新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (6): 764-766.

• 应用技术 • 上一篇    下一篇

照明分析中面向目标的波场延拓算法

首皓1, 孙鲁平1, 刘红伟2, 首晓洁3   

  1. 1.中国石油 勘探开发研究院,北京 100083;
    2.中国科学院 地质与地球物理研究所,北京 100029;
    3.西安长庆科技工程有限责任公司,西安 710018
  • 收稿日期:2009-02-12 修回日期:2009-05-18 发布日期:2020-10-23
  • 作者简介:首 皓 （1979-）,男,陕西汉中人,博士,石油物探, （Tel）13810315435（E-mail）shouhao@petrochina.com.cn.
  • 基金资助:
    国家重点基础研究发展计划（2007CB209505）和教育部博士后科研基金（20080430527）联合资助

Target-Oriented Wave Field Continuation Method for Illumination Analysis

SHOU Hao1, SUN Lu-ping1, LIU Hong-wei2, SHOU Xiao-jie3   

  1. 1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
    2. Institute of Geology and Geophysics, CAS, Beijing 100029, China;
    3. Xi'an Changqing Technology Engineering Co. Ltd., Xi'an, Shaanxi 710018, China
  • Received:2009-02-12 Revised:2009-05-18 Published:2020-10-23

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摘要： 利用照明分析设计观测系统,可以避免常规观测系统设计中因地下介质均匀假设带来的误差。对波动方程正演算法中的单程波方法进行了近似,提出了一种适合三维复杂介质且面向目标区域的快速波场延拓算法,可以直接对目标区域进行照明分析,无需从地表逐层延拓,计算精度与常规单程波方法相当。通过三维模型进行检验,证明了该方法的可行性。

关键词: 观测系统, 波场延拓, 单程波, 照明分析

Abstract: The seismometer pattern layout design with illumination analysis can avoid the errors from hypothesis of homogeneous media in its conventional system design. The approximated analysis of one-way wave method in forward algorithm of wave equation is conducted, and a quick wave-field continuation algorithm for 3-D complex media and target-oriented area is proposed to directly make an analysis of target area without bed-by-bed continuation from the surface. The precision of this method is similar to the conventional one-way wave method. The verification of 3-D model indicates that this method is feasible.

Key words: seismometer pattern layout, wave field continuation, one-way wave, illumination analysis

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