Unlocking Trapped Oil in Salty Reservoirs: HMZPAM, a Novel Zwitterionic Polymeric Surfactant for Efficient EOR
70% oil trapped in saline reservoirs. HMZPAM, zwitterionic polymeric surfactant with hydrophobic branch, cuts IFT to 0.441 mN/m, makes rocks water-wet, retains/boosts viscosity in brines. 84% recovery in core floods vs. HPAM. Game-changer for efficient EOR in harsh fields.