The objective of this work is to improve the effectiveness of CO2 flooding in heterogeneous reservoirs. Our intent is to investigate new concepts that can be applied by field operators within the next two to five years. Activities will consist of experimental research in three closely related areas: 1) further exploration of the applicability of selective mobility reduction (SMR) in the use of foam flooding, 2) possible higher economic viability of floods at slightly reduced CO:! injection pressures, and 3) taking advantage of gravitational forces during low 1FT, CO:! flooding in tight, vertically fractured reservoirs.