Download PDF

OIL-AND-GAS SOURCE ROCKS AND THE PROBLEM OF PETROLEUM POTENTIAL OF THE ALDAN-MAYA DEPRESSION (SOUTH-EAST OF THE SIBERIAN PLATFORM)

P. N. Sobolev, S. V. Dykhan

Siberian Research Institute of Geology, Geohysics and Mineral Resources, Novosibirsk, Russiа

The analysis of existing understandings about distribution of oil-and-gas source rocks was performed for sedimentary section of the Aldan-Maya depression, the large margin structure in the south-east of the Siberian Platform. Taking into account new materials, the oil-and-gas generating potential of these strata was critically examined, and the ideas of previous research period were defined more precisely. On this basis, the sketch map of oil-and-gas bearing stratigraphic breakdown of the Aldan-Maya depression sedimentary cover was compiled. The main elements of hydrocarbon systems, including predicted petroleum plays and petroleum bearing strata were identified, forecast of possible types of traps for various parts of the depression was given. Based on this experience, the contour map of the petroleum potential forecast for the Aldan-Maya depression and adjacent territories was compiled.

Keywords: oil-and-gas source rocks, domanikoid deposits, oil-and-gas bearing stratigraphic breakdown of section, petroleum potential.

DOI 10.20403/2078-0575-2022-3-30-38

​ ​​​​​​