Method for evaluating favorable reservoir formation zone of ancient buried hill
An evaluation method and technology for favorable areas, applied in data processing applications, instruments, calculations, etc., can solve the problems of poor effectiveness of ancient buried hill accumulation evaluation methods, and achieve the effect of reliable evaluation and improved accuracy.
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[0043] The Dongpu Sag is a Cenozoic high-frequency oscillating salty faulted lake basin developed on the basement of the Mesozoic and Paleozoic. During the formation of the Sag, a huge clastic rock formation dominated by the Paleogene was deposited. The Jurassic and Cretaceous strata are basically absent in the basin, and the Paleogene directly covers the Middle and Lower Triassic and older strata, while the Lower Paleozoic, Upper Paleozoic, Middle and Lower Triassic, etc. The reflected sedimentary features are similar to other areas in North China. A series of NNE-trending normal faults developed in the Dongpu Sag in the Paleogene, which can be divided into the Lanliao fault zone, the Yellow River-Wenxi-Guancheng fault zone and the Changyuan-Shijiaji-Songmiao fault zone on the whole, forming three ancient fault zones. The buried hill structural belt, due to the continuous activity of faults, controlled the sedimentation of the Shahejie Formation and deposited a thick oil sour...
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