Reconstruction of Depositional Environments of Snadd Formation in Norwegian Sector of the Barents Sea

EOD reconstruction results of Snadd formation are based on well data, core description and photographs, 2D and 3D seismic data (including 3D seismic acquired in 2014). All in all eight sedimentary sequences of the 3-4 orders have been identified in Snadd formation interval. The sequence boundaries over most of the area coincide with transgressive or maximum flooding surfaces. Seismic facies analysis together with core and logging data analysis permitted to identify typical seismic facies and to make their sedimentary interpretation. Each sequence has been analyzed to identify stages of maximum development, boundaries of continental deposits distribution, transgressive stages and zonation of accumulations. Also, a propagation of sand bodies of various genesis has been predicted. The most common have been sand bodies of alluvial channel genesis and shelf to nearshore ridges. As a result of comprehensive studies of seismic and well data of Snadd formation using sequence stratigraphy metodology, regional facies maps have been built. The maps cover the entire Norwegian sector of the Barents Sea, including its eastern part adjacent to the Russian Federation.