Controlled releases of asphaltene inhibitors by nanoemulsions

摘要: Abstract Asphaltene precipitation is usually responsible for many flow assurance problems such as wettability changes and pore clogging in reservoirs, fouling wellbore tubing production surface facilities. This study develops a novel approach by using nanoemulsions (NE) controlled delivery release of asphaltene inhibitors (AI) to minimize with reduced AI amount. LUMiSizer was utilised the effectiveness performance three cases on sedimentation: i) strong organic acids (dodecyl benzene sulfonic acid, DBSA), ii) (blank NEs), iii) loaded DBSA (DBSA NEs). The experiments suggested that optimum inhibitor concentration completely stabilizing were 4 vol% DBSA. amount can be significantly ∼20 times NEs, time greatly extended. A mechanistic understanding effect proposed based interfacial properties electron microscopic studies, which related hydrophilicity intermolecular interactions among all NE’s components molecules.