横波速度计算方法与应用

 横波速度可从地震横波数据或横波测井数据中获得，但这两种数据通常比较缺乏。本文探讨利用模型估算、测井约束反演和叠前波形反演等方法进行横波速度的计算，为岩石物理理论研究、地震正演模拟、地震反演分析及油气检测提供较可靠的横波速度资料。将本文总结方法应用于DY地区FSH3等井的实际资料测算，取得了良好效果。

Computational approach of S-wave velocity and application

S-wave velocity can be obtained from S-wave seismic data or logging data, but often lack of both data is in real situation. The paper makes discussion on using such approaches as model evaluation, logging-constrained inversion and waveform inversion to carry out the computation of S-wave velocity, providing more valuable S-wave velocity data for petrophysical theory's study, seismic forwardsimulation and seismic inversion analysis as well as oil/gas detection. Application of the approaches the paper summarized to the practical data test in FSH-3 well of DY area achieved good results.