地球物理学进展 ›› 2019, Vol. 34 ›› Issue (1): 221-228.doi: 10.6038/pg2019CC0355

• 应用地球物理学Ⅰ(油气及金属矿产地球物理勘探) • 上一篇    下一篇

地震绕射波分离方法研究进展

王志辉1,2,吕庆田2,3,刘振东1,2,*(),严加永1,2   

  1. 1. 中国地质科学院,北京 100037
    2. 中国地质科学院地球深部探测中心,北京 100037
    3. 中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京 100037
  • 收稿日期:2018-08-13 修回日期:2018-12-13 出版日期:2019-02-20 发布日期:2019-04-15
  • 通讯作者: 刘振东 E-mail:lzd777@163.com
  • 作者简介:王志辉,男,1982年生,黑龙江宝清人,博士,主要从事矿产勘查、城市地质和地下空间地球物理探测方法研究工作.(E-mail: wangzhihui1982@outlook.com)
  • 基金资助:
    中国地质调查项目(DD20179611);中国地质调查项目(DD20160082);国家重点研发计划(2016YFC0600201);基本科研业务费专项联合资助.(JYYWF20180301)

Progress of seismic diffractions separation methods

WANG Zhi-hui1,2,LÜ Qing-tian2,3,LIU Zhen-dong1,2,*(),YAN Jia-yong1,2   

  1. 1. Chinese Academy of Geological Sciences, Beijing 100037, China
    2. China Deep Exploration Center-SinoProbe Center, Chinese Academy of Geological Sciences, Beijing 100037, China
    3. MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, CAGS, Beijing 100037, China
  • Received:2018-08-13 Revised:2018-12-13 Online:2019-02-20 Published:2019-04-15
  • Contact: Zhen-dong LIU E-mail:lzd777@163.com

摘要:

随着油气田勘探和开发的需求,利用地震绕射波成像探测地下不规则地质体边界和小尺度构造已经成为地震偏移成像的一个热点研究方向.从勘探地球物理学家发现地震绕射波开始,学者们致力于研究如何在常规反射地震记录中分离并提取出绕射波.过去半个多世纪,关于绕射波的研究取得了显著进展并成功应用到实际生产.本文总结了以往关于绕射波分离技术的研究成果,介绍绕射波的概念及其运动学和动力学特征,按照技术方法进行总结和分类并通过选择具有代表性的实例来向读者展示不同方法的分离效果.

关键词: 地震绕射波, 地震成像, 高分辨率, 波场分离

Abstract:

In need of exploration and development of oil and gas fields, detection of the boundary of an irregular geological body and small scale structures based on seismic diffractions has been the hotspot of seismic imaging. Since exploration geophysicists recognized seismic diffractions, researchers have been working on how to separate diffractions from conventional seismic reflection records. Over the past half a century, researches on diffractions have a great progress and been applied to solve the problem successfully. In this paper, we summarize the past research findings and introduce the concept of diffraction and the characteristic of kinematics and dynamics. According to different methods, we classify diffractions separation technology and show some typical cases to readers.

Key words: Seismic diffraction, Seismic imaging, High resolution, Separation of wave field

中图分类号: