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从古地貌、沉积相带和地震属性间的关系出发,论证了古地貌背景约束下地震属性优选技术的合理性。阐述了多属性聚类分析技术,将优选出的敏感地震属性进行聚类分析,并将其应用于礁滩相储集层和油气预测中。应用实例表明,基于古地貌背景约束优选出的地震属性和相应的多属性聚类方法,能有效表征生物礁储集层发育的有利相带、物性特征及部分流体特性。
Based on the relationship between palaeogeomorphology, sedimentary facies belt and seismic attributes, the reasonableness of the seismic attribute optimization technique under the paleogeomorphology background is demonstrated. The multi-attribute clustering analysis technique is expounded. The selected sensitive seismic attributes are clustered and applied to the reef-shoal facies reservoirs and oil-gas prediction. The application examples show that the seismic attributes and the corresponding multi-attribute clustering methods based on the paleogeomorphic background constraint can effectively represent the favorable facies belts, physical properties and some fluid characteristics of the reef reservoir.