Unconventional (volcanogenic) oil and gas reservoirs
The article once again draws attention to the deep-lying deposits of Permo-Triassic age discovered in the northeastern part of Western Siberia, including the Yamal Peninsula. Features of these deposits include large depths (more than 5 kilometers), as well as close conditions of formation of volcanogenic deposits of the Khapchagai megaswell of the Vilyui syneclise of Eastern Siberia. Methodology of volcanogenic reserves, features of the opening of volcanogenic deposits, subsequent directions of searches are given.