CN2383961Y - Anti-resisting locking device for tool in oil well - Google Patents
Anti-resisting locking device for tool in oil well Download PDFInfo
- Publication number
- CN2383961Y CN2383961Y CN 99211388 CN99211388U CN2383961Y CN 2383961 Y CN2383961 Y CN 2383961Y CN 99211388 CN99211388 CN 99211388 CN 99211388 U CN99211388 U CN 99211388U CN 2383961 Y CN2383961 Y CN 2383961Y
- Authority
- CN
- China
- Prior art keywords
- piston
- auxiliary piston
- main piston
- central tube
- shear pin
- 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 - Lifetime
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Abstract
The utility model discloses an anti-clogging locking device for subsurface tools for oil production. The utility model is composed of a main piston 13, an auxiliary piston 8, a cylinder barrel 1, a connecting sleeve 2 and a center pipe 15, wherein, the auxiliary piston 8 and the main piston 13 are arranged in a diameter changeable annular cavity composed of the cylinder barrel 1, the connecting sleeve 2 and the center pipe 15. An anti-clogging locking block 9 and a main piston locking block 11 are locked and pressed in grooves of a locking sleeve 10 and the center pipe 15 through the inner wall at the right side of the auxiliary piston 8 to be connected into a whole with the center pipe 15 and the main piston 13. The auxiliary piston 8 is connected with the connecting sleeve 2 through a shear pin 5 of the auxiliary piston. A seat sealed shear pin 7 is arranged in the annular groove of the locking sleeve 10. The utility model is suitable for the subsurface tools for oil production.
Description
The utility model belongs to the oil recovery downhole tool, and particularly a kind of oil recovery downhole tool deters locking device.
Present employed oil recovery downhole tool send being connected of envelope instrument and capping tools, is to be connected by shear pin, and in oil tool was gone into the well process, instrument was hampered stressed, was all born by shear pin, easily causes the shear pin mistake to cut, and instrument is fallen in the well, causes down-hole accident.
The purpose of this utility model is to overcome above technical deficiency, and a kind of protection shear pin is provided, and safe and reliable oil recovery downhole tool deters locking device.In the process of going into the well, deter locking device and play the effect of protection shear pin.Instrument is gone into the well and stressedly in the process is all born by deterring locking device, and entire tool is formed a rigid body.
The task of the present utility model downhole tool that is to recover the oil deters locking device, by main piston, auxiliary piston, in cylinder barrel by adapter sleeve, central tube is formed, auxiliary piston, the staggered cylinder barrel that is installed in of main piston, adapter sleeve, in the reducing ring cavity that central tube is formed, auxiliary piston, main piston, inner wall of cylinder, adapter sleeve outer wall and central tube outer wall are formed airtight reducing ring cavity, O shape O-ring seal is installed on auxiliary piston, the O RunddichtringO is installed on main piston, deterring lock dog main piston lock dog is pressed in locking cover and the central tube groove by auxiliary piston right side inwall lock, with central tube, main piston is connected as a single entity, auxiliary piston is connected with adapter sleeve by the auxiliary piston shear pin, and seat envelope shear pin is installed in the locking collar-shaped groove.
The oil recovery downhole tool deters locking device, and is stressed in the process of going into the well, and all bears by deterring locking device, plays the effect of protection shear pin, forms a rigid body.
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 shows that the oil recovery downhole tool deters the locking device sectional view.
Among the figure, the 1-cylinder barrel; The 2-adapter sleeve; 3-O shape sealing ring; 4-O shape sealing ring; 5-auxiliary piston shear pin; The 6-fishing head; 7-seat envelope shear pin; The 8-auxiliary piston; 9-deters lock dog; 10-locks cover; 11-main piston lock dog; 12-O shape sealing ring; The 13-main piston; 14-O shape sealing ring; The 15-central tube; 16-puies forward unreeling
With reference to accompanying drawing 1, the oil recovery downhole tool deter locking device by cylinder barrel 1, adapter sleeve 2, O-ring seals 3,4 be contained in auxiliary piston 8, auxiliary piston shear pin 5, seat envelope shear pin 7, deter lock dog 9, main piston lock dog 10 is formed the envelope instrument that send.Fishing head 6, O-ring seals 12,14, main piston 13, central tube 15, carry unreeling 16 and other part and form capping tools.
