ИСТИНА

Domanic and Bazhenov Formations are the largest source rocks in Russia, in which during thermal maturation and secondary processes unconventional reservoirs might form. Due to nonuniformity of both formations and tectonic factors affecting secondary changes in rocks and pore space forming it is complicated to estimate capacity, filtration properties and amount of hydrocarbons storage in these source rocks. In this regard, research of mechanisms and transformation features of pore space structure, as well as hydrocarbon generation processes are of greatest interest for lowering uncertainties and increasing ability to predict formations properties. The natural process of organic matter maturation has a direct impact on the rock pore space alterations. In recent time technologies for modeling of thermal maturation of rocks under close to reservoir conditions similar, such as pyrolysis and hydropyrolysis can be used. Experimental studies of rocks heating (more than 100 experiments) with monitoring of the pore space changes using computer microtomography and hydrocarbon composition using GC/MS chromatography were performed. In the same time rock composition and its influence on organic matter transformation, hydrocarbons generation and pore space changes was investigated for better studying of processes that might perform in reservoir.