Downhole tool
US7168493B2 · kind B2 · utility
40Cited by
4References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Nov 16, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic tool assembly for a downhole tool comprises a body (12), first and second members (14, 16) mounted for independent movement with respect to the body, and first and second control fluid chambers (24, 26) associated with the respective first and second members. Movement of the first member (14) between a first position and a second position in response to an applied force displaces control fluid from the first chamber (24) into the second chamber (26), to move the second member from a first position towards a second position to execute a tool function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.