| Summary: | In einer empirischen Studie wurden über 250 Unternehmen in Baden-Württemberg zu ihrer aktuellen Hochwassergefährdung, Hochwassererfahrungen in der Vergangenheit, den durchgeführten Schutzmaßnahmen, Kooperationen mit anderen Akteuren des Hochwasserschutzes und der Einbindung des Risikos Hochwasser in das Risikomanagement auf Betriebs- und Unternehmensebene befragt. Aufgrund der Ergebnisse konnten Faktoren, die sich motivierend auf das Betreiben von Hochwasserschutz auswirken ausgemacht werden.In this study, we aim to elucidate the impact of Cenozoic erosion and Pliocene-Pleistocene glaciations on the dynamics of hydrocarbon leakage from the thermogenic reservoirs. We use high resolution and vintage 3D seismic reflection datasets to analyse hydrocarbon plumbing system above the Snøhvit and Albatross gas fields to investigate the geo-morphological manifestation and the dynamics of leakage from the reservoir. We then use 3D Petroleum Systems Modelling (PSM) to simulate the basin history in terms of generation, migration and leakage of hydrocarbons through time in response to erosion, glacial loading and deglaciations. Based on this integrated approach, we then are able to compare numerical modelling results with seismically observed leakage indicators. Numerous EW trending reactivated faults are present in the study area which link the Jurassic hydrocarbon reservoirs of the Snøhvit and Albatross field with the shallow Paleocene strata. Reactivation of polygonal fault networks has formed an interconnected network of Paleocene faults, which served as migration avenues for thermogenic fluids in the vicinity of deep reactivated tectonic faults. Numerous pockmarks and mega pockmarks on the seabed and buried pockmarks on the base Quaternary Upper Regional Unconformity (URU) provide evidence of migration pathways as they are connected to seismic blow out pipes, Paleocene fault networks and deep reactivated tectonic faults. A gas cloud anomaly has been interpreted as a Bottom Simulating Reflector (BSR), whose depth ...
|
|---|