Apparatus and methods of use for a whipstock anchor
US7963341B2 · kind B2 · utility
9Cited by
14References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An anchor for a wellbore is adaptable to be operated in at least two separate and distinct ways. In one embodiment, a whipstock anchor is provided that can be operated either mechanically or hydraulically. In another embodiment, the anchor is designed to run through a restriction in a retracted position and thereafter expanded to position a wellbore tool in the wellbore. Preferably, the anchor is expandable to set in wellbores of various sizes and either cased or uncased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.