An attractive alternative to mitigate the adverse effects of conventional water-based fluids on
the efficiency of hydraulic fracturing is to inject foam-based fracking fluids into reservoirs …

The influence of double-headed gemini was examined in the present study by studying the
amino acid methionine mixed with ninhydrin in CH3COOH-CH3COONa buffer solvent. The …

The effect of solutions of double-chained quaternary ammonium gemini surfactants (16-s-16,
s= 4–6) was characterized on the rate constant of the ninhydrin (nin) and lysine (Lys) …

Zwitterionic Gemini surfactants have the Gemini molecular structure in which there are both
multiple lipophilic groups and multiple hydrophilic groups. However, their hydrophilic groups …

In order to improve the recovery of crude oil and realize rapid demulsification of produced
fluid, a pH-responsive zwitterionic/anionic surfactant system was proposed. The pH …

A series of novel, nonionic gemini surfactants (GSs) with varying spacer lengths were
synthesized from sunflower (Helianthus) oil for application in enhanced oil recovery (EOR) …

Surfactant flooding has received considerable attention as a proven chemically enhanced
oil recovery method. Traditional surfactants are mainly focused on water-oil interfacial …

The surfactant solubility in oilfield water and stability under high-salinity/high-temperature
reservoirs faces great challenges. The industrially applied surfactants including petroleum …

Hypothesis The behaviour of surfactants in solution and at interfaces is governed by a
combination of steric and electrostatic effects experienced by surfactant molecules as they …

Betaines and anionic-nonionic surfactants are suitable for applying in enhanced oil recovery
(EOR) in the high-temperature and high-salinity reservoir conditions. We have used the …