Controlling formation tester probe extension force
US9810060B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2012 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A formation tester for use in a subterranean well can include a probe which extends outward into contact with an earth formation, and an adjustable flow control device which limits an extension pressure applied to extend the probe. A method of testing a subterranean formation can include positioning a formation tester in a wellbore, extending a probe of the formation tester outward into contact with the formation, and limiting a force applied by the probe to the formation, the limiting being performed by variable actuation of a flow control device downhole. Another formation tester can include a probe which extends outward into contact with an earth formation, with a force applied by the probe to the formation being remotely adjustable downhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.