Surfactant-Nanoparticle Formulations for Enhanced Oil Recovery in Calcite-Rich Rocks.

ABSTRACT: Aqueous surfactant-nanoparticle mixtures have received great attention recently for promoting a more sustainable and efficient enhanced oil recovery (EOR) process. However, colloidal stability under reservoir conditions is considered a great challenge. In addition, the way synergy operates in EOR is not clearly understood. This study aims to formulate a cost-effective surfactant-nanoparticle mixture in a formation brine for efficient EOR in calcite-rich oil reservoirs. For this, bare silica nanoparticles were covalently grafted using an epoxysilane and blended with two commercial surfactants, namely a zwitterionic alkyl hydroxysultaine (AHS) and a binary zwitterionic-nonionic (ZN) surfactant, for both additional steric stabilization and EOR. The effects of additives alone or their mixtures

SUBMITTER: Rezvani H 

PROVIDER: S-EPMC11603775 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature