Alkyl Polyglycoside-Sorbitan Ester Formulations for Improved Oil Recovery

نویسندگان

  • Y. Wu
  • S. Iglauer
  • P. Shuler
  • Y. Tang
چکیده

We measured interfacial tensions (IFT) of aqueous alkyl polyglucoside (APG) systems formulated with sorbitan ester-type cosurfactants against n-octane. The study focused on low to ultralow IFT systems which are relevant for enhanced oil recovery (EOR). In addition, we measured equilibrium adsorption concentrations of these surfactants and cosurfactants onto kaolinite clay, commonly found in oil reservoirs. We present one surfactant EOR laboratory flood experiment with one selected APGsorbitan ester formulation with which we recovered 94% of initial oil in place (IOIP).

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تاریخ انتشار 2010