相干体与方差体技术在全三维地震资料解释中的应用

近几年迅速发展起来的相干体与方差体技术是研究三维数据体中的不连续性特征及相邻道地震信号之间相似性的解释性处理技术,有利于在三维地震资料解释之前,了解研究区内断层的展布情况,缩短三维地震资料解释周期,提高解释效率和精度。该技术充分利用了三维资料中每个CDP点的信息,避免了因常规抽线解释而遗漏小断层。该项技术在全三维地震解释中起着重要的作用,应用效果明显。本文介绍了方法原理和基于相干体与方差体技术的全三维地震资料解释思路,展示了相干体与方差体技术的应用实例。

APPLICATION OF THE TECHNOLOGY OF RELEVANCE COHERENCE CUBE AND VARIANCE CUBE IN INTERPRETATION OF FULL 3-D SEISMIC DATA

The technology of relevance cube and variance cube developed rapidly in recent years is a interpretative treatment technology to research the similarity between discontinuity in three-dimension data cube and neighboring seismic signal.It is conducive to recognition of the distribution of faults in the studied area before interpretation of three-dimension seismic data,to shortening the interpretation period of three-dimension data and to improvement of interpretation efficiency and precision.The technology is to make full use of the information of each CDP point and avoid leave-out of small faults with conventional sampling interpretation.It plays an important role in interpretation of all-three-dimension seismic data and takes good effect.This paper introduced the method and principle as well as the train of thought of interpretation based on relevance cube and variance cube and displayed the application example of the technology.