桂林理工大学学报2017，Vol.37Issue(2)：265-273,9.DOI:10.3969/j.issn.1674-9057.2017.02.004
基于广义等效CR模型的地井、井地激电2.5维异常响应分析
2.5-D abnormal response characteristics analysis of surfuace-to-broehole and broehole-to-surfuace IP method based on generalized effective CR model
摘要
Abstract
When electromagnetic effects ignored at low frequencies,this paper achieves 2.5-dimensional surface-to-borehole,borehole-to-surface complex finite volume resistivity based on induced polarization (GEMTIP) model of generalized effective mediumin frequency domain.Firstly,according to the boundary value satisfied by surface-to-borehole and borehole-to-surface we introduce GEMTIP to geoelectric model and derive the discrete equations of finite volume,by utilizing preprocess iterative algorithm to solve the large and sparse linear equations.Comparisons numerical solution with analytical solution of two-phase layers show the validity of this algorithm.Finally,several multiphase models can test approach.Calculated field values are obviously distributed within a certain frequency bands.The results indicate that surface-to-borehole and borehole-to-surface devices are effective for detecting the abnormal body based on GEMTIP model and provide more new ideas for induced polarization measurements of wells.关键词
地井/井地/复电阻率/GEMTP模型/有限体积Key words
surface-to-borehole/borehole-to-surface/complex resistivity/GEMTIP model/finite volume method分类
天文与地球科学引用本文复制引用
吴延强,熊彬,赵建国,罗天涯,郭胜男,李长伟,丁彦礼,李静和,陈欣..基于广义等效CR模型的地井、井地激电2.5维异常响应分析[J].桂林理工大学学报,2017,37(2):265-273,9.基金项目
国家自然科学基金项目(41164004 （）
41674075) （）
广西自然科学基金项目(2013GXNSFAA019277 （）
2016GXNSFGA380004) （）
桂林市“漓江学者”(2013)项目 （2013）
广西高等学校高水平创新团队及卓越学者计划项目 （）
