【摘要】 层析成像技术被广泛应用于矿产勘查、油气开发及工程勘查和检测领域。基于运动学特征的走时层析成像方法计算效率较高,但精度较低。基于动力学特征的波动方程层析成像方法精度较高,但计算时间较长。Wavetracing层析成像方法在射线追踪方面简单、高效,能够提供与有限频率实际资料相一致的传播路径和旅行时。应用该方法对胜利油田垦71地区多对井间地震资料进行的层析成像速度反演取得了良好结果。更多还原

【Abstract】 Tomography is widely used in mineral prospecting,oil ex- ploitation,and engineering exploration and monitoring.Trav- eltime tomography is fast,but low in precision.Wave equation tomography is slow,but high in precision.Wavetracing tomo- graphy is simple and effective in ray-tracing,and can provide propagation paths and travel times that are consistent with band-limited real data.The method is illustrated with real cr- osswell seismic data from Ken 71 area,Shengli Oilfield.De- sired results have been obtained.更多还原