Experience of planning and support of 3D seismic exploration on the example of a deposit in the South Torgay basin

Abstract

The modern development of seismic fieldwork technologies and data processing and interpretation techniques make it possible to obtain high-quality material not only for studying structural features, but also for in-depth analysis of rock anisotropy: a detailed understanding of the spatial heterogeneity of lithological and petrophysical properties, predicting the nature of fluid saturation, analyzing finely disjunctive tectonics, fracture density and propagation geometry.
 Quality control at all stages of the field seismic survey and processing is also important. It is necessary to understand that quality control consists in direct participation in the work process from the beginning of seismic survey planning to obtaining the final result and interpretation.
 This article discusses the importance of full technical support for seismic exploration from planning and design of field work for solving the geological problems, to choosing the optimal processing graph, the results of which have a significant effect on structural and dynamic interpretation. On the example of the South Torgay Basin field, the detailed design of seismic surveys, the use of the latest fieldwork and data processing technologies made it possible to obtain more complete geological and geophysical information. As a result of the work carried out, in 2021, all wells drilled on the basis of the new seismic survey obtained an industrial inflow of hydrocarbons.