多属性融合技术研究

Technique of seismic multi-attribute fusion

目前,在地震属性储层预测研究中,很多方法都局限于使用单一属性预测储层,这样给储层预测带来多解性,这种多解性问题可以通过多属性融合技术加以改善。在测井资料的基础上,研究地震属性特征,分析各属性对储层的敏感性,应用多属性融合技术将几种属性融合于一体,再利用井位计算出各种地震属性的融合比重,预测有利储层的发育位置。该思路有机地结合了各属性的优点,实际资料的应用显示,将其应用于储层预测取得了良好的效果。

It is a common practice that only single attribute is used at a time in reservoir prediction with seismic attribute.Such kind of practice cannot avoid the non-uniqueness in reservoir prediction.This paper proposes to diminish the non-uniqueness with a method called multiple attribute fusion.After determining the sensitivity of different attributes to reservoir based on logging data,this method fuses the sensitive attributes into one attribute by assigning different attributes with different weighs.Satisfactory results have been achieved by applying the proposed method to real data.