Quantitative Analysis of Bound Water in Rocks of the Bazhenov Formation

Abstract

This paper presents the first results of hygrometric analysis (sorption isotherm method) of the contents of bound water types for nonextracted rock samples of the Bazhenov Formation. The water sorption isotherms are characterized by an evident S shape, which allows determination of the maximum amount of mono-, poly-, and capillary condensation bound water and provides important conclusions on the hydrophilic properties of rocks of the formation. According to the morphology of the sorption isotherms, the amount of bound water, and their similar mineral compositions, nine samples were combined into four groups; other samples were considered individually. A correlation between the content of pore water and the amount of mono- and polylayered water was found.