It is typical fluvial deposits with thin reservoir and low structural amplitude in Yingtai area of Jilin Oilfield. Therefore, mini-fault exerts significant impact in the controlling of structural geometry and oil-water relation. Through the application of a series of fault interpretation techniques such as coherence cube of predominant frequency band, dip detecting, azimuth detecting, edge-faulted detecting and so on, not only the contradiction of oil-water relation between conventional interpretation results and the drilling results for oilfield development has been basically solved, but also some low amplitude structures relative to mini-fault have been discovered and proved, which provides fundamental data for increasing production and reserve and adjusting development schemes for oilfield.
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