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U.S. Department of Energy
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Rock fabric, permeability, and log relationships in an upward-shoaling, vuggy carbonate sequence

Book ·
OSTI ID:6886913
Cores and logs used in the study were from a Department of Energy well in Oldham County containing a wide range of separate-vug porosity in a simple upward-shoaling carbonate sequence of early Permian (Wolfcampian) age. The authors investigated two wireline methods, one involving acoustic logs and one involving resistivity logs, and both were found to determine separate-vug porosity. Two equations relating interparticle porosity and permeability were derived using the general relationship between particle size, interparticle porosity, and permeability described earlier by Lucia as a guide to define porosity-permeability relationships. The authors report that permeabilities calculated using particle-size and interparticle porosity determined by subtracting separate-vug porosity from total porosity are more accurate than those calculated from total porosity data alone.
OSTI ID:
6886913
Country of Publication:
United States
Language:
English