Correlation between faults orientations and hydrocarbon reservoirs in the East Sea
The East Sea is a large area complicated by a variety of fault systems. There are many differences in the depth, orientation and dip angle of the faults. In the Cenozoic sedimentary basins, most of the faults are determined by using seismic data. Otherwise, wherever seismic data is sparse or in the Pre-Cenozoic basement, the faults are frequently determined by interpreting gravity data.
In this paper, a method of orientation analysis of faults systems to define the major trends of geological structures as well as estimate the correlation between fault orientations and hydrocarbon reservoirs in the East Sea has been carried out. The method has indicated the reliability of using faults systems for discovering and delineating areas with hydrocarbon potential. It can be said that, for particular areas, the existence of the hydrocarbon reservoirs is always consistent with the respective orientation of fault systems. As a result, the close correlation between fault orientations and hydrocarbon reservoirs is demonstrated. The method should be applied as an effective tool for hydrocarbon exploration in the East Sea.
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