Emulsions synergistic-stabilized by a hydroxyl sulfobetaine surfactant and SiO₂ nanoparticles and their potential application for enhanced oil recovery.

ABSTRACT: The emulsions formed by conventional surfactants have poor stability in high temperature and high salinity reservoirs, which limits the fluidity control ability of emulsion flooding systems. Hydroxyl sulfobetaine surfactants have excellent emulsifying properties and can maintain good activity under high temperature and high salinity conditions. In this study, an emulsion synergistic-stabilized by hydroxyl sulfobetaine surfactant LHSB and SiO₂ nanoparticles was reported for the first time, and the feasibility of its enhanced oil recovery was investigated. The results show that the stability, temperature and salt resistance of the emulsion were significantly improved after adding nanoparticles, which positively affected the exploitation of harsh reservoirs. The synergistic-stabili

SUBMITTER: Ren Z 

PROVIDER: S-EPMC10450575 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature