【摘要】 利用地震资料研究储集体速度特征和地震响应时常需要横波速度资料,但由地震采集或测井获得的横波速度资料较少。本文利用常规测井及实验室岩石物理数据,基于Gassmann方程和Xu-White、Kuster-Toksz等岩石物理模型估算横波速度,并应用测井约束反演与叠前波形反演对估算的横波速度进行修正,最终得到符合实际地震波性质的横波速度计算方法。应用结果表明了该方法的可行性。更多还原

【Abstract】 Transverse wave data is often needed in researching velocity characteristics and seismic response of reservoir. However, the data from seismic acquisition or logging is relatively less. In the paper, transverse wave velocity is estimated from data of conventional logging and laboratory rock physics, based on rock physical models such as Xu-White and Kuster-Toks z, as well as Gassmann equation. After modified by logging constraint inversion and prestack wave form inversion, the calculation method of transverse wave velocity meeting with real seismic wave character is finally obtained. The application results shows that accurate transverse wave velocity can be obtained in the areas where is lack of geophysical transverse wave data.更多还原