Abstract: In this paper, the current methods of reservoir exploration and theoretical point of view, based on core dates, logging, logging and seismic data, analyzed the structure characteristics and sedimentary system. The integrated use of theories of petroleum geology, sequence stratigraphy, sedimentology and other seismic analysis of hydrocarbon enrichment patterns, and divided by a typical reservoir analysis, the establishment of a major hydrocarbon accumulation mode. The paper discusses the main controlling factor.