3D Seismic Imaging of Soft-Sediment Deformation Features in Sedimentary Basins, Offshore Norway: Implications for Exploration and Production

Large volumes of unconsolidated sediments can be remobilised by the migration of fluids through sedimentary basins. The occurrence and distribution of soft-sediment deformation features in sedimentary basins, therefore, can be used to help map the<br>occurrence and flow of basinal fluids. Based on the interpretation and visualisation of 3D seismic data, two case studies of the scale, geometry and distribution of soft-sediment deformation features are presented from the post-rift succession of the northern<br>North Sea basin (Fig. 1). Key seismic-stratigraphic features and the relationships between them were analysed using various volume and grid-based seismic attributes. It is demonstrated that in both examples numerous phases of soft-sediment deformation have occurred which can be related to a series of fluid flow processes. The results of this study, although based on examples from the North Sea, may have implications for the exploration and production of deepwater slope systems offshore NW Borneo.