Abstract
The article presents the results of analysis and numerical modeling of sedimentary basins of the Tatar Strait riftogenic trough of the Sea of Japan, which made it possible to create its structural 3D model and determine the conditions for the formation of its generation-accumulation hydrocarbon systems. To study the geodynamic evolution of the sedimentary basins of the Tatar Strait, a digital reconstruction of the history of subsidence and sedimentation was carried out using numerical basin modeling technologies. The chronothermobaric conditions for the occurrence and evolution of sources of hydrocarbon generation and the formation of oil and gas accumulations in sedimentary basins of the riftogenic trough were reconstructed by three-dimensional modeling of generation-accumulation hydrocarbon systems using the PetroMod software (Schlumberger, Ltd, USA). Modeling of the hydrocarbon systems made it possible to identify the fundamental features of their structure in the water area of the Tatar Strait at the present stage of their development, which in general terms are as follows: the sources of hydrocarbon (HC) generation are located in depressions of the sedimentary basin; the maturity of rocks decreases from south to north with depth; and hydrocarbons accumulate along the flanks of the basins.
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