Toward mechanistic understanding of wettability alteration in carbonate rocks in the presence of nanoparticles, gelatin biopolymer, and core-shell nanocomposite of Fe₃O₄@gelatin.

ABSTRACT: Because a significant portion of oil remains in carbonate reservoirs, efficient techniques are essential to increase oil recovery from carbonate reservoirs. Wettability alteration is crucial for enhanced oil recovery (EOR) from oil-wet reservoirs. This study investigates the impact of different substances on the wettability of dolomite and calcite rocks. The substances include silicon dioxide (SiO₂) and iron oxide (Fe₃O₄) nanofluids, gelatin biopolymer, surfactants (sodium dodecyl sulfate (SDS)), Fe₃O₄/SDS, seawater, and salt solutions (sodium chloride (NaCl) and calcium chloride (CaCl₂)). Initially, water-wet rocks were exposed to crude oil for 22 days, resulting in significant contact angle changes. Dolomite and calcite co

SUBMITTER: Ebrahimi M 

PROVIDER: S-EPMC11685464 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature