Basic Principles of Induction Logging

Emeritus Professor A.Kaufman has 28 years’ experience of teaching at the geophysical department in Colorado School of Mines He received his PhD. in Institute of Physics of the Earth (Moscow) and degree of Doctor of Science from the Russian Academy of Science . From 1981 to 20015 he published 14 monographs by Academic Press and Elsevier, describing different geophysical methods. Most of them are translated and published in Russia and China. He also holds three patents, which found application in the surface and borehole geophysics. A. Kaufman is a honorary member of SEG. Dr. Itskovich is a Technical Advisor with Baker Hughes who has been employed since 1994. He received his Ph.D. degree in geophysics from the Russian Academy of Science, and an M.S. in electro-physics from Novosibirsk Technical University. Gregory’s research interests and experience include advanced EM measurements, mathematical modeling and inversion of well-logging resistivity and NMR data. He has published 40 professional papers and holds more than 50 U.S. patents, and is the inventor of several geophysical instruments that have been commercialized on a worldwide basis.

• 1. System of equations of the stationary electric and magnetic fields2. Physical laws and Maxwell’s equations 3. Propagation and diffusion of electromagnetic field in a non-conducting medium4. Propagation and diffusion in a uniform medium5. Quasi-stationary field of magnetic dipole in a uniform medium6. Geometrical factor theory of induction logging7. Integral equations and their approximations8. Electromagnetic field of a vertical magnetic dipole in the presence of cylindrically-layered formation9. Quasi-stationary field of the vertical magnetic dipole in a bed of finite thickness10. Transient field of magnetic dipole on the borehole axis11. Induction logging with transversal coils12. The influence of anisotropy on the fieldAppendix: Electromagnetic response of eccentred magnetic dipole in cylindrically-layered media