Anton Ziolkowski, Evert SlobCambridge University PressEdition: Illustrated, 3/7/2019EAN 9781107058620, ISBN10: 1107058627Hardcover, 332 pages, 25.1 x 21.3 x 2 cmLanguage: EnglishOriginally published in EnglishThis volume describes how controlled-source electromagnetic (CSEM) methods are used to determine the electrical conductivity and hydrocarbon content of the upper few kilometres of the Earth, on land and at sea. The authors show how the signal-to-noise ratio of the measured data may be maximised via suitable choice of acquisition and processing parameters and selection of subsequent data analysis procedures. Complete impulse responses for every electric and magnetic source and receiver configuration are derived, providing a guide to the expected response for real data. 1-D, 2-D and 3-D modelling and inversion procedures for recovery of Earth conductivity are presented, emphasising the importance of updating model parameters using complementary geophysical data and rock physics relations. Requiring no specialist prior knowledge of electromagnetic theory, and providing a step-by-step guide through the necessary mathematics, this book provides an accessible introduction for advanced students, researchers and industry practitioners in exploration geoscience and petroleum engineering.PrefaceNotation and conventions1. Introduction2. Sources, receivers, acquisition configurations and source time functions3. Fourier analysis and linear filters4. Electromagnetic fields in a horizontally layered VTI medium5. Numerical examples6. Source control7. Deep-water CSEM8. Land CSEM with a transient source signal9. Shallow-water CSEM with a transient source signal10. Forward and inverse modelling of CSEM data11. Recovery of resistivities from CSEM data12. Efficient CSEMAppendix A. The electric field in a VTI whole spaceAppendix B. The electromagnetic field in a VTI layered mediumAppendix C. Green's functions and their derivativesAppendix D. The final value theoremReferencesIndex.
