Effects of hole condition and strata on cross-well electromagnetic field

doi:10.7623/syxb200602024

Editorial office of ACTA PETROLEI SINICA ›› 2006, Vol. 27 ›› Issue (2): 111-115.DOI: 10.7623/syxb200602024

• Petroleum Engineering • Previous Articles Next Articles

Effects of hole condition and strata on cross-well electromagnetic field

Li Zhigang¹, Shao Changjin², Tang Lian²

1. Modern Education Technology Center, Peking University, Beijing 100871, China;
2. Department of Math & physics, China University of Petroleum, Beijing 102249, China

Received:2005-03-26 Revised:2005-09-23 Online:2006-03-25 Published:2010-05-21

井况及地层对井间电磁场的影响

李志刚¹, 邵长金², 唐炼²

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

作者简介:李志刚,男,1980年1月生,2005年获中国石油大学(北京)硕士学位,现工作于北京大学,主要从事井间电磁成像等方面的研究工作.E-mail:lzg@pku.edu.cn
基金资助:
国家自然科学基金项目(No.90210018)资助

Abstract

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.

Key words: cased hole, hole condition, strata, cross-well electromagnetic field, low-frequency electromagnetic wave, formation resistivity, numerical simulation

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.

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

CLC Number:

P631.8

Li Zhigang, Shao Changjin, Tang Lian. Effects of hole condition and strata on cross-well electromagnetic field[J]. Editorial office of ACTA PETROLEI SINICA, 2006, 27(2): 111-115.

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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Effects of hole condition and strata on cross-well electromagnetic field

井况及地层对井间电磁场的影响

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