Polymer injection as come of age in Chemical enhanced or improved Oil recovery (CEOR/CIOR) over the years. The technology as grew from several experimental studies to several field applications. Numerous Researches have been performed to study the recovery potential of Polymer flooding technique in different homogenous medium such as sand packs, beads pack and some consolidated media at different conditions. But in this research attempt is been made to study the performance and behaviour of a synthetic Polymer, Hengflo 63020, in deferent porous media at the same reservoir conditions in a four series core flood experiments involving two Robu cores of different pore geometry and Properties, a Berea sandstone Core and a Bentheimer sandstone core.

Result shows that at elevated temperature of 73°C, Hengflo 63020 has a potential to recover up to 32% additional Oil in Bentheimer Sandstone of 1300md, 12% additional Oil in Berea Sandstone of 158md, 28% in a special ROBU core of permeability of 3662md and 18% in another ROBU core of permeability of 2178md. The performance of Hengflo 63020 indicates a good recovery Potential in heterogeneous reservoir with permeability variation as of the four cores used in this research. Hengflo 63020 Polymer flooding as shown to be capable of reaching a displacement efficiency of 68.182% in a sandstone reservoir at a temperature of 163°F and this establishes the viability of a Polymer injection Oil recovery technique