【摘要】 SLG地区二叠系盒8气藏属典型的低孔低渗岩性气藏,纵横向上储层具有强烈的非均质性,流体性质也表现出较大的差异。基于AVO理论的道集分析、叠前弹性反演在SLG气田得到广泛应用。AVO属性对储层含气与否较为敏感,但对含气多少却难以区分,对流体性质更是无法准确判断。针对SLG地区三维地震区块资料的特点,形成一套流体预测技术流程,对储层流体平面展布进行预测。更多还原

【Abstract】 The permian Carboniferous He8 section in Sulige gasfield is a typical lithologic gas reservoir with low permeability and low porosity. Both horizonta and vertical physical properties and fluid distribution show heterogeneityl. Based on AVO theory,elastic impedance inversion,and AVO attributes inversion have been used widely and sussessfully in Sulige gasfield. It is very difficult to discern the amount of gas in AVO respond in reservoir,because of its uncertainty,though it is sensitive to the existing of gas. And it is dubious in predicting the fluid property with AVO. In this paper,based on the characteristics of 3D seismic data,we established a set of flow chart for fluid prediction in SLG 3D and predicted the distribution of fluid level by AFI.更多还原