X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1987-09-04
1988-11-01
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 51, 250253, 250255, G01N 2306
Patent
active
047825014
ABSTRACT:
A core sample of a porous media of identified porosity at atmospheric conditions is saturated with a fluid having an identified X-ray attenuation coefficient. The fluid saturated sample is scanned with X-rays. Confining stress is applied to the sample and the sample is again scanned with X-rays. Porosity of the sample at confining stress is then determined from the porosity at zero confining stress, the X-ray attenuation coefficient of the saturating fluid, and X-ray attenuation coefficients determined from the scanning of the sample at both atmospheric conditions and at confining stress. Pore volume compressibility is determined from the changes in porosity and X-ray attenuation coefficients from atmospheric to confining stress conditions.
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Fields Carolyn E.
Gilman Michael G.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
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