Study On Sudeerte Petrelliferous Sub-system Of Beier Depression

By comprehensive utilization of petroleum geology, seismic, core and analysis of information, and application of structural geology, sediment logic, petroleum geology, reservoir geology and other multi-disciplinary theories and methods, division for a petroleum system has been worked out mainly on the Beier Sag-reservoir Petroliferous System , and according to the division results of petroleum system in the region by my hierophant, made primary study and analysis for which Sudeerte petroleum sub-system, which is of important theoretical value and practical significance. r Petroliferous System ,which is of important theoretical value and practical significance.Beier sag source rocks is the Nantun Group and the Damoguaihe group, the most important source aguada in plane is Beixi aguada. The information about oil and source rock correlation and migration of oil gas indicated that the oil gas sources of Sudeerte petroleum sub-system is mostly Nantun group and Damoguaihe group of Beixi aguada, at the same time itself has a certain oil generation capability, this is also consistent with the division standard of petroleum system.Sudeerte important petroliferous sub-system layers are Xinganling group and Budate group, Xinganling group influenced by fault systems embraces sturctral traps, the upper nasal reservoir and the lower block-type reservoir, burial hill type reservoir for Budate Group. In this petroliferous system reservoir accumulation is mainly affected by fractures, unconformity surfaces and the impact of sand body, in which fracture is the most important factor.