Unsteady-state profile permeameter - method and apparatus
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United States of America Patent
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Aug 24, 1993
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Apr 24, 1992
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Apr 24, 1992
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Abstract
'A method and apparatus for automated, non-destructive permeability determination of a whole-core reservoir rock sample from pressure and time measurements taken as a known volume of pressurized gas, injected into the sample through a probe, diffuses through the sample in a modified hemispherical flow pattern.
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