Method and apparatus for deviated drilling
US5341873A · kind A · utility
66Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Sep 16, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A whipstock assembly which includes a guide section and a setting section, wherein the setting section is configured to facilitate slight rotation of said setting section when the whipstock is set within a well, which rotation urges the guide section securely against the sidewall of the wellbore. Setting section includes a surface which will serve as a fulcrum, and a radially moveable element which serves to apply a force to one side of the whipstock, allowing the whipstock assembly to move as a lever, wherein the guide section is caused to meet the wellbore sidewall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.