Peculiarities in the Distribution of Hydrocarbons in Carbonate Sediments of Venda and Cambrian

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Ivanova, Z E, Sivtsev, A I
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2022
• Subjects: Yakutia
• Online Access: http://dx.doi.org/10.1088/1755-1315/988/3/032042; https://iopscience.iop.org/article/10.1088/1755-1315/988/3/032042; https://iopscience.iop.org/article/10.1088/1755-1315/988/3/032042/pdf

Abstract An attempt is made to explain the features of the distribution of deposits and zones of improved reservoirs in the carbonate part of the Vendian-Cambrian oil and gas complex. The conditions of oil and gas content of the carbonate part of the section of the Nepsko-Botuobinskaya anteclise (NBA) are proposed: the formation of a fault zone with feathering cracks → circulation of aggressive solutions along them with the formation of secondary fractured-cavernous reservoirs → vertical migration and accumulation of hydrocarbons in the formed secondary reservoir. According to the presented scheme for the formation of zones of improved reservoirs, promising zones and subsoil areas within Western Yakutia are indicated.