Basic Principles of Induction Logging provides geoscientists with the information required to survey the electrical conductivity of rocks surrounding a borehole. The formation conductivity distribution in the borehole vicinity is critical information required in formation evaluation and geosteering applications. Developing a theory of EM logging and on understanding basic physics for both wireline and LWD logging tools, this reference furnishes valuable insights for development and use of EM techniques in practical logging applications.
Basic Principles of Induction Logging will be vital for anyone attempting to investigate, invent, and develop the next generation of EM logging tools. It will provide information required to enable operation in more challenging environments such as logging while drilling, anisotropic and thinly laminated formations, high angle and horizontal wells.
- Provides a step-by-step approach to the theory of electromagnetic methods in borehole applications starting from the simplest models
- Presents theory on the subject that has been previously hard to find, making this a must have reference for anyone working in the field
- Delivers a much needed update on the latest analysis methods, modelling techniques, drilling environments, and probe configurations
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About the Author
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.
Table of Contents1. System of equations of the stationary electric and magnetic fields
2. Physical laws and Maxwell’s equations
3. Propagation and diffusion of electromagnetic field in a non-conducting medium
4. Propagation and diffusion in a uniform medium
5. Quasi-stationary field of magnetic dipole in a uniform medium
6. Geometrical factor theory of induction logging
7. Integral equations and their approximations
8. Electromagnetic field of a vertical magnetic dipole in the presence of cylindrically-layered formation
9. Quasi-stationary field of the vertical magnetic dipole in a bed of finite thickness
10. Transient field of magnetic dipole on the borehole axis
11. Induction logging with transversal coils
12. The influence of anisotropy on the field
Appendix: Electromagnetic response of eccentred magnetic dipole in cylindrically-layered media