Bound water of the rock samples of the Bazhenov formation before and after extraction
The rst results of determination of the content of di erent types of bound water by hygrometric method - adsorption isotherm method - for extracted rock samples of Bazhenov formation are presented. All obtained water sorption isotherms have a well-de ned S-shape, which allows to determine the maximum possible amount of bound water of di erent types (mono -, poly- and capillary condensation) in all studied samples. The in ection points of the isotherms of the extracted samples fully correspond to the in ection points of the isotherms of the native samples. Based on the obtained results, it is possible to further estimate the speci c surface area of the samples, and then determine the hydrophobicity coe cient and the parameters of the associated oil saturation.