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dian chang zhong bu jun yun dao dian mei zhi de dian he fen bu ji qi ying yong
Author(s): 
Pages: 78-84
Year: Issue:  1
Journal: Journal of Xi'an Petroleum Institute(Natural Scien

Keyword:  stable electric fieldquasi—stable electric fieldnonuniform conductive mediumcharge distribution;
Abstract: Gauss Theorem and the principles of charge conservation are used to derive the charge distribution of nonuniform conductive medium in electric field. It was found that the charge distribution was related to the magnitude and direction of the electric field's intensity, and the nonuniformity of the medium, but was independent of the initial condition. It was also observed that the charge distribution was indentical for sable and quasi—stable electic fields. A preliminary discussion is made on surface charge distribution on the borehole wall and volume charge distribution in the flushed zone in a borehole by using the theoretical results.
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