| 井况及地层对井间电磁场的影响 |
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| 引用本文： | 李志刚,邵长金,唐炼.井况及地层对井间电磁场的影响[J].石油学报,2006,27(2):111-115. |
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| 作者姓名： | 李志刚 邵长金 唐炼 |
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| 作者单位： | 1. 北京大学现代教育技术中心, 北京, 100871;2. 中国石油大学数理系, 北京, 102249 |
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| 摘 要： | 以电磁场散射理论为基础,运用有限元法求解过套管井的井间电磁场问题,在低频电磁波的情况下进行了数值模拟,分析了金属套管对井间电磁测井的影响.同时,对比分析了不同井况和地层条件下井间电磁场的特征.结果表明,用低频电磁波过套管测量地层电阻率的井间测井方法是可行的.该结果可为套管井的井间电磁测井仪器的研制、井间电磁层析成像技术及测井解释提供一定的依据.
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| 关 键 词： | 套管井 井况 地层 井间电磁场 低频电磁波 地层电阻率 数值模拟 |
| 文章编号： | 0253-2697（2006）02-0111-05 |
| 收稿时间： | 2005-03-26 |
| 修稿时间： | 2005-09-23 |
Effects of hole condition and strata on cross-well electromagnetic field |
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| Li Zhigang,Shao Changjin,Tang Lian.Effects of hole condition and strata on cross-well electromagnetic field[J].Acta Petrolei Sinica,2006,27(2):111-115. |
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| Authors: | Li Zhigang Shao Changjin Tang Lian |
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| Affiliation: | 1. Modern Education Technology Center, Peking University, Beijing 100871, China;2. Department of Math & physics, China University of Petroleum, Beijing 102249, China |
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| Abstract: | On the basis of scattering theory of electromagnetic field, the electromagnetic fields in a cased hole were calculated with finite element method, and numerical simulation was conducted in the condition of low-frequency electromagnetic wave. The effects of casing pipe on cross-well resistivity logging were analyzed. The characters of cross well electromagnetic field in different conditions of hole and strata were compared and analyzed. The result showed that the cross-well logging with low-frequency electromagnetic wave is feasible for measuring formation resistivity. This result provides a theoretical foundation for interpretation of logging data of some cased wells and for development of logging tools. |
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| Keywords: | cased hole hole condition strata cross-well electromagnetic field low-frequency electromagnetic wave formation resistivity numerical simulation |
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