Using starch graft copolymer gel to assist the CO huff-n-puff process for enhanced oil recovery in a water channeling reservoir.

The CO huff-n-puff process is an effective method to enhance oil recovery (EOR) and reduce CO emissions. However, its utilization is limited in a channeling reservoir due to early water and gas breakthrough. A novel starch graft copolymer (SGC) gel is proposed for treating the channels and assisting with the CO huff-n-puff process.

A New Method for Calculating the Relative Permeability Curve of Polymer Flooding Based on the Viscosity Variation Law of Polymer Transporting in Porous Media.

Relative permeability of polymer flooding plays a very important role in oil field development. This paper aimed to measure and calculate the relative permeability curves of polymer flooding more accurately. First, viscosity variation law of polymer in porous media was studied.