The oil recovery downhole tool deters locking device by main piston 13, auxiliary piston 8, in cylinder barrel 1 by adapter sleeve 2, central tube 15 is formed, auxiliary piston 8, the main piston 13 staggered cylinder barrels 1 that are installed in, adapter sleeve 2, in the reducing ring cavity that central tube 15 is formed, auxiliary piston 8, main piston 13, cylinder barrel 1 inwall, adapter sleeve 2 outer walls and central tube 15 outer walls are formed airtight reducing ring cavity, O shape O-ring seal 3 is installed on auxiliary piston 8,4, O RunddichtringO 12 is installed on main piston, 14, deterring lock dog 9 main piston lock dogs 11 is pressed in locking cover 10 and central tube 15 grooves by auxiliary piston 8 right side inwall locks, with central tube 15, main piston 13 is connected as a single entity, auxiliary piston 8 is connected with adapter sleeve 2 by auxiliary piston shear pin 5, and seat envelope shear pin 7 is installed in locking cover 10 annular grooves.
When the oil recovery downhole tool deters locking device work, water filling is suppressed, auxiliary piston 8 under the fluid pressure effect, cut off auxiliary piston shear pin 5 auxiliary pistons 8 right side inwalls with main piston lock dog 11, deter lock dog 9 outer walls and separate, at this moment, lock dog 11,9 is deviate from from lock slots, send envelope instrument and capping tools to be connected, lock ineffectively, deter locking device and open by seat envelope shear pin 7.
The utility model is applicable to the oil recovery downhole tool.
Claims (1)
1. an oil recovery downhole tool deters locking device, by main piston (13), auxiliary piston (8), in cylinder barrel (1) by adapter sleeve (2), central tube (15) is formed, it is characterized in that auxiliary piston (8), the staggered cylinder barrel (1) that is installed in of main piston (13), adapter sleeve (2), in the reducing ring cavity that central tube (15) is formed, auxiliary piston (8), main piston (13), cylinder barrel (1) inwall, adapter sleeve (2) outer wall and central tube (15) outer wall are formed airtight reducing ring cavity, go up installation O shape O-ring seal (3) at auxiliary piston (8), (4), O RunddichtringO (12) is installed on main piston, (14), deterring lock dog (9) village piston lock dog (11) is pressed in locking cover (10) and central tube (15) groove by auxiliary piston (8) right side inwall lock, with central tube (15), main piston (13) is connected as a single entity, auxiliary piston (8) is connected with adapter sleeve (2) by auxiliary piston shear pin (5), and seat envelope shear pin (7) is installed in locking cover (10) annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211388 CN2383961Y (en) | 1999-05-31 | 1999-05-31 | Anti-resisting locking device for tool in oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211388 CN2383961Y (en) | 1999-05-31 | 1999-05-31 | Anti-resisting locking device for tool in oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2383961Y true CN2383961Y (en) | 2000-06-21 |
Family
ID=34004352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99211388 Expired - Lifetime CN2383961Y (en) | 1999-05-31 | 1999-05-31 | Anti-resisting locking device for tool in oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2383961Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443529B (en) * | 2006-03-24 | 2012-08-01 | 贝克休斯公司 | Fracturing system without intervention |
| CN103233695A (en) * | 2013-04-22 | 2013-08-07 | 中国海洋石油总公司 | Hydraulic lock |
| CN106368637A (en) * | 2015-07-21 | 2017-02-01 | 中国石油化工股份有限公司 | Locking device |
-
1999
- 1999-05-31 CN CN 99211388 patent/CN2383961Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101443529B (en) * | 2006-03-24 | 2012-08-01 | 贝克休斯公司 | Fracturing system without intervention |
| CN103233695A (en) * | 2013-04-22 | 2013-08-07 | 中国海洋石油总公司 | Hydraulic lock |
| CN103233695B (en) * | 2013-04-22 | 2015-10-21 | 中国海洋石油总公司 | Hydraulic lock |
| CN106368637A (en) * | 2015-07-21 | 2017-02-01 | 中国石油化工股份有限公司 | Locking device |
| CN106368637B (en) * | 2015-07-21 | 2019-01-29 | 中国石油化工股份有限公司 | Locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |