Abstract

Adaptive Processing Technique for comprehensive well log evaluation solves the simultaneous system of logging tool response equations through statistical approach by using weighted least square minimization technique. It involves minimization of the incoherence function i.e. summation of square of errors between the measured and constructed logs by incorporating the total uncertainties on tools, parameters and response equations. It also simultaneously optimizes the unknowns and zones parameters in different way. It introduces the statistical theory that least square estimates are the mean estimates and only mean values are optimized while selecting minerals parameters for a particular zone. Process is adaptive in the sense that it uses the results of previous stage/level as the input to the next stage/level.