Υ7203 - APPLIED GEOPHYSICS

Course Content

Geophysics is a science that utilizes the laws of physics in order to study the Earth’s interior. Applied Geophysics, is limited to the investigation of the first kilometers for the identification of raw materials (e.g. hydrocarbon, minerals) and for solving several problems, such as geotechnical, hydrogeological, geoenvironmental etc. The measured geophysical fields on the Earth’s surface, are affected by the geophysical properties of deeper structures, which cannot be revealed applying the classic surface geological methods of investigation.

Introduction, basic principles of geophysical prospecting; Seismic methods. Theory of seismic refraction, reflection, seismic tomography and surface seismic waves. Measurements, processing, evaluation and interpretation. Applications and examples on geoenviromental and geotechnical problems, oil investigation and geodynamics; Geo-electrical methods. Principles, theory. Vertical and lateral distribution of the electrical resistivity, geoelectrical tomography. Measurements, processing, evaluation and interpretation. Applications and examples on geoenviromental and geotechnical problems etc.; Geo-electromagnetic methods. Propagation and attenuation of electromagnetic fields. EM methods of controlled sources, methods of frequency domain (VLF, HLEM), time-domain (TDEM), Geo-Radar. Measurements, processing, evaluation and interpretation. Applications and examples; Well-logging. Methodologies, acquisition techniques, processing, evaluation and interpretation. Applications and examples.
Nuclear magnetic resonance method. Principles, theory. Instruments, arrays, data acquisition and processing. Applications and examples.

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