CN103397855B - A kind of drilling well removes the ball-type contact of tubular column slip - Google Patents
A kind of drilling well removes the ball-type contact of tubular column slip Download PDFInfo
- Publication number
- CN103397855B CN103397855B CN201310272870.XA CN201310272870A CN103397855B CN 103397855 B CN103397855 B CN 103397855B CN 201310272870 A CN201310272870 A CN 201310272870A CN 103397855 B CN103397855 B CN 103397855B
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- China
- Prior art keywords
- ball
- spring
- reset frame
- pressing plate
- tubing string
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- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 9
- 230000006378 damage Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
Drilling well removes a ball-type contact for tubular column slip, comprises body, pressing plate, bolt, reset frame, ball, spring.Screwed hole, ball spout, reset frame mounting groove and spring fitting groove is designed with in body.Pressing plate is designed with ball stopper slot, reset frame indent, spring indent and bolt hole.Body and pressing plate are located by seam, and connect with bolt, ball, reset frame and spring are limited in corresponding operating position simultaneously.There is an angle of wedge in the bottom surface of ball spout and column surface bus, during work, forms card and sit and self-locking between tubing string, ball and body.Slips in the course of the work, ball-type contact can not be nipped tubing string outer wall, the shortcoming that current slip dog application life is short, tubing string outer wall is had to damage can be solved well, and automatically prevent from tubing string pushes up by friction self-locking, there is great application value.The present invention is suitable for existing three or four-piece type slips.
Description
Technical field
The present invention relates to oil drill equipment technical field, particularly a kind of drilling well removes the ball-type contact of tubular column slip.
Technical background
Upper shackle operation in oil drilling or well workover process, need to use slips to block and hang and hold tubing string in well, slip dog is wherein its key components and parts, is the direct contact of slips and tubing string, plays key effect to the performance of slips, life-span and the degree of injury to tubing string.Conventional slip dog is tooth-like, and during work, dental lamina tooth can be nipped tubing string outer wall, causes damage to tubing string.Especially, in corrosivity well, the use of stainless-steel tubing pillar is comparatively general, and because this kind of column surface hardness is lower, the surface damage using dental lamina to cause is even more serious.Dental lamina tooth bite mark will reduce intensity and the application life of tubing string, increase oil and gas exploitation cost, even cause serious accident time serious.
Summary of the invention
In order to overcome the above-mentioned shortcoming of existing slip dog, the object of the present invention is to provide a kind of ball-type contact of slips, having that structure is simple, long service life, automatically prevent from tubing string pushing up, not producing at column surface the feature of bite mark by friction self-locking.
In order to achieve the above object, technical scheme of the present invention is achieved in that
Drilling well removes the ball-type contact of tubular column slip, comprises body 1 and pressing plate 2 suitable with it and bolt 3, reset frame 4, ball 5, spring 6; Screwed hole 8, ball spout 9, reset frame mounting groove 10 and spring fitting groove 11 is designed with in body 1.Pressing plate 2 is designed with bolt hole 15, ball stopper slot 12, reset frame indent 13, spring indent 14; Ball 5 is contained in ball spout 9, and reset frame 4 is contained in reset frame mounting groove 10, and spring 6 is arranged in spring fitting groove 11.Pressing plate 2 is located by seam with body 1, and is connect by screwed hole 8 and bolt hole 15 bolt 3.
There is an angle of wedge 7 in bottom surface and the surperficial bus of tubing string 16 of ball spout 9.
Under the elastic force effect of spring 6, ball 5 is suspended in the portion on the upper side of ball spout 9 by reset frame 4.Under the ball stopper slot 12 of design on pressing plate 2, reset frame indent 13, spring indent 14 act on, ensure that reset frame 4, ball 5 and spring 6 can not come off from body 1.
Use the present invention, the ball-type contact of slips in the course of the work, can avoid dentation dental lamina in the past directly nip tubing string outer wall situation occur, reduce the degree of injury to tubing string outer wall, the shortcoming that current slip dog application life is short, tubing string outer wall is had to damage can be solved well, and by self-locking and automatic preventing, tubing string pushes up, there is great application value.The present invention is suitable for existing three or four-piece type slips.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure schematic diagram of the present invention.
Fig. 2 is operating principle schematic diagram of the present invention.
Fig. 3 is body part three-dimensional structure schematic diagram of the present invention.
Fig. 4 is body part three-dimensional structure schematic diagram of the present invention.
Fig. 5 is laminate parts three-dimensional structure schematic diagram of the present invention.
