深水宽频地震资料反演及地震属性分析  

Advantage Analysis and Application of Broadband Seismic Data In Deep-water

作　　者：叶云飞 刘春成 Ye Yun-fei;Liu Chun-cheng;Liu Zhi-bin;Zhang Yi-ming(CNOOC Research Institute Co.,Ltd.Beijing 100027,China)

机构地区：[1]中海油研究总院有限责任公司

出　　处：《海洋工程装备与技术》2019年第S01期268-271,共4页Ocean Engineering Equipment and Technology

基　　金：“十三五”国家科技重大专项“南海深水区油气勘探地球物理关键技术”资助(编号:2016ZX05026001)

摘　　要：海洋宽频地震采集和处理技术的迅速发展,大幅拓宽了地震资料频带范围,目前在海洋深水区获取的地震资料频带范围可达3~120 Hz,频带宽度可达5个倍频程。与常规数据相比,宽频地震资料在改善中深层地震资料成像品质、提高复杂断层成像精度、沉积层序解释和储层刻画方面具有非常明显的优势。从地球物理角度来说,拓宽了高频和低频信息之后,对波阻抗反演、地震属性提取等方面均有明显优势。本文从实际应用角度出发,重点从地震反演和属性提取两个方面介绍了宽频地震数据的优势。理论和深水区应用的实践均表明:基于宽频数据的反演流程与常规数据反演大不相同,宽频数据可以大幅提升反演精度;基于宽频地震数据计算的地震属性可以有效降低预测结果的多解性。The offshore broadband seismic acquisition and processing technology have been developed rapidly,and the seismic frequency has been broaden effectively.At present,the frequency bandwidth of seismic data which we got in deep-water has been up to 5 octaves,and the frequency range is between 3 and 120 Hz.Compared with conventional data,broadband data has obvious advantages in improving the imaging quality of medium and deep seismic data,improving the accuracy of fault imaging,sedimentation and reservoir characterization,and greatly improving the accuracy and reliability of geophysical methods such as reservoir inversion and seismic attribute extraction.From the perspective of practical application,this paper introduces the advantages of broadband seismic data from two aspects:seismic inversion and attribute extraction.Both theoretical and application practices in deep-water show that the broadband data can greatly improve the inversion accuracy;seismic attributes which calculated based on broadband seismic data can effectively reduce the multiple solution of prediction results.

关 键 词：宽频地震 反演 鬼波 地震属性 深水 

分 类 号：TE5[石油与天然气工程—油气田开发工程]