Formation testing apparatus and methods
US8555966B2 · kind B2 · utility
3Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2008 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/0875
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A formation testing apparatus and method are disclosed. In one aspect, a fluid is drawn from a formation, one or more sensors measure pressure of the fluid during the during drawing of the fluid, and a processor estimates an inflection point from the pressure measurements and controls the drawing of the fluid from the inflection point until the pressure of the fluid drops to a selected level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.