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Study On "Bipole-Dipole" Global IP Method Of3D Simulation And The Feasibility

Posted on:2014-06-15Degree:MasterType:Thesis
Country:ChinaCandidate:C ZhangFull Text:PDF
GTID:2250330422461800Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Induced polarization method (IP method for short), is a kind of electrical prospectingmethod that is based on the differences among the underground rock, ores,which occur underartificial electric field (induced polarization effect) by physical and electrochemicaleffects.According to the different nature of supply current, is divided into DC (time domain)IP law and Exchange (frequency domain), IP method. After more than half a century ofpractice that has proved that IP method has more significant advantages than other electricprospecting methods among the exploration of all kinds of metal ore.However, due to devicelimitations when traditional IP method is working in the field. It is required to movefrequently and re-erect equipment, so result in reducing the efficiency of the work andwasting a massive of labor and time. Someone has put forward a "Bipole-Dipole" device toresolve the problem.This article begins with a review of induced polarization method research andapplication status and sum of the existing numerical simulation methods of inducedpolarization method. Make the simple presentations of ANSYS finite element simulationsoftware and introduce the process-related issues and main steps when it induces polarizationmethod numerical simulation.Using ANSYS APDL programming language included with thesoftware program, structural geology, Earth models, set the parameters, the model"Bipole-Dipole" global numerical simulation of IP law, and comparative analysis ofconventional methods "Bipole-Dipole" domain-wide IP law with the exception of modelcharacteristics, yield more satisfactory results. Final summary of the full-text, which describesthe reality significance of"Bipole-Dipole"and global induced polarization method and theprospects of ANSYS finite element simulation software in Geophysics broad application.
Keywords/Search Tags:Induced polarization method, Finite element, Numerical simulation, "Bipole-Dipole" global IP
PDF Full Text Request
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