基于多属性数据体的三维地震相体分析技术

3D SEISMIC FACIES VOLUME ME ANALYSIS TECHNIQUES BASED ON MULTI-ATTRIBU-TES VOLUMES

基于三维多属性数据体的地震相体分析技术,是继地震相剖面划相、平面划相后发展起来的一项体划相技术,它实现了纵向和横向的地震相同时划相。地震相数据体为了解岩相、沉积相、地层和储层特征的三维分布特征提供了依据。这里介绍了采用主分量分析(PCA)等聚类分析技术,进行地震相体分析的方法、流程和实际应用效果,并对体划相技术的方法特点进行了分析,地震相体分析技术能够用来刻画储层内部及地质体,例如碳酸盐沉积环境生物礁等。

The seismic facies volume analysis techniques based on 3D multi-attributes data volume are newly developed methods following the seismic facies analysis on profiles or in planes which is doing the lateral and vertical seismic facies analysis simultaneously.The seismic facies volume can provide us more references with 3D characteristics of sedimentary facies,stratigraphy and reservoirs.This paper introduces the principles,workflow and results from field data of seismic facies volume analysis techniques proposed by us.The characteristics and effect factors of the seismic facies analysis techniques are also discussed in this paper.The seismic facies volume can be used for mapping the interior of reservoirs and geobodies,such as biogenic reef in carbonates sedimentary environment,etc.