In-situ formation strength testing with coring
US8171990B2 · kind B2 · utility
5Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Apr 7, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for estimating one or more formation properties using in-situ measurements conducted at or near a coring location include a coring tool adapted to cut a core sample in a formation, a member having a distal end that engages a borehole wall substantially adjacent the core sample, and a drive device that engages the member to the borehole wall with a force sufficient to estimate formation strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.