Abstract: Fluid conducting system is an essential element in petroleum system where the oil and gas is believed to be a dynamic process from forming hydrocarbon source rock to trapping petroleum. When making a study of fuid conducting system, we have to take account of the time space relations among hydrocarbon source rock,fluid conducting stratum and seal before setting up the whole framework of fluid conducting system. This paper presents this system, including studies of source rock analysis, conducting network, fluid potential, abnormal pressure and fluid tracer techniques. Meanwhile, necessity of using behavior analysis method to study that system is highlighted. A case of application of that system in Yinggehai-Qingdongnan basin is also presented.

Key words: Source bed, Primary migration, Secondary migration, Hydrodynamics, Petroleum system