现有AVO分析方法基于纵波、横波速度比近似为2这一假设条件,且不能反映界面的密度变化.结合苏里格气田致密碎屑岩储层特点,提出不完全依赖速度比假设的,基于纵波速度变化率、横波速度变化率和密度变化率的三参量非线性AVO分析方法.数值模拟结果表明,提出的近似方法所得的反射系数介于Zoeppritz精确表达式和Aki&Richard近似之间,苏五试验区流体预测结果与实钻井吻合较好,证实了方法的有效性.%The ratio of compressional velocity and shear velocity is assumed about 2 by all of the AVO analysis methods at present, and this can not represents the variation of the density at the interface. This paper establishes a new approximation equation of AVO which can describe the rate of v?, vs and density. The calculation of the reflection coefficient of the theoretical model and the analysis of the actual data show that the approximation method has high precision. The predicted distribution of the potential gas field by the method discussed in the paper is accurate, and the prediction result of Su-5 region coincides with the drilling well, which approves the validity of the method.
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机译：楔形切断型工业配件的侧边布置，特别是垂直和水平安装的大闸门阀门VALVESGANA V PROMYSHLENNOJJ武装，GLAVNYM VOKAZOKAVOKAKOKAKOKAVOKAKOKAKOKAVOKAKOKAKOKAKOKAVOKAKOKAKIKOVOKANYKOVOKANYKAVOKANYKAVOKANYKAVOKAKOKAKIKOVOKANYKAVOKAKIKO
机译：楔形切断型工业配件的侧边布置，特别是垂直和水平安装的大闸门阀门VALVESGANA V PROMYSHLENNOJJ武装，GLAVNYM VOKAZOKAVOKAKOKAKOKAVOKAKOKAKOKAVOKAKOKAKOKAKOKAVOKAKOKAKIKOVOKANYKOVOKANYKAVOKANYKAVOKANYKAVOKAKOKAKIKOVOKANYKAVOKAKIKO
