2) upper interior groove forms and cooperates.Pitching and turn on pump circulation, seat begins to build the pressure to ball seat (3) when ball is circulated to ball seat (3), and descending at effect lower ball base (3) the drive sliding sleeve (4) of hydraulic coupling, ball seat (3) key tooth opens along top connection (1) horn mouth, and open gradually in body (2) hydraulic pressure hole.When sliding sleeve (4) continues descendingly below slope boss wedging body (2) inner chamber during one group of slope groove, sliding sleeve (4) is spacing by lower contact (6) institute, and open to maximum in body (2) hydraulic pressure hole.Ball seat (3) key tooth is flared to the pitching external diameter along top connection (1) horn mouth under the effect of ball, ball falls to the shaft bottom, opens operation and finishes.
After this, when needs opening and closing body (2) side opening, can be lowered to special tool(s) and act on sliding sleeve (4), sliding sleeve (4) be formed at top connection (1), lower contact (6) and body (2) inner chamber move up and down between the ring-shaped step, realize the opening and closing in body (2) hydraulic pressure hole.
Claims (1)
1. a ball seat opening type bypass valve pocket mainly is made up of top connection (1), body (2), ball seat (3), sliding sleeve (4), lower contact (5); It is characterized in that: body links to each other with top connection (1), lower contact (5) respectively at two ends up and down, and end face gos deep into body (2) inner chamber respectively in top connection (1) bottom surface and the lower contact (5); Body (2) top is evenly distributed in some hydraulic pressure hole; Have the slope groove of two groups of circumference uniform distributions up and down on body (2) inwall between top connection under the hydraulic pressure hole (1), the lower contact (5); The distance of hydraulic pressure hole and top connection (1) bottom surface is smaller or equal to the distance between the last two groups of slope grooves of body (2) on body (2) inwall; Sliding sleeve (4) is positioned at the chamber body between top connection (1), the lower contact (5); Sliding sleeve (4) its underpart is evenly distributed in one group of slope boss, and one of two groups of slope grooves of this slope boss and body (2) inwall form and cooperate; Ball seat (3) diameter is up-small and down-big, and its top is claw-like and shrinks along circumferentially being evenly divided into several key teeth; Ball seat (3) key tooth matches with the inner horn mouth of top connection (1), and ball seat (3) bottom cooperates with step formation in sliding sleeve (4) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201625955U CN201474663U (en) | 2009-08-15 | 2009-08-15 | Ball seat open type bypass valve pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201625955U CN201474663U (en) | 2009-08-15 | 2009-08-15 | Ball seat open type bypass valve pocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474663U true CN201474663U (en) | 2010-05-19 |
Family
ID=42410911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201625955U Expired - Fee Related CN201474663U (en) | 2009-08-15 | 2009-08-15 | Ball seat open type bypass valve pocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178912A (en) * | 2014-06-18 | 2015-12-23 | 中国石油化工股份有限公司 | Bypass valve for drilling tools |
| CN105221104A (en) * | 2015-10-14 | 2016-01-06 | 中国石油集团长城钻探工程有限公司 | The continuous indexing mechanism of a kind of oil drilling ball-throwing type |
| CN109184604A (en) * | 2018-09-26 | 2019-01-11 | 中石化石油机械股份有限公司 | The novel ball-type of one kind repeatedly activates down-hole by-pass valve and its system and application method |
-
2009
- 2009-08-15 CN CN2009201625955U patent/CN201474663U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178912A (en) * | 2014-06-18 | 2015-12-23 | 中国石油化工股份有限公司 | Bypass valve for drilling tools |
| CN105178912B (en) * | 2014-06-18 | 2018-03-30 | 中国石油化工股份有限公司 | A kind of drilling tool by-passing valve |
| CN105221104A (en) * | 2015-10-14 | 2016-01-06 | 中国石油集团长城钻探工程有限公司 | The continuous indexing mechanism of a kind of oil drilling ball-throwing type |
| CN109184604A (en) * | 2018-09-26 | 2019-01-11 | 中石化石油机械股份有限公司 | The novel ball-type of one kind repeatedly activates down-hole by-pass valve and its system and application method |
| CN109184604B (en) * | 2018-09-26 | 2020-07-28 | 中石化石油机械股份有限公司 | Novel one-ball type multi-activation underground bypass valve and system and using method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20160815 |