Synergistic anionic/zwitterionic mixed surfactant system with high emulsification efficiency for enhanced oil recovery in low permeability reservoirs. - Hai-Rong Wu; Rong Tan; Shi-Ping Hong; Qiong Zhou; Bang-Yu Liu; Jia-Wei Chang; Tian-Fang Luan; Ning Kang; Ji-Rui Hou (Petroleum Science (KeAi Communications Co.), 2024)