| 任意广角波动方程深度偏移参数优化分析 |
| |
| 引用本文： | 孙歧峰,白清云.任意广角波动方程深度偏移参数优化分析[J].CT理论与应用研究,2011,20(1):29-38. |
| |
| 作者姓名： | 孙歧峰 白清云 |
| |
| 作者单位： | 孙歧峰,SUN Qi-feng(中国石油大学(华东)计算机与通信工程学院,山东,东营,257061);白清云,BAI Qing-yun(中海石油(中国)有限公司天津分公司勘探开发研究院,天津,300452) |
| |
| 基金项目： | 教育部新世纪优秀人才支持计划，山东省自然科学基金，山东省科技攻关计划 |
| |
| 摘 要： | 强横向变速和陡倾角介质的成像问题是地震偏移成像的难点.本文在频率-空间域利用有限差分高阶分裂法求解任意广角波动方程实现了地震偏移成像.试验表明,参考速度的选取是影响成像精度的关键因素.脉冲响应测试表明通过优化参数任意广角波动方程能够以较低阶的方程获得较大的偏移角度.Marmousi模型数据叠前深度偏移试验表明,该方法能...
|
| 关 键 词： | 任意广角波动方程 频率-空间域 深度偏移 参数优化 |
Depth Migration Based on Arbitrarily Wide-Angle Wave Equation with Parameters Optimization |
| |
| SUN Qi-feng,BAI Qing-yun.Depth Migration Based on Arbitrarily Wide-Angle Wave Equation with Parameters Optimization[J].Computerized Tomography Theory and Applications,2011,20(1):29-38. |
| |
| Authors: | SUN Qi-feng BAI Qing-yun |
| |
| Affiliation: | SUN Qi-feng1,BAI Qing-yun2 1.College of Computer and Communication Engineering,China University of Petroleum,Dongying 257061,China 2.Exploration and Development Institute of Tianjin Branch Company,CNOOC,Tianjin 300452,China |
| |
| Abstract: | It is difficult to image the geological structure with strong lateral variation and steep dip. On the basis of the Arbitrarily Wide-Angle Wave Equation(AWWE) ,we implemented migration with finite difference high-split scheme in frequency-space domain. Optimization of the velocity parameters is a key factor in the accuracy of imaging. The test of impulse response clears that the low order AWWE can be adapted to higher steep dips by optimization of the parameters. The pre-stack migration of Marmousi data show... |
| |
| Keywords: | AWWE frequency-space domain depth migration optimization of parameters |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
