Synthetic Seismic Reflection Modelling of the CROP- 18A: An Image of the K-horizon in the Larderello Geothermal Field

Exploration strategies of geothermal reservoirs may significantly benefit from the development of synthetic seismic reflection modelling by analyzing prospective features on acquired seismic reflection data. The synthetic seismic reflection modelling represents an important instrument to better calibrate geologicalgeophysical interpretation and model reconstruction. To be elaborated a synthetic seismic reflection profile requires a conceptual geological model of the subsurface structure and a hypothesis on the physical properties. The K-horizon, probably drilled by the San Pompeo 2 well (Gianelli et al., 1997), has been widely observed in several seismic lines and it is characterized by a strong amplitude reflective signal (Batini et al., 1978, Accaino et al., 2005). In this study, geological and geophysical available data have been integrated to develop a 3D geological-geophysical model of the portion of the Larderello geothermal field drilled by the San Pompeo 2 well. A 2-D model has been then extrapolated from the 3D geological-geophysical model along the CROP- 18A seismic reflection line acquired within the CROP project (Scrocca et al., 2003).