A study of vector intersection for borehole transient electromagnetic method
ZHANG Jie1, DENG Xiao-Hong1, TAN Han-Dong2, LYU Guo-Yin1, WU Jun-Jie1, WANG Xin-Chun1, YANG Yi1
1. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China;
2. College of Earth Geophysics and information technology, China University of Geosciences, Beijing 100083, China
Interpretation methods for borehole TEM data are mainly for qualitative interpretation, and their development has been very slow in spite of the fact that the borehole TEM method is an effective method to explore deep orebodies. This paper presents a new quantitative interpretation method based on the equivalent vortex hypothesis. According to the relevant theory, the vectors of anomaly area can intersect at a point, and the anomaly center can be calculated by using the characteristic vector of each station. The method was tested by the interpretation of the model and field data, and the results show that the vector intersection method can be used to correctly locate the center of the blind orebody beside the borehole.
张杰, 邓晓红, 谭捍东, 吕国印, 武军杰, 王兴春, 杨毅. 地—井瞬变电磁资料矢量交会解释方法[J]. 物探与化探, 2015, 39(3): 572-579.
ZHANG Jie, DENG Xiao-Hong, TAN Han-Dong, LYU Guo-Yin, WU Jun-Jie, WANG Xin-Chun, YANG Yi. A study of vector intersection for borehole transient electromagnetic method. Geophysical and Geochemical Exploration, 2015, 39(3): 572-579.
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