76 3D Simulation Technology of Hydrocarbon Migration and Accumulation and Its Application in Songnan-Baodao Area of Qiongdongnan Basin, South China Sea

3D hydrocarbon migration and accumulation simulation is one of the most important methods for sedimentary basin and petroleum system analysis. In this study, by taking PetroMod software as an example, the composition, basic work flow and technical characteristics of modeling system are discussed firstly. Then, 3D hydrocarbon migration and accumulation model in Songnan-Baodao area of eastern Qiongdongnan basin is built up with PetroMod, and corresponding simulations are carried out. Finally, the favorable hydrocarbon migration and accumulation zones are suggested, and the possible amounts of hydrocarbon accumulation are predicted.