Open AccessFree and Bound Water Content in Tight Rocks of Bazhenov Formation
Author(s) -
E. S. Kazak,
I. A. Rodkina,
Andrey Kazak
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/459/2/022094
Subject(s) - bound water , capillary condensation , water content , wetting , geology , mineralogy , evaporation , hydraulic fracturing , free water , adsorption , chemistry , geochemistry , geotechnical engineering , chemical engineering , thermodynamics , engineering , physics , organic chemistry , molecule
The paper presents data on water content separated into free, physically and chemically bound types for a collection of core samples from the Bazhenov formation. The rock samples came from 3 wells of Nizhnevartovsk arch, Western Siberia, Russian Federation. Each rock sample was a part of whole core with the maximum preserved natural water content. A suite of modern laboratory techniques includes evaporation method, derivatographic, and hygrometric studies. The results show that the content of chemically bound water (0÷6.4 wt.%) exceeds that of free (0÷1.87 wt.%) and physically bound (0÷1.0 wt.%). For the first time, we present the water content of mono-, poly-, and capillary condensation water obtained from the interpretation of adsorption isotherm. These data made it possible to draw a meaningful conclusion on mixed wettability of Bazhenov formation rocks.