Device intended for measurements on a porous sample in the presence of fluids, using temperature-resistant semipermeable membranes
US5979223A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/241
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Device intended for measurements on a porous rock bar in the presence of fluids including a containment cell comprising an elongate body (2) closed at the opposite ends thereof by end pieces (6, 7) and sources of pressurized fluids allowing displacement under pressure, within the sample, of a first wetting fluid and of a second fluid. One or more selectively wettable rigid membranes consisting each of a relatively thin layer of a porous ceramic on a support layer made from a porous material are pressed against the ends of the sample. The membranes can for example be made by sintering of metallic grains of unequal size (the grains are much coarser for the support layer). Such membranes have good resistance to high temperatures of the order of several hundred .degree.C. Electrodes (E1) connected to a measuring device (24) are used to determine physical characteristics of the bar. The device can be used for oil reservoir engineering notably.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.