Fig. 6 is reset frame part three-dimensional structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
With reference to Fig. 1-3, a kind of drilling well removes the ball-type contact of tubular column slip, comprises body 1 and pressing plate 2 suitable with it and bolt 3, reset frame 4, ball 5, spring 6; With reference to Fig. 4, in body 1, be designed with screwed hole 8, ball spout 9, reset frame mounting groove 10 and spring fitting groove 11; With reference to Fig. 5, pressing plate 2 is designed with corresponding bolt hole 15, ball stopper slot 12, reset frame indent 13 and spring indent 14; With reference to Fig. 1,3, ball 5 is contained in ball spout 9, and reset frame 4 is contained in reset frame mounting groove 10, and spring 6 is arranged in spring fitting groove 11.Under the elastic force effect of spring 6, ball 5 is suspended in the portion on the upper side of ball spout 9 by reset frame 4.Pressing plate 2 is located by seam with body 1, and is connect by screwed hole 8 and bolt hole 15 bolt 3.Under the ball stopper slot 12 of design on pressing plate 2, reset frame indent 13, spring indent 14 act on, ensure that reset frame 4, ball 5 and spring 6 can not come off from body 1.
With reference to Fig. 2, there is an angle of wedge 7 in bottom surface and the surperficial bus of tubing string 16 of ball spout 9.
Fig. 6 is the three-dimensional structure schematic diagram of reset frame 4 of the present invention, is a montant to be furnished with multiple cross bar, in order to keep the synchronous reset of whole ball.
With reference to Fig. 2,3, operating principle of the present invention is: before slips work, and under reset frame 4 and spring 6 act on, ball 5 is in the portion on the upper side of ball spout 9; When work starts, the outer wall of tubing string 16 contacts with ball 5, frictional force between them makes ball 5 rotate, and overcome spring 6 elastic force upwards and move downward, due to the effect of the angle of wedge 7, ball 5 is by more crowded tighter, final card to be sitting in the angle of wedge and to form self-locking, thus blocking tubing string, ball replaces the dental lamina in conventional slips directly to contact with tubing string, and the friction self-locking formed in the angle of wedge 7 by ball 5 also can prevent from tubing string pushes up automatically.After end-of-job, under the effect of reset frame 4 and spring 6, ball 5 returns to initial position.
Claims (2)
1. a drilling well removes the ball-type contact of tubular column slip, it is characterized in that, comprise body (1) and pressing plate suitable with it (2) and bolt (3), reset frame (4), ball (5), spring (6); Screwed hole (8), ball spout (9), reset frame mounting groove (10) and spring fitting groove (11) is designed with in body (1); Pressing plate (2) is designed with corresponding bolt hole (15), ball stopper slot (12), reset frame indent (13) and spring indent (14); Ball (5) is contained in ball spout (9), and reset frame (4) is contained in reset frame mounting groove (10), and spring (6) is arranged in spring fitting groove (11); Pressing plate (2) and body (1) are located by seam, and are connect by screwed hole (8) and bolt hole (15) bolt (3);
There is an angle of wedge (7) in the bottom surface of ball spout (9) and tubing string (16) surperficial bus;
Ball (5) forms friction self-locking structure in the angle of wedge (7);
Ball (5) forms ball automatic reset mechanism with reset frame (4) and spring (6).
2. a kind of drilling well according to claim 1 removes the ball-type contact of tubular column slip, it is characterized in that, pressing plate (2) and body (1) are located by seam, forms the load-relieving structure of bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272870.XA CN103397855B (en) | 2013-07-01 | 2013-07-01 | A kind of drilling well removes the ball-type contact of tubular column slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272870.XA CN103397855B (en) | 2013-07-01 | 2013-07-01 | A kind of drilling well removes the ball-type contact of tubular column slip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103397855A CN103397855A (en) | 2013-11-20 |
| CN103397855B true CN103397855B (en) | 2015-09-16 |
Family
ID=49561549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310272870.XA Expired - Fee Related CN103397855B (en) | 2013-07-01 | 2013-07-01 | A kind of drilling well removes the ball-type contact of tubular column slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103397855B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924935A (en) * | 2014-05-04 | 2014-07-16 | 南通金牛机械制造有限公司 | Slip insert tooth plate for drill stem |
| CN104018793B (en) * | 2014-06-26 | 2017-02-15 | 西南石油大学 | Inserted tooth and threaded slip insert plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305649B1 (en) * | 1998-06-05 | 2001-10-23 | Owen Walmsley | Retaining device |
| CN101636552A (en) * | 2007-01-04 | 2010-01-27 | 那伯斯环球控股有限公司 | Tubular handling device |
| CN102112697A (en) * | 2008-06-26 | 2011-06-29 | 第一海底有限公司 | Tubular handling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445050B2 (en) * | 2006-04-25 | 2008-11-04 | Canrig Drilling Technology Ltd. | Tubular running tool |
-
2013
- 2013-07-01 CN CN201310272870.XA patent/CN103397855B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305649B1 (en) * | 1998-06-05 | 2001-10-23 | Owen Walmsley | Retaining device |
| CN101636552A (en) * | 2007-01-04 | 2010-01-27 | 那伯斯环球控股有限公司 | Tubular handling device |
| CN102112697A (en) * | 2008-06-26 | 2011-06-29 | 第一海底有限公司 | Tubular handling device |
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| Publication number | Publication date |
|---|---|
| CN103397855A (en) | 2013-11-20 |
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| 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: 20150916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |