Device for measuring physical characteristics of a porous sample
US8042382B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Device for measuring physical characteristics of a porous sample by performing successive drainage and imbibition phases in the presence of a first electricity-conducting fluid and of a second fluid of lower density than the first fluid, by means of a centrifuge whose speed is successively increasing and decreasing. The sample saturated with the first fluid is placed in a vessel (13) fastened to the end of an arm (9) driven in rotation by a motor (10) and communicating, by means of a rotating electro-hydraulic connector (17), with a stationary measuring signal control and acquisition unit (E) including hydraulic fluid displacement means and an acquisition device connected to a capacitive sonde in the vessel, which delivers signals indicative of the position of the interface between the two fluids. The device can be applied for analyzing rocks taken from an underground reservoir for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.