Abstract:Combining with geological and drilling data,an overall re-evaluation of deep Cambrian buried hill reservoirs in Yaha rich oil and gas area is carried out based on 3D seismic reprocessed by GeoEast System.Fractures are quantitatively identified with coherence and curvature analysis.Then thrust faults and strike-slip faults are characterized,and the reservoir mechanism is discussed.The following understandings are obtained:①The early strong thrust of Yaha faults was the main controlling factors that has affected the denudation of fault blocks,affected the reservoir development and hydrocarbon enrichment; ②Different seismic attributes only reflect fractures of different scales,so multi-attribute analysis should be comprehensively used in the research process; ③Controlled by tectonic evolution,the Cambrian reservoir development had three stages:the first stage formed in the Caledonian-Early Hercynian period,it is in the early stage of burial diagenesis;the second stage formed in the late Hercynian-Indosinian period,which is in the overall uplifting stage of the Yaha structural belt; the third stage formed in the middle and late Yanshanian-Himalayan early and middle stages.
苏洲, 张慧芳, 李斌, 罗海宁, 孙琦, 李刚. 利用多属性断裂分析技术识别断层——以牙哈断块潜山为例[J]. 石油地球物理勘探, 2018, 53(s1): 201-207,213.
SU Zhou, ZHANG Huifang, LI Bin, LUO Haining, SUN Qi, LI Gang. Fault and fracture identification with seismic multi-attributes:an example of Yaha fault-block buried hills. Oil Geophysical Prospecting, 2018, 53(s1): 201-207,213.
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