ИСТОРИЯ И МЕХАНИЗМЫ ФОРМИРОВАНИЯ ЗАЛЕЖЕЙ НЕФТИ В КАРБОНАТНЫХ ПОРОДАХ ПО МИНЕРАЛОГО-ЛИТОЛОГИЧЕСКИМ ДАННЫМ

Using the analysis of collector structures and composition of authigenic accessory minerals which were formed by biogenic destruction of clastics compounds, we can get information about carbonate rocks subjected to hydrocarbon epigenesis. Several sequential stages, for example secondary water invasion may be realized in the course of forming oil deposits. In Tatarstan the organogenic limestones with porosity formed and preserved in time of water filtration during depressurisation of the reservoirs are considered as the only oil-potential formations.