![]() In the present study, an anisotropic medium is considered thus, the determination of this kind medium requires five parameters in a vertical well. However, in an anisotropic medium these parameters depend on their directions, so they must at least be a vector. In an isotropic medium, constitutive parameters are the same in all directions thus, they are scalars in that case. Since these parameters seldom vary for most rocks and minerals, most scientists generally assume dielectric permittivity and magnetic permeability of the medium as free space for convenience. Relative magnitudes of these parameters are quite distinct as very well-known properties of rocks. These parameters are used to interpret the subsurface with different geophysical methods and well-logging types. A hypothetical instrument should measure gradient fields both electric and magnetic types as well.Ĭonductivity, permittivity, and permeability of a medium are known constitutive parameters. Operating frequency range is also quite large. These calculated parameters from the field measurement are horizontal and vertical conductivity, permittivity, and magnetic permeability. They are tensors, so parameters have at least both horizontal and vertical components in a uniaxial medium. Constitutive parameters are not a scalar in this case. ![]() In such a medium, constitute parameters can be calculated by combining electric and magnetic field measurements. Keywords: Electrical Anisotropy Triaxial Measurement Electric and Magnetic Dipoles Induction Well LoggingĪ hypothetical electric and magnetic induction tensor is considered in an anisotropic medium. Department of Geophysical Engineering, Kocaeli University, Kocaeli, TurkeyĮmail: Augrevised Septemaccepted October 23, 2012 ![]()
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