Geodynamic and Sedimentation Models of the Northern Torgai Sedimentary Basinevolution and a Strategy for Geological Exploration
Year: 2026
Type: article
Abstract: The objective of this study is to develop a new geodynamic and sedimentation model of the North Torgay Sedimentary Basin and to establish a strategy for geological exploration. The North-Torgay Sedimentary Basin is the largest geotectonic megastructure in Eurasia, located in a suture transit zone between the Hercynian nappe-fold structures of the Ural System and the Kokshetau Central Massif. Based on a synthesis of data from the “Batholith” seismic geotraverse, drilling data from previous years, and the results of deep drilling of well PZ-1 (2024–2025), a new geodynamic and sedimentation model of the basin has been developed, including the Zhylanshik Trough and the adjacent MynbulakSaddle within its boundaries. The quasi-platform complex (D3–C1) has been identified as the main oil- and gas-bearing horizon: the Sorg content in bituminous limestones of the Middle visean reaches 2.77%, and in the Upper Tournaisian, 2.97%. The estimated hydrocarbon resources of category D2 have been refined. A three-stage strategy for geological exploration has been developed. The practical significance of this work lies in substantiating the potential of the Paleozoic oil and gas-bearing zone and developing a geological exploration program for state licensing of subsoil use.
Source: Neft i gaz
Authors: G.ZH. ZHOLTAEV, KH.B. ABILKHASIMOV
Language: English
Subfield: Geology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W7213782819