Apparatus and methods to perform focused sampling of reservoir fluid
US7878244B2 · kind B2 · utility
11Cited by
22References
20Claims
0Family size
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Key dates
| Filing date | Jul 27, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 16, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus and methods to perform focused sampling of reservoir fluid are described. An example method couples a sampling probe to a subterranean formation and, while the sampling probe is coupled to the subterranean formation, varies a pumping ratio of at least two displacement units to reduce a contamination level of a formation flu id extracted via the sampling probe from the subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.