CN203296750U - Extension-type valving ball seat - Google Patents
Extension-type valving ball seat Download PDFInfo
- Publication number
- CN203296750U CN203296750U CN2013203036792U CN201320303679U CN203296750U CN 203296750 U CN203296750 U CN 203296750U CN 2013203036792 U CN2013203036792 U CN 2013203036792U CN 201320303679 U CN201320303679 U CN 201320303679U CN 203296750 U CN203296750 U CN 203296750U
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- ball seat
- seat body
- utility
- elongated slots
- model
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Abstract
The utility model relates to an extension-type valving ball seat which comprises a cylindrical ball seat body, wherein at least two elongated slots penetrating through each side wall is arranged on each side wall at the upper end of the ball seat body, and a valving jaw is formed on the side wall between every two adjacent elongated slots; the elongated slots are parallel with the axis of the ball seat body. Compared with the prior art, the extension-type valving ball seat not only can achieve a basic function of the ball seat but also can guarantee smoothness of a central channel of a tubular column.
Description
Technical field
The utility model relates to a kind of oil field well kit, specifically a kind of telescopic type distinguish ball seat.
Background technology
When oilfield downhole operation, often use ball seat.Ball seat is mainly used in pitching and suppresses set packer.Existing ball seat after packer setting, may be struck off and fall shaft bottom, repeatedly can cause bottom hole falling article to pile up and then impact production after construction; Also may be left in tubing string, make steel ball all the time on ball seat, thus shutoff the central passage of tubing string affect other job execution.Be especially that ball seat can't be fallen shaft bottom in some special operation, keep again the central passage of tubing string unimpeded.Existing ball seat can't be realized above-mentioned requirement.
The utility model content
In view of the above-mentioned problems in the prior art, main purpose of the present utility model is to provide a kind of telescopic type distinguish ball seat of dependable performance, to address the deficiencies of the prior art.
For achieving the above object, the utility model provides a kind of telescopic type distinguish ball seat, comprise cylindrical circular ball seat body, the upper end sidewall of described ball seat body is provided with at least two elongated slots that connect sidewall, makes the sidewall between every adjacent two elongated slots form a minute claw; Described elongated slot is parallel with the axis of ball seat body.
Wherein, the spacing between every adjacent two elongated slots equates.
As preferably, described telescopic type distinguish ball seat adopts spring steel to make.
Compared with prior art, the beneficial effect of the technical scheme that the utility model provides is: can realize the basic function of ball seat, can guarantee again central passage unimpeded of tubing string.
Description of drawings
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is for installing the sectional view of downhole tool of the present utility model.
Fig. 3 is the sectional view in A-A cross section in Fig. 1.
Referring to Fig. 1,1 is the ball seat sealing surface, and 2 are a minute claw, and 3 is elongated slot, and 4 is the ball seat body.
Referring to Fig. 3,5 are the necking down shoulder.
The specific embodiment
, in order to make the purpose of this utility model, technical scheme and effect clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Referring to Fig. 1 and Fig. 3, that Fig. 1 and Fig. 3 show is a better feasible embodiment of the present utility model.Ball seat body 4 is cylindrical; Offer equably eight elongated slots 3 on the sidewall of ball seat body 4, make the sidewall of ball seat body 4 between every adjacent two elongated slots 3 form a minute claw 2.Divide claw 2 to produce elastic deformation due to the ductility of metal.Gather while being contracted in together the function that just possesses ball seat because of external force when minute claw 2; Can automatically restore to free state after removing the constraint of external force.
, referring to Fig. 1, on ball seat body 4, ball seat sealing surface 1 can be installed as required.Referring to Fig. 2, the utility model is arranged in corresponding tool with necking down shoulder 5; And being provided with ball seat sealing surface 1 perpendicular to its axis in ball seat body 4 upper ends, described ball seat sealing surface 1 is stuck between 8 minutes claws 2.After installation, minute claw 2 is because necking shoulder 5 extruding are gathered; The function that has just possessed ball seat after dividing claw 2 to be contracted in together.During work, to dropping into diameter in tubing string, be slightly less than the steel ball of ball seat body 4 internal diameters, steel ball is sitting on ball seat sealing surface 1, then steel ball is suppressed, and promotes the utility model descending under hydraulic action.The utility model after skidding off necking down shoulder 5, a minute claw 2 free state of can rebounding, steel ball from inside of the present utility model by and fall in tail pipe, thereby get out of the way central passage.
The foregoing is only a better feasible embodiment of the present utility model; described embodiment is not in order to limit scope of patent protection of the present utility model; therefore the equivalent structure done of every utilization manual of the present utility model and accompanying drawing content changes, within like manner all should being included in protection domain of the present utility model.
Claims (2)
1. telescopic type distinguish ball seat, comprise cylindrical circular ball seat body (4), it is characterized in that: the upper end sidewall of described ball seat body (4) is provided with at least two elongated slots (3) that connect sidewall, makes the sidewall between every adjacent two elongated slots (3) form a minute claw (2); Described elongated slot (3) is parallel with the axis of ball seat body (4).
2. a kind of telescopic type distinguish ball seat according to claim 1 is characterized in that: the spacing between every adjacent two elongated slots (3) equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203036792U CN203296750U (en) | 2013-05-29 | 2013-05-29 | Extension-type valving ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203036792U CN203296750U (en) | 2013-05-29 | 2013-05-29 | Extension-type valving ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296750U true CN203296750U (en) | 2013-11-20 |
Family
ID=49572768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203036792U Expired - Lifetime CN203296750U (en) | 2013-05-29 | 2013-05-29 | Extension-type valving ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296750U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389573A (en) * | 2014-09-23 | 2015-03-04 | 中国石油天然气股份有限公司 | Inside-bushing staged fracturing fall ball seat type sliding sleeve |
| CN105507868A (en) * | 2014-09-26 | 2016-04-20 | 中国石油化工股份有限公司 | Ball seat of ball injection activated sliding sleeve, manufacture method of ball seat and sliding sleeve |
| CN106481311A (en) * | 2015-08-27 | 2017-03-08 | 中国石油化工股份有限公司 | Ball-throwing type sliding sleeve and fracturing string |
-
2013
- 2013-05-29 CN CN2013203036792U patent/CN203296750U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389573A (en) * | 2014-09-23 | 2015-03-04 | 中国石油天然气股份有限公司 | Inside-bushing staged fracturing fall ball seat type sliding sleeve |
| CN105507868A (en) * | 2014-09-26 | 2016-04-20 | 中国石油化工股份有限公司 | Ball seat of ball injection activated sliding sleeve, manufacture method of ball seat and sliding sleeve |
| CN105507868B (en) * | 2014-09-26 | 2018-08-03 | 中国石油化工股份有限公司 | Ball seat, its manufacturing method and the sliding sleeve of pitching opening type sliding sleeve |
| CN106481311A (en) * | 2015-08-27 | 2017-03-08 | 中国石油化工股份有限公司 | Ball-throwing type sliding sleeve and fracturing string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |