TY - JOUR

T1 - DETAILED CORRELATION AND REFINED FACIES ZONING OF LOWER–MIDDLE JURASSIC OIL AND GAS-BEARING DEPOSITS IN THE SIBERIAN ARCTIC

AU - Shemin, G. G.

AU - Vernikovsky, V. A.

AU - Glazyrin, P. A.

AU - Sapyanik, V. V.

AU - Vakhromeev, A. G.

AU - Smirnov, M. Yu

PY - 2024

Y1 - 2024

N2 - Lower–Middle Jurassic deposits of the Siberian sector of the Arctic shelf which prove to be promising in terms of oil and gas-bearing capacity are associated with challenges stemming from their complex structure and a paucity of drilling data. Results of the detailed correlation based on the biostratigraphic, lithostratigraphic and cyclostratigraphic methods at the scale of horizons, formations, sub-formations and cyclic sedimentary units are presented. The data used were derived from 27 correlation profiles, of which ten (encompassing all the facies regions in the study area) are presented in this article. Due to their major focus on paleontology, the sections of wells and correlation profiles used were few in number. The refined herewith variant of facies zoning of deposits in the study area is based on research results obtained from: paleontological studies, detailed correlation and lithological-paleogeographic maps and maps showing surface sediment composition. The materials allowed us, firstly, to refine the facies zonation along with stratigraphy of the sediment infill in basal formations of Lower-Middle Jurassic deposits, and secondly, to predict spatial distributions of all 19 regionally expressed producing and highly potential oil sands within the area of study.

AB - Lower–Middle Jurassic deposits of the Siberian sector of the Arctic shelf which prove to be promising in terms of oil and gas-bearing capacity are associated with challenges stemming from their complex structure and a paucity of drilling data. Results of the detailed correlation based on the biostratigraphic, lithostratigraphic and cyclostratigraphic methods at the scale of horizons, formations, sub-formations and cyclic sedimentary units are presented. The data used were derived from 27 correlation profiles, of which ten (encompassing all the facies regions in the study area) are presented in this article. Due to their major focus on paleontology, the sections of wells and correlation profiles used were few in number. The refined herewith variant of facies zoning of deposits in the study area is based on research results obtained from: paleontological studies, detailed correlation and lithological-paleogeographic maps and maps showing surface sediment composition. The materials allowed us, firstly, to refine the facies zonation along with stratigraphy of the sediment infill in basal formations of Lower-Middle Jurassic deposits, and secondly, to predict spatial distributions of all 19 regionally expressed producing and highly potential oil sands within the area of study.

KW - cyclic; correlation

KW - facies area

KW - facies region

KW - formation

KW - horizon

KW - lithofacies zonation

KW - lithostratigraphic and biolitho-cyclostratigraphic methods

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85210315450&origin=inward&txGid=21d2b56f7765f46f917f477c7b0ac4ce

UR - https://www.mendeley.com/catalogue/bd5d7a30-2016-3bc7-b787-9dd979cd0a27/

U2 - 10.20403/2078-0575-2024-3-10-30

DO - 10.20403/2078-0575-2024-3-10-30

M3 - Article

SP - 10

EP - 30

JO - Геология и минерально-сырьевые ресурсы Сибири

JF - Геология и минерально-сырьевые ресурсы Сибири

SN - 2078-0575

IS - 3

ER -