2023
DOI: 10.30574/gscarr.2023.14.3.0076
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Design of salinity tolerant in alkaline surfactant systems for high salinity reservoirs

Abstract: Chemical oil recovery from offshore reservoirs which are usually characterised by harsh conditions such as high salinities have remained a source of concern. This study assesses chemical compatibilities of alkalis –surfactant systems under high salinity and divalent ions (Ca2+ and Mg2+). It analysed the synergy between alkali-surfactant slugs and crude oil, leading to the design of an optimal low-cost alkaline- surfactant flooding. Three alkali systems: sodium hydroxide, sodium metaborate and ethylene-diamine-… Show more

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