Method and apparatus for balanced pressure sampling
US7565835B2 · kind B2 · utility
4Cited by
69References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2005 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Sep 30, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of sampling fluid from a rock formation penetrated by a borehole includes positioning a downhole tool having a flow line in the borehole, establishing an inlet port through which fluid passes from a first point in the formation into the flow line, establishing an outlet port through which fluid passes from the flow line into a second point in the formation, and passing fluid between the formation and the flow line through the inlet and outlet ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.