Adsorption of nonionic surfactants in sandstones

“…Adsorption of surfactants from aqueous solutions in porous media is very important in enhanced oil recovery (EOR) of oil reservoirs because surfactant loss due to adsorption on the reservoir rocks impairs the effectiveness of the chemical solution injected to reduce the oil-water interfacial tension (IFT) and renders the process economically unfeasible (Curbelo et al, 2007). Furthermore, the adsorption of surfactants by soils can result in much surfactant being unavailable for the micellar solubilisation of hydrophobic organic compounds (HOCs), thereby decreasing its efficiency for desorption.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of sodium dodecyl sulfate, Triton X100 and their mixtures to shale and sandstone: A comparative study

Muherei

Junin²,

Merdhah

2009

Journal of Petroleum Science and Engineering

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“…Studies performed by Curbelo et al (2007;2008) show that solutions of surfactants R200, SB, and OCS injected, individually, had recovery factors (Figure 3.a). However, for synergism to R200/SB mixture, recovery factor increased to 70.0% (Figure 3b).…”

Section: Oil Recoverymentioning

confidence: 99%

Synergism Study of Mixtures of Ionic and Nonionic Surfactants in Enhanced Oil Recovery Adsorption

Curbelo

Garnica

Dantas

et al. 2017

BJPG

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Adsorption of surfactants from aqueous solutions in porous media is fundamental in enhanced oil recovery (EOR) because surfactant loss reduces the effectiveness of the chemical solution injected, making the process economically unfeasible. This paper analyzes surfactants' synergistic effects in adsorption and enhanced oil recovery. This study used nonionic (nonylphenol 20 ethylene oxide -R200) and anionic surfactants (saponified coconut oil -OCS and base soap -SB) with the two mixtures studied (R200/OCS and R200/SB). The mixture R200/SB, due to its higher viscosity because of the presence of SB, saturated the ionic surfactant (SB) faster, reaching a higher oil recovery (70.0%). The addition of SB surfactant in the R200 solution led to an increase in oil recovery (70.0%) when compared to R200 alone (64.5%).

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Adsorption of nonionic surfactants in sandstones

Cited by 167 publications

References 15 publications

Experimental investigation of a natural surfactant adsorption on shale-sandstone reservoir rocks: Static and dynamic conditions

Experimental investigation of a natural surfactant adsorption on shale-sandstone reservoir rocks: Static and dynamic conditions

Adsorption of sodium dodecyl sulfate, Triton X100 and their mixtures to shale and sandstone: A comparative study

Synergism Study of Mixtures of Ionic and Nonionic Surfactants in Enhanced Oil Recovery Adsorption

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