NUMERICAL MODELING OF CO2 SEQUESTRATION WITH MUFTE-UG

In this presentation, we outline the recently developed modeling capabilities of our numerical simulator MUFTE-UG in the eld of simulating the non-isothermal multi-phase multi-component processes occuring during the sequestration of CO2 in deep geological formations. The relation of this work to other currently ongoing research projects in which the authors are involved will be discussed. A benchmark example related to our current research activities in this eld is then discussed in more detail. We use MUFTE-UG as a development platform for our new conceptual models and their mathematical-numerical implementation. Based on existing moduls, MUFTE-UG has been extended by a non-isothermal two-phase two-component model concept for the simulation of CO2 sequestration in geological formations. It takes into account the two phases CO2 and brine and the components CO2 and water which can dissolve in the dieren t phases. Presently, we assume chemical equilibrium and neglect all kinds of mineralization processes in the code. The presented benchmark example is oriented at certain key questions that have to be answered in the run-up to any large-scale implementation of the CO2 sequestration technology. In this case, we focus particularly on leaky well scenarios.