地球物理学进展 ›› 2016, Vol. 31 ›› Issue (1): 300-309.doi: 10.6038/pg20160135

• 应用地球物理学Ⅰ • 上一篇    下一篇

时间域起伏自由地表正演模拟综述

李振春1, 肖建恩1, 曲英铭1, 黄建平1, 崔海标2, 陈亚亚3   

  1. 1. 中国石油大学(华东)地球科学与技术学院, 青岛 266580;
    2. 中国石油长庆油田分公司第五采气厂, 内蒙古乌审旗 017300;
    3. 中海油能源发展股份有限公司工程技术深圳分公司, 深圳 518067
  • 收稿日期:2014-12-19 修回日期:2015-05-11 出版日期:2016-02-20 发布日期:2016-02-20
  • 作者简介:李振春,男,1963,教授、博导,主要从事地震波传播与成像研究.(E-mail:)
  • 基金资助:

    国家973课题(2014CB239006,2011CB202402)、国家自然科学基金(41104069, 41274124)、中石化课题(KJWX-2014-05)和中央高校科研业务费专项基金(R1401005A)联合资助.

The review of irregular free-surface forward modeling in time domain

LI Zhen-chun1, Xiao Jian-en1, QU Ying-ming1, Huang Jian-ping1, CUI Hai-biao2, CHEN Ya-ya3   

  1. 1. School of Geosciences of China University of Petroleum(east China), Qingdao 266580, China;
    2. Gas Production Plant5 of Petrochina Changqing Oilfield Company Inner Mongolia Wushen banner 017300, China;
    3. CNOOC EnterTech-Drilling & Production Company Shenzhen Branch, Shenzhen 518067, China
  • Received:2014-12-19 Revised:2015-05-11 Online:2016-02-20 Published:2016-02-20

摘要:

起伏地表对地震波有着非常大的影响,在起伏地表条件下,地震波的解析解不存在的,所以只能用数值方法来模拟地震波在地下的传播形式,起伏地形使得各种特殊的波现象出现,散射波、波的干扰、地滚波、以及体波和面波之间的转换,都给地震勘探带来了巨大的困难,因此,国内外学者对起伏自由地表的正演模拟做了大量的研究.本文从起伏地表的数值模拟方法、网格离散形式和自由边界实现方法三个方面系统的概括了时间域起伏自由地表正演模拟的研究进展.

Abstract:

Irregular surface has a great influence on seismic wave. In the conditions of irregular surface, the analytical solution of seismic waves do not exist, so only numerical method can be used to simulate the propagation of seismic. Many special wave phenomenon appeared because of irregular surface, such as scattered wave, interference wave, ground wave, and the conversion between body-wave and surface-wave, all of which bring great difficulties to seismic exploration. So scholars at home and abroad have done a lot of research for irregular free surface. This paper systematically summarizes irregular free-surface of time domain in three aspects of numerical methods, grid discrete form and free boundary implementation.

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