Reservoir type is mainly the complex fault block group reservoir in Dongpu Depression. Based on the study of genesis mechanism of fault block group, the fault block group of Dongpu Depression can be divided into eight types. On the basis of the analysis of different types of fault block group reservoirs, main control factors of hydrocarbon accumulation are summarized in complex fault block group, including fault sealing, transporting system and hydrocarbon accumulation stage of reservoir. The hydrocarbon accumulation pattern of eight types of fault block groups is established.
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