Wellbore treatment apparatus and method
US7424912B2 · kind B2 · utility
4Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Mar 5, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/138
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A treatment apparatus and method for wellbore instability is described including a caliper with one or more radially extending arms which are capable of extending and retracting movement in a radial direction and a fluid supply facility to deliver treatment fluid from the ends of the arms to the wellbore wall, with a sensing and valve mechanism such that in use fluid is being delivered from the end of any extended arm to a breakout region of the wellbore where there is instability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.