The article examines coal from the Kaa-Khem deposit from the point of view of its oil and gas generation potential. Coal from the Kaa-Khem deposit was subjected to hydrothermal action at 350°C/24 hours to simulate maturation of organic matter. To assess the kinetic characteristics of the organic matter of Kaa-Khem coal, it was studied by the Rock-Eval pyrolysis method at three heating rates. The kinetic characteristics of individual C1-C5 hydrocarbons were additionally studied by the dry, stepwise pyrolysis. Changes in the composition of hydrocarbon biomarkers before and after hydrous pyrolysis were also analyzed, and it was found that hydrothermal action mainly affected the distribution of n-alkanes and aromatic hydrocarbons. The composition of the sterane and hopane biomarkers are not significant changes. The study of the coal composition by the pyrolytic gas chromatography-mass spectrometry made it possible to record the loss of long alkyl chains in the studied range of thermal maturity. The conducted studies allow us to estimate the hydrocarbon potential of Kaa-Khem coal as high. However, the possibility of its implementation and the forecast of the phase composition of fluids require further studies.
D.A. Bushnev (2025) studied this question.