| 反演磁性地层界面的逐步剥离磁场法 |
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| 引用本文： | 赵百民,郝天珧,徐亚,周立宏,高嘉瑞,袁淑琴.反演磁性地层界面的逐步剥离磁场法[J].地球物理学报,2007,50(2):611-618. |
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| 作者姓名： | 赵百民 郝天珧 徐亚 周立宏 高嘉瑞 袁淑琴 |
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| 作者单位： | 1 中国科学院地质与地球物理研究所,北京 100029 2 中国石油大港油田公司,天津 300280 |
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| 基金项目： | 中国科学院知识创新重大项目(KZCX1-SW-18-01)，国家自然科学基金项目(40574038)，大港油田基础外协项目(2005-JSFW-0000-00341)资助 |
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| 摘 要： | 在对前人研究方法总结对比的基础上，本文提出了一种逐步剥离位场反演磁性地层界面的方法，该方法假定位场是由一个等效单位厚度层的等效磁化强度变化引起，通过逐步剥离位场，得到等效单位厚度层的等效磁化强度，进而求取磁性地层的起伏.本文进行了理论模型计算和野外实例处理，取得了良好效果.
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| 关 键 词： | 界面反演 等效单位厚度层 等效磁化强度 剥离 |
| 文章编号： | 0001-5733（2007）02-0611-08 |
| 收稿时间： | 2006-3-7 |
| 修稿时间： | 2006-03-07 |
The method of separation of magnetic field step by step for inversion of magnetic stratigraphic interfaces |
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| ZHAO Bai-Min,HAO Tian-Yao,XU Ya,ZHOU Li-Hong,GAO Jia-Rui,YUAN Shu-Qin.The method of separation of magnetic field step by step for inversion of magnetic stratigraphic interfaces[J].Chinese Journal of Geophysics,2007,50(2):611-618. |
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| Authors: | ZHAO Bai-Min HAO Tian-Yao XU Ya ZHOU Li-Hong GAO Jia-Rui YUAN Shu-Qin |
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| Institution: | 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2 Dagang Oilfield Company, PetroChina Company Ltd., Tianjin 300280, China |
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| Abstract: | We propose a method of separation of magnetic field step by step to retrieve magnetic stratigraphic interfaces. This method supposes that the field is generated by variation of equivalent magnetization in a unit-thickness layer. Then it obtains the equivalent magnetization of the unit-thickness layer by separating the potential field, and determines the relief of magnetic stratigraphic interfaces. In this work we have designed a model to test the method, and applied it to a case of field data processing. The result shows the method is valid. |
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| Keywords: | Inversion of interface Equivalent unit-thickness layer Equivalent magnetization Separation |
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