Device intended for measurements on a porous sample in the prese

Details Device intended for measurements on a porous sample in the prese Device intended for measurements on a porous sample in the prese

1998-04-28

1999-11-09

Larkin, Daniel S.

Measuring and testing

With fluid pressure

Porosity or permeability

G01N 1508

Patent

active

059792230

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.

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patent: 5679885 (1997-10-01), Lenormand et al.
patent: 5698772 (1997-12-01), Deruyter et al.

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