Petrophysical Interpretation of the Well Logging Data with the High Vertical Resolution

Using in well logging data interpretation algorithms for complicate reservoirs input characteristics,<br>averaged on reservoir effective thicknesses, leads to errors in determination of the filtration-capacity<br>properties. The increase of heterogeneities of sections on a porosity and permeability results in<br>underestimation of these parameters by averaging. Accordingly this, total porosity lose information value,<br>and the concepts of "condition" ("boundary") values of the petrophysical characteristics lose physical sense.<br>The new methodology of petrophysical interpretation of well logging data for composite reservoirs with high<br>non-uniformity on depth and direction of strata is indispensable.<br>Interdependent petrophysical invariants - effective porosity and relative shaleness, normalized on<br>their maximum values for given reservoir entered as an interpretation parameter.