Modeling Burial History and Fluid-Rock-Interactions of Deep Overpressured Reservoirs in the Central Graben, North Sea

Abstract

P043 MODELING BURIAL HISTORY AND FLUID- ROCK-INTERACTIONS OF DEEP OVERPRESSURED RESERVOIRS IN THE CENTRAL GRABEN NORTH SEA Abstract 1 We study temperature and pressure-controlled inorganic and organic diagenetic processes in a study area of the Central Graben North Sea containing clastic Mesozoic reservoirs situated at depths of 4.5-5 km and temperatures of 170-192°C. The reservoirs are highly overpressured due to rapid burial during the last 2 Ma. We present first results of a basin modeling study focusing on the burial and temperature history of these HPHT-reservoirs. Furthermore we concentrate on organic-inorganic interactions enhancing mineral solubility and increasing porosity. This is