| ELRF深度偏移及其改进算法 |
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| 引用本文： | 贾雨,贺锡镭,胡光岷.ELRF深度偏移及其改进算法[J].成都理工大学学报(自然科学版),2004,31(4):375-381. |
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| 作者姓名： | 贾雨 贺锡镭 胡光岷 |
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| 作者单位： | 成都理工大学核技术与自动化工程学院,成都,610059;成都理工大学核技术与自动化工程学院,成都,610059;成都理工大学核技术与自动化工程学院,成都,610059 |
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| 摘 要： | ELRF深度偏移基于标量波动方程和Rytov近似方法,具有速度快、精度高等优点,是复杂构造偏移成像的有效手段之一.作者在引入该方法的基础上,针对复杂构造的偏移成像工作的特点,提出一种改进的ELRF深度偏移算法,提高了偏移方法对复杂构造的适应能力.经CX地区的实际资料处理结果表明该方法是解决某些复杂构造资料偏移成像问题的有效手段之一.
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| 关 键 词： | 复杂地质构造 深度偏移 频率波数域 |
| 文章编号： | 1671-9727(2004)04-0375-07 |
| 修稿时间： | 2003年5月5日 |
ELRF depth migration and improved algorithm |
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| JIA Yu,HE Xi-lei,HU Guang-min.ELRF depth migration and improved algorithm[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2004,31(4):375-381. |
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| Authors: | JIA Yu HE Xi-lei HU Guang-min |
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| Abstract: | ELRF (Extended Local Rytov Fourier) depth migration is based on scalar wave equation and a local application of the Rytov approximation with each extrapolation. The lateral slowness variations are taken into account in the frequency-space domain. This method possesses high computing efficiency and precision and is an efficient imaging tool for a complicated geological structure. In this paper, aiming at the characters of migration for a complicated geological structure, the authors propose an improved ELRF depth migration algorithm to ameliorate the capacity of processing migration problem for the complicated geological structure. Field data processing in CX area shows the method presented in this paper can (efficiently) improve the stability of ELRF method, can provide better imaging results for a complicated (geological) structure. |
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| Keywords: | complicated geological structure depth migration frequency-space domain |
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