A New Family of Anionic Surfactants for Enhanced-Oil-Recovery Applications

Gao, Bo; Sharma, Mukul M.

doi:10.2118/159700-pa

Cited by 50 publications

(22 citation statements)

References 52 publications

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“…For instance, from diphenyl ether and olefin, benzene sulfonate Gemini surfactants are prepared as the components of a mixture product [67]. For instance, from diphenyl ether and olefin, benzene sulfonate Gemini surfactants are prepared as the components of a mixture product [67].…”

Section: Anionic Gemini Surfactantsmentioning

confidence: 99%

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Enhanced oil recovery

2015

Petroleum Engineer's Guide to Oil Field Chemicals and Fluids

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Section: Anionic Gemini Surfactantsmentioning

confidence: 99%

“…Therefore, there is a potential of using these surfactants at low concentrations and under harsh reservoir conditions [67]. The Gemini surfactants also showed lower maximal adsorption densities than the conventional single-chain surfactants.…”

Section: Anionic Gemini Surfactantsmentioning

confidence: 99%

Enhanced oil recovery

2015

Petroleum Engineer's Guide to Oil Field Chemicals and Fluids

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“…Surfactant is studied for improving water flooding in fractured reservoirs since it could change matrix wettability and/ or reduce water/oil interfacial tension (IFT) to enhance capillary imbibition and/or reduce residual oil saturation. The wettability alteration and IFT reduction are two main mechanisms of surfactant enhanced oil recovery (EOR) which depends on the oil/brine/rock system, the surfactant type and concentration, divalent ions, salinity, temperature and others (Standnes and Austad 2000;Standnes et al 2002;Babadagli 2002Babadagli , 2003Seethepalli et al 2004;Xu et al 2005;Alvarez and Schechter 2016;Golabi et al 2012;Alvarez et al 2014;Gao and Sharma 2013;Karnanda et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Simulation study of surfactant injection in a fractured core

Cheng

Kleppe

Torsæter

2019

J Petrol Explor Prod Technol

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Surfactant flooding could be used to improve water flooding in fractured reservoirs due to the main mechanisms of wettability alteration and interfacial tension reduction. However, the surfactant flooding in fractured reservoir is not well studied. And there still exist some disputes like surfactant injection rate, surfactant application timing and surfactant injection size. The objective of this work is to study the effects of those parameters on surfactant oil recovery. A spontaneous imbibition model is established based on spontaneous imbibition experiments to verify the properties of rock, brine, oil and surfactant that would be used in the study of surfactant flooding. The spontaneous imbibition model is cut into two parts to create a vertical fracture in the middle. Then the fractured matrix is used as the model in the study of surfactant flooding. The simulation results show that considering the time cost and surfactant consumption, the surfactant injection rate of 0.027 cm 3 /h (i.e., 0.001 PV/h) is a proper injection rate for the base case, since the oil recovery rate is the same for the injection rate that is higher than 0.027 cm 3 /h, and the oil recovery is up to 90% ultimate oil recovery after injecting 2 PV surfactant solution. The analysis of surfactant diffusion and fracture porosity effects on surfactant oil recovery indicates that the surfactant diffusion is a key parameter to facilitate the movement of surfactant into the matrix. The injection rate has larger effect in the system with smaller fracture porosity. When the injection rate is higher than 0.53 cm 3 /h, the ultimate oil recovery is larger in the system with fracture porosity of 0.1% than the system with fracture porosity of 0.5%. In general, the earlier injection of surfactant results in a better result. For the base case, the surfactant flooding time and the required surfactant volume are smaller for the earlier application of surfactant. If the surfactant diffusion is negligible, the early injection of surfactant could increase the ultimate oil recovery. The maximum oil recovery is obtained after injecting 1.3 PV surfactant solution with the concentration of 0.01 g/cm 3. But for the lower surfactant concentration, it needs more surfactant solution. Furthermore, the surfactant efficiency is reduced because less surfactant is imbibed into the matrix. So under the condition of injection safety, higher surfactant concentration should be applied. This work not only studied the injection rate effect on oil recovery, it also analysed the effect of surfactant diffusion and fracture properties on the choice of injection rate. In addition, this work explained why the surfactant should be applied before water flooding and whether surfactant application is feasible after completed water flooding. At the end, the surfactant slug size effect on oil recovery and how it is affected by the surfactant concentration are discussed.

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“…Unlike traditional surfactants, gemini surfactant has novel structure and excellent performance: using the spacer; it can connect two hydrophilic groups by chemical bonds to form a structure with double hydrophilic groups and double hydrophobic chains. This structure owns more advantages, such as higher surface tension, higher micelle forming ability, and better water solubility [6][7][8]. At present, gemini surfactant has been widely used in metal corrosion inhibition, transportation, medicine, and other industries, which plays a huge role in improving production process, enhancing product quality, reducing the cost, and increasing the added value [8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Novel Gemini Cationic Surfactant and Its Inhibition Behaviour and Mechanism Study on 2024 Al-Cu-Mg Alloy in Acid Solution

Chen

Qingmao

et al. 2018

International Journal of Corrosion

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Isopropylamine was taken as a raw material to synthesize a new multi-alkyl multiple quaternary-ammonium salts gemini surfactant bis[2-hydroxy-3-(dodecyldimethylammonio)propyl]-isopropylamine dichloride. The structure of the synthetic product was characterized by 1H NMR and FTIR. The surface activity was investigated; the inhibition efficiencies and inhibition mechanism of the synthetic product were studied by weight loss method, electrochemical method, microscopic morphology observation, and adsorption model calculation. The results indicate that cmc of synthetic product was 9.204 × 10-4 mol/L; when the concentrations were lower than cmc, the inhibition efficiencies rose substantially, which was up to 89.3% with the concentration of 9.204 × 10-4 mol/L; when they were higher than cmc, inhibition efficiencies were basically unchanged; polarization tests showed that the synthesis product could restrain both anodic and cathodic reactions; when the concentrations were lower than cmc, the adsorption of the synthetic product conformed to the Langmuir model, which formed monolayer on the 2024 Al-Cu-Mg alloy surface; when they were higher than cmc, it formed bilayer, so the adsorption of the synthetic product did not conform to the Langmuir model anymore.

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A New Family of Anionic Surfactants for Enhanced-Oil-Recovery Applications

Cited by 50 publications

References 52 publications

Enhanced oil recovery

Enhanced oil recovery

Simulation study of surfactant injection in a fractured core

Synthesis of a Novel Gemini Cationic Surfactant and Its Inhibition Behaviour and Mechanism Study on 2024 Al-Cu-Mg Alloy in Acid Solution

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