This paper presents a case study that describe the precipitation behavior of asphaltene and petroleum reservoir fluid. It includes a CO2 flooding process in a synthetic reservoir using CMG/GEM, ECLIPSE, and UTCOMP simulators. Solid model is used in UTCOMP, CMG/GEM and ECLIPSE simulators for asphaltene precipitation prediction. WinProp (a PVT utility from CMG/GEM) is used to generate the data for all simulators.
Different cases are run to investigate the production rates resulted from different simulators (UTCOMP, CMG/GEM, and ECLIPSE) during the waterflooding period with CO2 (WAG), with and without considering the asphaltene option.