We will assess geophysical characteristics and geological processes of focused fluid flow systems that may go through or connect to potential hydrocarbon reservoirs. The total number of hydrothermal vent complexes in the Norwegian offshore basins is estim ated to be between 2000 and 3000, and we will concentrate our studies on three target areas. There is strong evidence from seismic (amplitude anomalies) and well data from the Møre and Vøring basin that some of these deep hydrothermal vent complexes have been re-used for vertical fluid flow during the past 55 million years creating fluid flow throughout basin formations. They appear to penetrate the stratigraphic levels of hydrocarbon reservoirs. Therefore, our study focuses on the quantification of the g eological processes that govern basin-scale fluid flow to understand impacts of fluid flow systems on petroleum prospectivity, and the distribution of shallow free gas as a risk in drilling areas. The end products of this project will increase internation al competitiveness, and will add to enhanced education of students in the field of high resolution 3D seismic imaging and fluid flow systems.