用链匹配算法自动拾取同相轴

PICKING UP THE EVENTS AUTOMATICALLY BY CHAIN MATCHING ALGORITHM

地质矿产部石油物探研究所

本文在分析文献[3]的同相轴自动拾取方法优缺点的基础上,针对文中方法存在的缺点进行了改进。本文方法与文献[3]中方法相比,具有四个特点:第一,除了可以考虑单向波形,还可以考虑双向波形;第二,采用了归一化的权系数选择方法:第三,计算速度快。第四,计算描述同相轴的有关参数。实际剖面的计算结果较好地拾取了剖面上的同相轴,验证了所作改进的合理性和实用性。

In accordance with the defects shown on REFERENCE [4], some improvements have been made for the automatic picking of the events. Comparing with the technique described in REFERENCE [4], four definite merits could be seen here in this paper: the first, the waveform could be examined in two opposite directions inversed with each other, the second, the normalized selections of the weight coefficient was adopted; the third,the calculation is time-saving and the last one, not only the event-parameter could be calculated, but it could also be delineated. The reasonableness and the practicalness of such improvements have already been proved by the picking up of the events from the real data collected from the field.