【摘 要】
：
受斜磁化的影响,磁异常特征复杂、不便于解释.强剩磁的存在、低纬度化极的困难等问题常常迫使人们直接针对斜磁化磁异常开展处理与反演.为了减小斜磁化的影响,磁异常总梯度模
【机 构】
：
中海油研究总院勘探研究院,中国地质大学(武汉)地球物理与空间信息学院地球内部多尺度成像湖北省重点实验室,
论文部分内容阅读
受斜磁化的影响,磁异常特征复杂、不便于解释.强剩磁的存在、低纬度化极的困难等问题常常迫使人们直接针对斜磁化磁异常开展处理与反演.为了减小斜磁化的影响,磁异常总梯度模、分量模、磁异常梯度张量等处理方法得到广泛应用.本文基于理论分析,结合模型实验,分析现有斜磁化磁异常处理方法的优缺点,指出磁异常总梯度模、分量模、磁异常梯度张量等处理方法可能引起错误的地质解释,而采用适当的化极计算则可以明显改善解释效果.
Due to the influence of oblique magnetization, the characteristics of magnetic anomalies are complex and inconvenient to explain.The problems such as the strong remanence, the difficulty of low latitude and so on often force people to deal directly with the inversion and inversion of oblique magnetic anomalies.In order to reduce the bias magnetization Influence, total magnetic anomaly gradient mode, component mode, magnetic anomaly gradient tensor and other processing methods are widely used.Based on theoretical analysis and model experiments, this paper analyzes the advantages and disadvantages of the existing oblique magnetized magnetic anomaly processing methods, points out the total magnetic anomaly gradient Modalities, component modes, and magnetic anomaly gradient tensor may lead to erroneous geologic interpretation, while using appropriate polar calculation can obviously improve the interpretation.
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