CRS技术在“双复杂”地区的应用  

Application of CRS technology in“double complexity”areas

作　　者：郑军 周斌 田欢 刘远远 李秀荣 ZHENG Jun;ZHOU Bin;TIAN Huan;LIU Yuanyuan;LI Xiurong(Jianghan Company,Sinopec Geophysical Corporation,Qianjiang,Hubei 433100,China)

机构地区：[1]中石化石油工程地球物理有限公司江汉分公司,湖北潜江433100

出　　处：《江汉石油职工大学学报》2024年第5期19-21,31,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：地震勘探在复杂山地地区面临低信噪比的挑战,这主要由于近地表速度变化、非均匀介质和地下复杂构造等因素影响成像效果。CRS技术对传统CMP叠加进行了改进,提出了一种新的处理方法,有效解决低信噪比成像问题,通过优化法向入射点波波前曲率半径R_(NIP)和法向波波前曲率半径R_(N)等关键参数,CRS叠加技术显著提升了成像质量,尤其在陡倾角地区。实际应用中验证该方法在提高地震资料成像质量和信噪比方面的有效性,为复杂地区地震勘探提供了新的技术解决方案。Seismic exploration in complex mountainous regions faces challenges of low signal-to-noise ratio due to factors such as near-surface velocity changes,heterogeneous media,and subsurface complex structures.CRS technology improves traditional CMP stacking by introducing a new processing method to address low signal-to-noise ratio imaging issues.By optimizing key parameters such as RNIP(radius of curvature of normal incident point wavefront)and RN(radius of curvature of normal wavefront),CRS stacking technology significantly enhances imaging quality,especially in areas with steep dips.Field applications have proven the effectiveness of this method in improving seismic imaging quality and signal-to-noise ratio,providing new technical solutions for seismic exploration in complex areas.

关 键 词：低信噪比 CRS道集 CRS叠加 CMP叠加 

分 类 号：P618.13[天文地球—矿床学]