The foam reinforced with Janus amphiphilic graphene oxide to control steam channeling in heavy oil reservoir

Chen, Lifeng; Zeng, Huiyong; Sun, Yubao; Li, Gang; Zhang, Zhaonian; Qi, Jun; Tang, Zhengwei; Xu, Penghai

doi:10.1016/j.colsurfa.2023.132627

Cited by 4 publications

(2 citation statements)

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“…Researchers had devoted considerable effort to investigating the interfacial property of JGO. Luo et al and Jia et al found that JGO could construct an interfacial film and climbing film under hydrodynamic force, change the wettability of the rock surface, and promote the separation of crude oil from the rock surface. , Chen et al synthesized hexadecylamine-coupled amphiphilic GO (H-GO2), which markedly increased the thickness of the gas–liquid interface film to improve foam stability and efficaciously control steam channeling in heavy oil reservoirs . Lv et al employed JGO to inhibit the hydration expansion of shale and observed that the hydrophilic side of JGO spontaneously adsorbed onto the clay surface, and the formed hydrophobic barrier by outward hydrophobic alkyl chains evidently impeded the interaction between clay and water .…”

Section: Introductionmentioning

confidence: 99%

“…30,31 Chen et al synthesized hexadecylamine-coupled amphiphilic GO (H-GO2), which markedly increased the thickness of the gas−liquid interface film to improve foam stability and efficaciously control steam channeling in heavy oil reservoirs. 32 Lv et al employed JGO to inhibit the hydration expansion of shale and observed that the hydrophilic side of JGO spontaneously adsorbed onto the clay surface, and the formed hydrophobic barrier by outward hydrophobic alkyl chains evidently impeded the interaction between clay and water. 33 The aforementioned studies provide compelling evidence of the remarkable interfacial activity of JGO, facilitating the facile formation of the adsorption film at the interface.…”

Section: ■ Introductionmentioning

confidence: 99%

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Amphiphilic Janus Graphene Oxide Acts as a Corrosion Inhibitor to Mitigate the Corrosion Caused by a 1 M HCl Solution on Mild Steel

Wang,

Shen,

Wang

et al. 2024

Langmuir

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Great aqueous dispersibility, a large specific surface area, and high impermeability make graphene oxide (GO) the ideal candidate for a high-performance corrosion inhibitor. Numerous symmetrical modification methods have been reported to enhance the adsorption of GO on metal surfaces in various corrosive media. This work aims to investigate the enhancement and mechanism of unilateral hydrophobic modification on the corrosion inhibition performance of GO. In this study, amphiphilic Janus GO (JGO) was prepared by grafting hydrophobic alkyl chains on one side of GO, and its anticorrosion performance was evaluated via weight loss experiments and electrochemical tests. The results revealed that the corrosion inhibition efficiency for Q235 mild steel (MS) in a 1 M HCl aqueous solution of 25 ppm JGO (81.08%) was much higher than that of GO at the same concentration (22.12%). Furthermore, the Langmuir adsorption isotherm and computational study demonstrated that the synergistic effect of physical adsorption and chemical adsorption promoted the hydrophilic side of JGO close to the surface of the metal, and the dense protective layer was formed by the hydrophobic chains toward the corrosive medium, which effectively hindered the corrosion of MS by the acidic liquid. This study emphasizes the significant role of asymmetrically modified hydrophobic alkyl chains in improving the corrosion prevention performance of GO and provides a perspective for the structural design of GO-based corrosion inhibitors.

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