CN202194605U - Hand release device for casing patch reinforcement - Google Patents
Hand release device for casing patch reinforcement Download PDFInfo
- Publication number
- CN202194605U CN202194605U CN2011202152585U CN201120215258U CN202194605U CN 202194605 U CN202194605 U CN 202194605U CN 2011202152585 U CN2011202152585 U CN 2011202152585U CN 201120215258 U CN201120215258 U CN 201120215258U CN 202194605 U CN202194605 U CN 202194605U
- Authority
- CN
- China
- Prior art keywords
- hand
- release device
- casing patch
- hand release
- lock pawl
- 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 hand release device for casing patch reinforcement, which resolves the problem that an existing casing patch reinforcement tool is prone to no release of the hand. The hand release device for the casing patch reinforcement comprises a piston, a shear pin, an outer sleeve, an inner sleeve, a lock claw and a plug. A special roll ball line contact mechanism is disposed on the inner sleeve. The hand release device for the casing patch reinforcement has the advantages of being high in hand release rate, stable and reliable and is mainly used in devices for casing repair of oil gas wells.
Description
Technical field
The utility model relates to a kind of member that is used for the device of oil gas water well sleeve pipe reparation, and releasing device is reinforced in particularly a kind of casing patching.
Background technology
The reinforcing of casing patching at present releasing device is suppressed ball seat by hydraulic pressure and is cut off shear pin, and lock ball gets into groove rear center bar and moves down, and plug is thrown off, and the lock pawl is regained, the completion handspring.The releasing device of this structure is in actual application; The situation that ball can not advance groove smoothly can take place; And because component is very big and its ball point-contact junction structure can block deep hole groove usually on cell body; Make the whole mechanism of slipping out of the hand be in paralysis easily like this, thereby the problem that after this instrument has been subsidized, hand occurred taking off not open through regular meeting.
Summary of the invention
In order to solve the problem that above-mentioned releasing device exists, the utility model provides a kind of being beneficial to realize slipping out of the hand, using reliable and stable casing patching to reinforce releasing device.
The purpose of the utility model can provide following technical measures to realize:
Releasing device is reinforced in this casing patching, comprises piston, shear pin, overcoat, interior cover, lock pawl and plug, puts in described and is provided with different in nature ball line contact mechanism.In described, putting the effect that described different in nature ball line contact mechanism is set is to substitute ball point-contact junction structure through described different in nature ball line contact mechanism, component is decomposed, thereby improve stress condition and situation, the stable pressure of slipping out of the hand.
The purpose of the utility model also can provide following technical measures to realize:
Described lock pawl is provided with the spline groove mechanisms, and between described lock pawl and described plug, is provided with and lets bit space.The effect of this project organization is when receiving hole condition external environment condition when restriction, just change through instrument, and that leans on abnormity lock pawl face radially fixedly prevents idle running, and utilizes and let bit space that lock pawl and plug are stepped down, the realization hands free operation.
The beneficial effect of the utility model: described different in nature ball line contact mechanism is set through in described, putting; Make component obtain decomposition; Improve stress condition and situation, thereby solved the technical problem that ball can not advance groove, stablized the pressure of slipping out of the hand; If in addition once because of external environment influence can not realize normally slipping out of the hand, this novel reserve second kind just changeing the mode of slipping out of the hand.So the utlity model has the rate height of slipping out of the hand, reliable and stable advantage.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure 1, joint, 2, piston, 3, shear pin, 4, overcoat, 5, different in nature ball, 6, interior cover, 7, the lock pawl, 8, plug, 9, let bit space, 10, the spline groove.
The specific embodiment
Releasing device is reinforced in a kind of casing patching as shown in Figure 1, and joint 1 connects central tube, and ground hydraulic power passes to piston 2; Shear pin 3 is cut off; Opposite sex ball 5 is stepped down, and different in nature ball 5 is stuck between piston 2 and the overcoat 4, and is line between piston 2 and the overcoat 4 and contacts; Opposite sex ball 5 is stepped down and is got in the piston groove, and piston 2 moves down realization lock pawl 7 with interior cover 6 integral body and throws off with plug 8.Lock pawl 7 is provided with spline groove 10, thereby the concavo-convex alternately design of groove 10 realizes rotation stopping functions, is provided with between lock pawl 7 and the plug 8 to let bit space; Slip out of the hand at hydraulic pressure and to receive hole condition external environment condition when restriction; Just changeing central tube and driving joint 1, because lock pawl and sleeve pipe have been realized spline, lock pawl 7 can only be along moving on overcoat 4 spirals when tubing string just changes; Let bit space 9 pass between lock pawl 7 and the plug 8, lock pawl 7 this moment and utilize the bit space that lets that produces when moving throw off with plug 8.
Claims (2)
1. releasing device is reinforced in a casing patching, comprises piston, shear pin, overcoat, interior cover, lock pawl and plug, it is characterized in that putting in described being provided with different in nature ball line contact mechanism.
2. releasing device is reinforced in a kind of casing patching as claimed in claim 1, it is characterized in that described lock pawl is provided with the spline groove mechanisms, is provided with between described lock pawl and the described plug to let bit space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202152585U CN202194605U (en) | 2011-06-23 | 2011-06-23 | Hand release device for casing patch reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202152585U CN202194605U (en) | 2011-06-23 | 2011-06-23 | Hand release device for casing patch reinforcement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194605U true CN202194605U (en) | 2012-04-18 |
Family
ID=45949522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202152585U Expired - Fee Related CN202194605U (en) | 2011-06-23 | 2011-06-23 | Hand release device for casing patch reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060901A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of releasing gadget for being used to wait hole diameters expansion sleeve bare hole padding instrument |
-
2011
- 2011-06-23 CN CN2011202152585U patent/CN202194605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108060901A (en) * | 2017-11-22 | 2018-05-22 | 中国石油集团长城钻探工程有限公司 | A kind of releasing gadget for being used to wait hole diameters expansion sleeve bare hole padding instrument |
| CN108060901B (en) * | 2017-11-22 | 2019-12-13 | 中国石油集团长城钻探工程有限公司 | Release mechanism for open hole patching tool of equal-well-diameter expansion casing |
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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 |
Granted publication date: 20120418 Termination date: 20150623 |
|
| EXPY | Termination of patent right or utility model |