The complex lithology, and the nature of the "measurement environment," make the "deep Anadarko basin" one of the more difficult log-evaluation problems facing the industry anywhere today. Methods for solving this problem are adapted to various conditions of hole size, temperature, pressure, salinity, and gasified mud, as well as to the particular case of salt-saturated drilling fluid, high temperatures, and deep invasion. Log-evaluation methods include Quick-Look interpretation techniques employing the Dual Laterolog and/or the Compensated Neutron/Formation Density (Compensated) as well as the advanced computation system, CORIBAND. Evaluation systems available are capable of a highly consistent and reliable evaluation of this complex reservoir.

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