Comparison of different experimental data inputs in history matching pro- cedure for relative permeability and capillary pressure determination

Resumo

In order to determine relative permeability (Kr) and capillary pressure (Pc) curves, several laboratory tests
are performed, for instance, Core Flooding (CF) experiments using one or two fluids, from which experimental
data such as pressure drop (DP), net produced volume (NP), and Computed Tomography (CT) scans of saturation
profiles (SP) may be derived, and input into a history matching software. History matching is a technique used to
approximate unknown numerical properties of a model based on the knowledge of experimental data. It is usually
performed by solving the inverse problem upon the physical modeling of a system. The SCAS module of the
software RFDAP, developed by ESSS, was used to compare the curves obtained using several combinations of
experimental data inputs: (1) Only DP, (2) Only NP, (3) DP and NP, (4) DP and SP, and (5) DP, NP and SP. The
purpose is to compare the quality of the solutions, in relation to a reference. The synthetic data used for the studies
is based on an CF experiment performed by LRAP (UFRJ).