Mobil Oil Corporation

Jorge J Faz

Eve S Sprunt

Ernest L Muegge

A core sample invaded by drilling mud is scanned with X-rays and computed tomographic images are produced. The images are calibrated to a density scale based on the barite content of the drilling mud. The mud solid volume in the pores of the core sample are determined from the density contrast created in the computed tomographic images by the presence of barite in the core sample. This mud solid volume is used to provide a corrected porosity measurement on the core sample.

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Dallas, TX, United States of America

Jorge J Faz