Основные типы карбонатных коллекторов нефти турнейского яруса республики Татарстан

Optic-microscopic studying of limestone a Turney circle has allowed revealing 5 structural-genetic types by sedimentation, structure and the size of structural elements. The stratogrphic place of the revealed limestone's types is determined. The role, scales and place of the secondary processes influencing properties of limestone are shown. Only dissolution essentially raises capacity in rang of secondary processes. Secondary calcite, on the contrary, reduces them. The behavior of limestone in secondary processes in many respects is caused by heterogeneity of their addition that defines an orientation and intensity of secondary processes, defines properties.