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PubMed
Article by Shen M
Article by Du L
Article by Lyu S
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���ִ�ѧ ���蹤��ѧԺ, ���� 130026
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Influence on surface electric field by different supply methods of borehole-surface electrical method
SHEN Ming-xie, DU Li-zhi, LYU Shou-hang
College of Construction Engineering, Jilin University, Changchun 130026, China
Abstract: In order to investigate the difference between the line power supply and the point power supply, the authors establish a physical model in the laboratory using a sink. Since the water has low resistance relative to the oil, in the experiment, copper plate is used to analog the low resistance body, copper rod is used to analog line power supply, copper column is used to analog point power supply.By changing the relative position of low resistance body and power supply, the spatial distribution of the surface potential is tested to analyze the spatial distribution of the oil displacing medium (water). The experimental results show that different power supply methods illustrate different electric field characteristics, of which the line power supply method has a greater impact on the electric field, with poor recognition effect on the low resistance body, whereas the point power supply method shows better effect on identifying and monitoring the low resistance body.
Keywords: borehole-surface electrical method   low resistance body   line power supply   point power supply  
�ո����� 2017-11-10 �޻����� 2018-01-19 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2018.02.027
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