三维地震勘探数据处理的问题及其解决方法

三维地震勘探在十年内取得了显著的地质效果和经济效益。三维地震数据处理技术也得到了迅速的发展。但是,与二维相比,三维地震数据处理技术有许多不完善之处。本文对其中几个主要问题进行分析并提出解决方法。这些问题是三维叠加速度分析、三维静校正和叠前三维偏移等处理方法。

ON THE PROBLEMS OF 3-D SEISMIC DATA PROCESSING

Three-dimensional (3-D) seismic surveys have been available commercially since the 70's abroad. In china, it has been used for petroleum industry since 1980. The results achieved in China and abroad effectively illustrate the economic successes realized by this method. However, the 3-D data processing techniques have not been perfected in comparison with 2-D seismic data processing. In this paper the problems concerning 3-D data processing are discussed and the new ideas about 3-D stacking velocity analysis, computation of 3-D residual statics and 3-D prestack migration method are presented.