【摘要】 岩石物理理论模型是地震岩石物理研究的基础。分析了Gassmann模型的机理,探讨了该模型的适用性和关键参数。在此基础之上,提出了基于Gassmann模型正反演相结合的横波速度曲线优化估算方法,通过对Gassmann模型的解析和转换推导,分析了横波计算误差的影响因素,研究了孔隙流体区分的敏感属性参数优选方法。研究结果为利用地震资料进行储层表征和流体预测提供了实用技术系列和指导方法。更多还原

【Abstract】 Theoretical model of rock physics is a foundation in study of seismic rock physics.This paper reviewed the mechanism of Gassmann model and studied its adaptability and key parameters.Based on Gassmann model,a new method is proposed to estimate S-wave velocity from P-wave velocity using forward and inverse modeling.Factors affecting S-wave velocity calculation were analyzed,and attributes sensitive to fluid were investigated.The result could provide a practical technology for seismically characterizing and predicating reservoir.更多还原