Title: Application of Pre-stack Seismic Attribute in Prediction of Turbidite Reservoir——By Taking the Lower Member of Shahejie Formation in Xinglongtai-Majuanzi Region for Example
Abstract: Exploration results indicated that the turbidite reservoirs were developed in the mid-lower member of Es3 in Xinglongtai-Majuanzi Region,where oil and gas was apparently controlled by their distribution,and had a strong hidden nature.The arrangement of exploration was seriously restricted because of unclear recognition of favorable reservoir distribution.Therefore,the logging lithologic information and sensitive curves of SP,GR were comprehensively analyzed first and the lithology-indicated curve was established for reflecting the lithologic variations.Then,the pre-stack AVO process was carried out to obtain multiple attribute volumes,including intercept(P),gradient(G),PG,far angle low frequency(FLF)and μρ,λρ to extract seismic attributes including amplitude,frequency and phase.Finally,by taking the lithology-indicated curve as the target curve,the pre-stack seismic attributes with high sensitivity were optimized as inversion parameters,neural network inversion was used to identify and describe the turbidite reservoirs in Xinglongtai-Majuanzi Region.The result is consistent with that of drilled wells and geological recognitions.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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