Successful application of optimized aperture based CRS stack in the Shengli exploration area  

胜利探区基于最优孔径的共反射面元(CRS)叠加的成功应用(英文)

作　　者：隋风贵[1] 隋淑玲[1] 李振春[2] 孙小东[2] 李芳[2] 李栋[2] 

机构地区：[1]胜利油田地质科学研究院,山东东营257015 [2]中国石油大学地球资源与信息学院,山东东营257061

出　　处：《Applied Geophysics》2009年第4期377-383,395,共8页应用地球物理（英文版）

基　　金：sponsored by the 863 Program (Grant No.2006AA06Z206);the 973 Program (Grant No.2007CB209605)

摘　　要：The common reflection surface （CRS） stack is based on the local dip of the reflector and the reflection response within the first Fresnel zone. During the CRS stack all the information given by a multi-coverage reflection dataset can be successfully utilized. By now, it is known as the best zero-offset （ZO） imaging method. In this paper high quality CRS kinematic parameter sections are obtained by a modified CRS optimization strategy. Then stack apertures are calculated using the parameter sections which finally results in the realization of the CRS stack based on optimized aperture. Thus the advantages of CRS parameters are fully developed. Application to model and real seismic data reveals that, compared with the image section by a conventional CRS stack, the image section by CRS stack based on an optimized aperture improves both the signal-to-noise ratio and the continuity of reflection events.由于CRS叠加考虑了反射层的局部特征和第一菲涅耳带内的全部反射,从而更充分地利用了多次覆盖反射数据的信息。就目前的地震资料处理技术而言,它是最佳的零偏移距成像方式。本论文利用改进型的参数优化技术,得到高质量的CRS运动学参数剖面,并利用参数剖面计算出叠加孔径,实现了基于最优孔径的CRS叠加,使CRS参数的用途得到了充分利用。模型数据和实际资料的试算表明,基于最优孔径的CRS叠加的成像剖面与传统CRS叠加剖面相比,有着较高的信噪比和同相轴的连续性。

关 键 词：Common reflection surface zero-offset section kinematic parameters optimized aperturea 

分 类 号：P631.4[天文地球—地质矿产勘探]