About inexpediency of preliminary extraction of the samples, selected from undersaturated oil reservoirs

Authors: E.F. Koutyrev, V.V. Shkandratov (KogalymNIPIneft OOO)
On the basis of own researches and investigation on other scientists study it is shown, that traditional core samples extraction results in essential distortion of filtration-capacitive properties and a residual oil saturation at a modeled initial water saturation. The extraction with use of a cold kerosene is recommended.

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