分层速度和平均速度时深转换运用比较

CoMParison of Layered Velocity and Average Velocity in the Time-depth Conversion of Seismic Exploration

地震勘探中用地层速度和旅行时间来进行时深转换获得目的层的埋藏深度。其中速度的选定是关键,根据实际地质情况选取不同的速度计算方式往往计算的结果有所偏差。该文拟就分层速度和平均速度在实际地震勘探中的运用情况进行比较,浅议如何根据实际需要优先选取层速度或者平均速度。

Seismic layered velocity and travel time is used to convert target depth in the seismic exploration and the selection of speed is the key. Results are often deviated according to the actual geological conditions to select a different velocity method for calculating. This paper is about coMParison of lay- ered velocity and average velocity in the time - depth conversion of seismic exploration in the practical use and discussion on How to select layered velocity or average velocity as a priority.