Abstract

Direct core analysis results of bulk density, porosity permeability, resistivity, transit time, and strength were correlated with logging data from an oil well. The interpretations were made in terms of index values between field and laboratory data obtained for the two reservoir units studied. An engineering classification scheme was suggested. Other rock engineering properties such as sonic velocity and dynamic modulus were calculated as well. An attempt was made to predict the fracture pressure gradient (FPG) of rock formation. This work has revealed the possibility of using the direct measured data to evaluate some of the in situ rock behavior.

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