Pump control for formation testing
US8967253B2 · kind B2 · utility
3Cited by
32References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Dec 1, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole formation fluid pumping and a sampling apparatus are disclosed that may form part of a formation evaluation while drilling tool or part of a tool pipe string. The operation of the pump is optimized based upon parameters generated from formation pressure test data as well as tool system data thereby ensuring optimum performance of the pump at higher speeds and with greater dependability. New pump designs for fluid sampling apparatuses for use in MWD systems are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.