| 任意形状线电流源三维地电场研究 |
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| 引用本文： | 刘地渊,徐凯军,赵广茂,李桐林.任意形状线电流源三维地电场研究[J].地球物理学进展,2006,21(2):395-399. |
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| 作者姓名： | 刘地渊 徐凯军 赵广茂 李桐林 |
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| 作者单位： | （1.中石化中原油田，濮阳 457532； 2.吉林大学地球探测科学与技术学院，长春 130026） |
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| 摘 要： | 利用套管供电，通过地表观测视电阻率研究油田注水分布和剩余油分布近来在油田开发中得到了应用.由于现在的油井和水井有很多是倾斜的，因此，研究倾斜线电流源三维地电场是必要的.本文针对任意形状线电流源，从异常电位所满足的微分方程出发，利用有限差分方法实现了任意形状线电流源三维地电场正演.正演结果表明相同模型使用倾斜线源和直线源其地表响应有较大的差别，实际应用中不能将井斜较大的井当作垂直线源，而应以倾斜线源处理.
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| 关 键 词： | 井-地电阻率成像 倾斜线源 垂直线源 异常电位 |
| 文章编号： | 1004-2903（2006）02-0395-05 |
| 收稿时间： | 2005-12-10 |
| 修稿时间： | 2006-02-10 |
The study of three dimensional geo electric field of arbitrary shape line sources |
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| LIU Di-yuan,XU Kai-jun,ZHAO Guang-mao,LI Tong-lin.The study of three dimensional geo electric field of arbitrary shape line sources[J].Progress in Geophysics,2006,21(2):395-399. |
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| Authors: | LIU Di-yuan XU Kai-jun ZHAO Guang-mao LI Tong-lin |
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| Institution: | 1. Zhongyuan Oil field of Sinopec Corp. Puyang 457532, China; 2. College of Geoexploration Science and Technology, Jilin University, Changchun 130026,China |
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| Abstract: | Recently,resistivity method with vertical line source has been used to study the distribution of injection water and remain oil.Now,a lot of the oil wells and the water wells are slant.Therefore it is necessary to study slant line source forward problem.In this paper,we completed the forward calculation of arbitrary shape line source with finite-difference method to anomalous potential's differential equation.The forward results show that the surface response is different when using vertical line source and slant source for the same model.we shouldn't consider slant well as vertical line source in practical application. |
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| Keywords: | well-surface resistivity image slant line source vertical line source anomalous potential |
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