相对保持储层信息的地震数据处理及其地球物理与地质监控

基于地质概念的地震空间相对分辨率思想,采用合适的地震采集、处理和解释技术,可以获得小于1/4波长地质体的空间展布信息。其中,消除近地表影响条件下的相对保持储层振幅、频率、相位和波形的提高分辨率处理是地震空间相对分辨率勘探理论的重要基础之一,而相对保持处理过程中科学、高效的地震数据质量监控则是获得相对保持处理效果的重要技术保证。为此,从地震数据处理、质量监控和地质评价的角度出发,介绍了相对保持处理的主要理念和主要处理技术,重点讨论了相对保持处理的地球物理和地质监控方法。通过某滩海地区的三维地震资料处理实例分析展示了相对保持储层振幅、频率、相位和波形的提高分辨率处理效果及质量监控效果。

Seismic data processing with relatively preserving reservoir reflection information and its geophysical & geological monitoring

Based on the theory of relative spatial resolution in seismic exploration with geological concept,by adopting proper seismic acquisition,processing and interpretation techniques,spatial distribution of geologic body with thickness less than 1/4 wavelength can be detected.Among the techniques,the resolution enhancement processing with relatively preserving the reflection information of the reservoir under the condition of attenuating the near-surface effects is one of the important bases for relative spatial resolution exploration theory.While a scientific and efficient QC flow is a guarantee of success.Therefore,from the aspects of seismic data processing,QC and geological evaluation,the main concept and techniques of the processing with relatively preserving reservoir reflection information were introduced,which emphasized on the geophysical and geological monitoring.A case study on 3D seismic data in shallow sea area displays the good effect of resolution-enhancement processing and QC.