1 23 Computational Geosciences Modeling, Simulation and Data Analysis ISSN 1420-0597 Comput Geosci DOI 10.1007/s10596-016-9607-y A model for CO 2 storage and seismic monitoring combining multiphase fluid flow and wave propagation simulators. The Sleipner-field case Gabriela B. Savioli, Juan E. Santos, José M. Carcione & Davide Gei