地震数据提高分辨率处理监控评价技术

Monitoring and evaluation technology for high resolution processing of seismic data

薄互层岩性油气藏逐渐成为勘探开发的重点领域,薄层砂体对提高分辨率处理方法及效果保真性提出了更高的要求。在对地震数据提高分辨率处理的过程中,研究工作主要集中在提高分辨率处理算法方面,缺少系统全面的提高分辨率处理效果的监控评价技术。针对提高地震分辨率处理效果质量监控的迫切需求,开展了提高地震分辨率处理效果监控评价技术研究,从9个方面的属性特征对提高分辨率处理流程进行了全面可靠的监控,实现了处理效果的定量化评价分析,从而高效优选出提高分辨率处理方法、流程和参数,获得了最佳的高分辨率数据。该技术在准噶尔盆地中部庄3井地区进行了推广应用,对提高分辨率处理进行了全流程的评价分析,解决了常规处理参数试验繁琐的难题,提高地震分辨率处理后薄层砂体的识别能力显著增强。

Thin-bedded lithologic reservoirs have gradually become an important field of exploration and devel‐opment.Thin-bedded sand bodies require higher requirements for improving resolution processing methods and results fidelity.In the processing of high resolution,the research mainly focuses on high resolution algorithm,and lacks systematic and comprehensive monitoring and evaluation methods.In order to meet the urgent need of improving resolution,the research of monitoring and evaluation technology for improving seismic resolution was carried out.The processing flow of improving high resolution was monitored comprehensively and reliably from nine aspects of attribute characteristics,and the quantitative evaluation and analysis of processing results was re‐alized.Thus,the processing technology,process and parameters of improving resolution were optimized effi‐ciently,so as to obtain the best high-resolution data.This technology has been applied in Zhuang-3 well area in the central of Junggar Basin.The whole processing of improving high resolution was evaluated and analyzed.The problems of conventional processing parameter test were solved,and the recognition ability of thin sand body was significantly enhanced after improving seismic resolution.