Abstract
To prepare the construction and operation of a deep geological disposal facility, the mechanical behaviour of the rock formations has to be well known. One of the studied parameters is the Young’s modulus. A workflow has been developed to estimate static Young’s moduli in claystone and limestone formations on seismic lines. First, the dynamic Young’s moduli have been obtained by elastic inversion of the seismic data after calibration on well data. Then static Young’s moduli have been estimated from dynamic Young’s moduli using core and logging data. Finally, the procedure has been extended to evaluate static from dynamic moduli on seismic lines. This procedure can be generalized to all the seismic lines of the 3D seismic cube. The spatial variability of the elastic moduli can now be studied at high resolution and on the entire area dedicated to build a repository for radioactive waste.
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References
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Yven, B., Mari, JL. (2019). Young’s Modulus: From Core and Logging to Seismic Lines. In: Sundararajan, N., Eshagh, M., Saibi, H., Meghraoui, M., Al-Garni, M., Giroux, B. (eds) On Significant Applications of Geophysical Methods. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01656-2_25
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DOI: https://doi.org/10.1007/978-3-030-01656-2_25
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