地震属性分析在深水浊积水道刻画中的应用

Application of seismic attribute analysis in the sub division of deep water turbidity channel

开发初期,由于缺乏钻测井资料,难以刻画深水浊积水道的发育期次,砂体内部叠置关系认识不清,导致油田开发效果不佳。为了表征深水浊积水道的发育期次和内部充填结构,对深水浊积复合水道期次划分和边界识别进行了研究,在传统的地震属性分析基础上,形成了应用地震属性分析技术识别深水浊积复合水道边界和期次划分的新思路。首先进行属性优选,采用谱分解和多属性融合的技术手段,结合地层切片分析,综合测井资料来刻画深水浊积复合水道边界和期次,这对复合水道砂体叠置关系和连通性的认识有很大的帮助,指导了油气田开发方案的设计以及优化。

In the early stage of development,it is difficult to describe the development period of the deep water turbidity channel and the internal structure of the sand body because of the lack of logging data,which leads to the poor development of the oilfield.In order to characterize the developmental period and internal structure of the deep water turbidity channel,it is studied that how to identify the boundary and internal structure of the deep water turbidity composite channel.Based on the traditional seismic attributes analysis,a new method for identifying the boundary and stage division of the deep water turbidity composite channel is formed by using seismic attribute analysis.Attribute optimization,adopting spectral decomposition and multi attribute fusion,strata slice analysis,and combining logging data to characterize the boundary and internal structure of the deep water turbidity composite channel.This is help to know superimposed relationship and connectivity of deep water turbidity composite channel,which is to guide the design and optimization of oil and gas field development plan.