DOI: 10.24412/2076-6785-2023-6-16-20
Abstract
The work contains a comprehensive analysis of the data which allowed to detect the geomorphology of underwater alluvial fans. It was found that the types of feeding systems and the facies heterogeneity influence the peculiarities of the reservoir formation in various parts of underwater fans and predetermine their quality, direction and speed of sand body wedging-out. The identified common patterns in the reservoir morphology can be used in the geological modeling and prediction of deposits.
Materials and methods
The work was based on geological and geophysical data of Tarasovskoye field including a 697,5 km² 3D CDPM cube, well 71 survey interpretation results and the core data from seven wells of the site. The work methodology included the depositional and lithofacies analysis, analysis of the well survey curves and dynamic interpretation of the seismic data, as well as the analysis of the morphological structure of alluvial fans based on the well and core data.
Keywords
typification of underwater fans, achimov deposits, facies heterogeneity, sand reservoir rocks
