Abstract
The need for effective enhanced oil recovery (EOR) methods in terms of economics and technical feasibility are growing rapidly along with the steeply growing demand for crude oil in the energy sector. Such demands driving researchers to innovate novel EOR solutions and also to explore ways to enhance the effectiveness of conventional EOR methods. This chapter summarises advancement in one such hybrid EOR method developed by combining novel low salinity water flooding with conventional surfactant flooding. The synergistic benefits of low salinity water and different low salinity surfactant formulations in terms of improving reservoir properties and oil recovery efficiency are summarized. This chapter also aims to provide a very detailed discussion on the complex pore level mechanism of oil recovery through the hybrid low salinity surfactant flooding process.
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