拾取叠加速度的最佳搜索算法

OPTIMUM SEARCH ALGORITHM FOR PICKING THE STACKING VELOCITIES

1. 成都科技大学;2. 地质矿产部石油物探研究所

用计算机自动拾取叠加速度,并进而得到层速度等信息,对实现地震资料处理自动化和计算机进行综合地质解释有着十分重要的意义。在文献[1][2]中,曾先后提出过利用图的最小生成树的模型和方法自动拾取叠加速度,并取得了一定的效果。本文研究了一种新的自动提取叠加速度的方法:极小化拾取风险的最佳搜索算法。 通过对实际资料进行试验,结果表明方法是有效的,现已作为一个模块引入PDP-11/45的prospector系统中,并在生产中试用。

To pick the stacking velocity by computerization can provide useful information for interval velocity etc. It is of great immediate significance in realizing automatic seismic data processing and their integrated geological interpretation. Reference [1] and [2] suggest an approach of minimum span tree for automatic pick of the stacking velocity. Some positive results are obtained. A new method for automatic pick of stacking velocity, an optimum search algorithm with minimized pick risk is proposed.It is effective as shown by experiments in field data processing. It is prepared in the form of a module to join the PDP-11/45 PROSPECTOR system and is on trial use for production.