Thermal maturity modelling for the source rocks in blocks 10 and 11.1, Nam Con Son basin

Blocks 10 and 11.1 are located at the western boundary of Nam Con Son basin, offshore southern Vietnam. Hydrocarbon shows have been encountered in many wells as Gau Chua (GC), Ca Cho (CC), Ngua (GN), Phi Ma (PM), Than (TM), etc. In CC GN fields, oil gas were discovered Miocene sandstone reservoirs fractured granite basement. The Cau Dua formations active source rocks this area. Oil generated from coal coaly claystone sediments which deposited under oxidation conditions to weak reducing fluvio-delta estuarine environments, land plants develop very abundantly. 2D modeling results suggested that hydrocarbons study area mainly derived local rocks. large quantity yields deeper part southeastern kitchen migrated both vertically laterally into overlaying formations. strongly lost through open fault. Prospects near can trap if they a good seal. Block block face high risk hydrocarbon charge due distance kitchen, top seal fault Of scenario, composition accumulated GC structure contains 87.5% volume liquid 12.5% Oligocene rock. accumulation CT (Ca Ty) 99% 92.5%