ABSTRACT

Experimental logs were run in slim holes in the Colorado oil shale to determine potential oil yield. Small diameter (1 3/4" O. D.) acoustic and gamma-gamma density tools were run in nominal 3" diameter holes. The logs were calibrated using density and acoustic log results reported in the literature and borehole models of known density. Reasonable values of oil yield were obtained. Later the log results were compared with assay analysis of cores taken from the holes logged and good agreement was found.

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