Rabbel, Wolfgang, Jusri, Tomi, Köhn, Daniel, Motra, Hem Bahadur, Niederau, Jan, Schreiter, Lena, Thorwart, Martin and Wuttke, Frank (2017) Seismic Velocity Uncertainties and their Effect on Geothermal Predictions: A Case Study. Energy Procedia, 125 . pp. 283-290. DOI 10.1016/j.egypro.2017.08.178.

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Abstract

Geothermal exploration relies in large parts on subsurface models derived from seismic reflection profiling. Based on a case study of the Larderello area we discuss the influence of seismic velocity uncertainties in geothermal prospecting and highlight the role of unrecognized seismic anisotropy. For the field study we investigated the anisotropy of typical rock samples under simulated in-situ HP/HT conditions. It turns out that the target horizons may be found up to 300 m shallower and 200 m horizontally displaced compared to the isotropic case due to anisotropic bias. Correspondingly, the uncertainty of temperature extrapolation may increase from 10 to 20%.

Document Type:	Article
Keywords:	Geothermal prospectingseismic velocityseismic anisotropyuncertainty estimate
Research affiliation:	Kiel University > Kiel Marine Science OceanRep > The Future Ocean - Cluster of Excellence Kiel University
Refereed:	Yes
Open Access Journal?:	Yes
Publisher:	Elsevier
Projects:	Future Ocean
Date Deposited:	08 Jan 2018 12:04
Last Modified:	12 Apr 2019 14:28
URI:	https://oceanrep.geomar.de/id/eprint/41266

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