On the question of preserving natural wettability of a core taken from wells
Authors: A.M. Kuznetsov (Rosneft Oil Company OJSC), V.V. Kuznetsov (VNIIneft OAO), N.N. Bogdanovich (Moscow Research Center of Technology Company Schlumberger OOO)
Processes of change in the nature of pore space surface wettability of the core at its taking from the layer, rising to the surface and preparing for petrophysical studies are considered. It is shown that at application of modern core technology to preserve the natural characteristics of wettability is not possible. Methodical techniques to restore the natural characteristics of wettability during seepage studies are described.
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