Method of carrying out an investigation by electromagnetic induction of a formation surrounding a borehole drilled with a coating, method for carrying out an investigation by electromagnetic induction in a formation surrounding a borehole drilled with a Reves Investment,System for performing measurements by electromagnetic induction in a formation surrounding a borehole drilled with EMM coating, and method for compensation of attenuation measurements of investigation by the electromagnetic induction

摘要

Method of carrying out an investigation by electromagnetic induction of a formation surrounding a borehole drilled with a coating, method for carrying out an investigation by electromagnetic induction in a formation surrounding a borehole drilled with a Reves Investment,System for performing measurements by electromagnetic induction in a formation surrounding a borehole drilled with a coating.And method for compensation of attenuation measurement research for the electromagnetic induction are described methods and associated systems for determination of the attenuation factor by coating for various frequ00fau00eancias measurements of impedance of a coil wiring The transmission or reception. The compensation is based on the two relations.The first relationship occurs between one or more parameters of the impedance obtained by measurement, and the product of the conductivity of the coating, thickness of coating and frequ00fau00eancia electromagnetically. The second relationship occurs between the correction factor for coating and the product of the conductivity of the coating, thickness of coating and frequ00fau00eancia electromagnetically.