Downhole/openhole anchor
US7789134B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2006 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Aug 7, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A whipstock/billet anchor can be set in open hole such that one or more slips initially shift laterally near the lower end or below the whipstock/billet while the upper end reacts and gets pushed against the wellbore. Then with the top of the whipstock/billet against the wellbore another slip gets a bite to secure the whipstock/billet in a manner where the wellbore gives it some support near its upper end as a drill bit engages the whipstock/billet to make a lateral. Open and cased hole application is contemplated. The anchor also allows running in and supporting a tubular string below and a tool above with the further option of cocking the tool for better support before securing it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.