岩性油气藏 ›› 2012, Vol. 24 ›› Issue (5): 12–18.doi: 10.3969/j.issn.1673-8926.2012.05.002

• 学科前缘 • 上一篇    下一篇

地震波反演成像方法的理论分析与对比

任浩然1,王华忠2,黄光辉3   

  1. 1.浙江大学地球科学系,浙江杭州310027; 2.同济大学海洋与地球科学学院,上海200092; 3.中国科学院计算数学与科学工程计算研究所,北京100190
  • 出版日期:2012-10-20 发布日期:2012-10-20
  • 第一作者:任浩然(1982-),男,浙江大学在站博士后,研究方向为地震波反演成像方法与应用。地址:(310027)浙江省杭州市西湖区浙大路38号浙江大学地球科学系地球物理教研室。电话:(0571)87951196。E-mail:renhaoran@gmail.com
  • 基金资助:

    国家科技重大专项“山前带地震高精度成像技术研究”(编号:2011ZX05005-005-008HZ)和国家重点基础研究发展规划“973”项目 “基于散射点道集的全波形速度反演与成像”(编号:2011CB202402)联合资助。

Theoretical analysis and comparison of seismic wave inversion and imaging methods

REN Haoran1, WANG Huazhong2, HUANG Guanghui3   

  1. 1. Department of Earth Sciences, Zhejiang University, Hangzhou 370012, China; 2. School of Ocean and Earth Science, Tongji University, Shanghai 200092, China; 3. Institute of Computational Mathematics and Scientific/Engineering Computing, Beijing 100190, China
  • Online:2012-10-20 Published:2012-10-20

摘要:

全波形反演、旅行时层析、最小二乘偏移和偏移速度分析具有相同的反演框架,以Bayes 估计理论 为基础对这些方法进行了分析和对比,证明了全波形反演能够利用最多的地震信息,但多重因素的叠加 加大了其实用性的难度。针对这一问题,以特征波形反演为指导,对提取的地震波场的特征化信息进行了 地震反演,并对其反演方案进行了理论分析和对比。

关键词: 成岩作用, 成岩阶段, 储层, 沙三段, 板桥凹陷

Abstract:

Based on the mathematical and physical theory of wave equation, the full waveform inversion, travel-time tomography, least squares migration and migration velocity analysis can be included into a same inversion frame. Based on Bayes theory, this paper analyzed and compared these methods. It is proved that the full waveform inversion can use most seismic information, but the overlying of different information increases the difficulty of its usage. Under the guidance of signature waveform inversion, the characterized information were extracted to carry out seismic inversion, and several schemes were analyzed and compared theoretically.

Key words: diagenesis, diagenetic stage, reservoir, Sha 3 member, Banqiao Sag

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