135 QUAL I TÉ GÉOPHYSIQUEAPPLIQUÉE Conclusion 8 J.-L. Mari, C. Vergniault This book provides a state of the art overview of borehole seismic methods and acoustic logging methods, for application in geotechnology and civil engineering fields, and also presents examples of data acquisition and analysis from the oil sector that are transposable if required with the necessary realism to near surface studies (in the fields of geotechnology, hydrogeology and seismic hazards). Indeed, Chapter 1 details the methodology of acquisition and analysis for routine measurements in geotechnology to establish shear velocity (Vs) logs. These measurements can be downhole, uphole and crosshole. The added value compared to the ASTM standards is to provide recommendations for the acquisition methodology (calibration procedures for the geophysical measurement chain, tools for trajectory or inclination measurements, and impact of downhole tube waves) and for processing (carrying out a two phase analysis to avoid artifacts related to real paths or refracted waves) and also for combining useful methods (possibility of controlling cementation, possibility of using two boreholes in crosshole analysis, provided that This chapter of Well seismic surveying and acoustic logging is published under Open Source Creative Commons License CC-BY-NC-ND allowing non-commercial use, distribution, reproduction of the text, via any medium, provided the source is cited. © EDP Sciences, 2018 DOI: 10.1051/978-2-7598-2263-8.c008
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