Wellbore anchoring system
US8919431B2 · kind B2 · utility
17Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 2012 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Mar 1, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B23/04115
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic wellbore anchoring system for use with whipstocks or other tools in either cased or open hole wellbores. The anchoring system includes an upper slip system and a lower slip system. The anchor system may be set using hydraulic pressure and withdrawn by a predetermined upward force. While the slips of the upper and lower slip systems may be set substantially simultaneously, the anchoring system enables sequential disengagement of the slips to reduce the force required for withdrawal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.