Experimental studies of ionic surfactant adsorption onto carbonate rocks

Salari, Zargham; Ahmadi, Mohammad Ali

doi:10.1080/15567036.2011.647245

Cited by 11 publications

(12 citation statements)

References 12 publications

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“…According to the procedure of adsorption experiments reported by Ahmadi and his colleagues (Ahmadi and Shadizadeh 2012, 2013c, 2015Zendehboudi et al 2013) and Salari et al (2011), the depletion solution or batch tests were conducted to indicate adsorption behavior of the ionic surfactant on the carbonate surface in the presence of silica nanoparticles. Two crucial points of the proposed adsorption experiments are the adsorption equilibrium time and the ratio of the solid and aqueous phases.…”

Section: Adsorption Experimentsmentioning

confidence: 99%

“…To evaluate adsorption of the ionic surfactant in the presence of different silica nanoparticles, two core samples were crushed using a jaw crusher and then passed through specific sieves (50-70 mesh size) for repeatability of the experiments and to double check our adsorption experiments (Salari et al 2011;Ahmadi and Shadizadeh 2012, 2013a, b, c, 2015Ahmadi et al 2014;Zendehboudi et al 2013). X-ray diffraction (XRD) was conducted to analyze the phase composition of the core samples, and the results are shown in Fig.…”

Section: Core and Crushed Core Samplesmentioning

confidence: 99%

“…It should be noted that a conductivity detector from Crison Company (EC-GLP 31 ? ) was used in experiments (Salari et al 2011; Specific gravity of C 6? 0.8325 , 2013c, 2015Zendehboudi et al 2013).…”

Section: Determination Of Critical Micelle Concentration (Cmc)mentioning

confidence: 99%

“…For more details about the procedure of conductivity measurement for adsorption experiments, the authors referred to Ahmadi and Shadizadeh (2012, 2013a, c, 2015. Finally, the magnitude of the surfactant loss onto the rock surface (in terms of mg surfactant/g of rock) was calculated from the following formulation (Salari et al 2011;Ahmadi and Shadizadeh 2012, 2013c, 2015Zendehboudi et al 2013):…”

Section: Adsorption Experimentsmentioning

confidence: 99%

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Performance improvement of ionic surfactant flooding in carbonate rock samples by use of nanoparticles

Ahmadi

Sheng

2016

Pet. Sci.

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Various surfactants have been used in upstream petroleum processes like chemical flooding. Ultimately, the performance of these surfactants depends on their ability to reduce the interfacial tension between oil and water. The surfactant concentration in the aqueous solution decreases owing to the loss of the surfactant on the rock surface in the injection process. The main objective of this paper is to inhibit the surfactant loss by means of adding nanoparticles. Sodium dodecyl sulfate and silica nanoparticles were used as ionic surfactant and nanoparticles in our experiments, respectively. AEROSIL Ò 816 and AEROSIL Ò 200 are hydrophobic and hydrophilic nanoparticles. To determine the adsorption loss of the surfactant onto rock samples, a conductivity approach was used. Real carbonate rock samples were used as the solid phase in adsorption experiments. It should be noted that the rock samples were water wet. This paper describes how equilibrium adsorption was investigated by examining adsorption behavior in a system of carbonate sample (solid phase) and surfactant solution (aqueous phase). The initial surfactant and nanoparticle concentrations were 500-5000 and 500-2000 ppm, respectively. The rate of surfactant losses was extremely dependent on the concentration of the surfactant in the system, and the adsorption of the surfactant decreased with an increase in the nanoparticle concentration. Also, the hydrophilic nanoparticles are more effective than the hydrophobic nanoparticles.

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Section: Adsorption Experimentsmentioning

confidence: 99%

Section: Core and Crushed Core Samplesmentioning

confidence: 99%

Section: Determination Of Critical Micelle Concentration (Cmc)mentioning

confidence: 99%

Section: Adsorption Experimentsmentioning

confidence: 99%

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Performance improvement of ionic surfactant flooding in carbonate rock samples by use of nanoparticles

Ahmadi

Sheng

2016

Pet. Sci.

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“…In this test, the concentration which has been chosen for core flooding operation should be suited for dissolution [16]. The CMC concentration from conductivity test will be tested with different proportions of brine and alkali for complete de emulsification.…”

Section: Emulsion Testsmentioning

confidence: 99%

Improving Recovery Through Surfactant Desorption on An Oil Wet Limestone Reservoir

Mja¹

2017

J Pet Environ Biotechnol

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Observing the Effects of Temperature and Surface Roughness on Cetyltrimethylammonium Bromide Adsorption Using a Quartz‐Crystal Microbalance with Dissipation Monitoring

Hamon

Striolo

Grady

2019

J Surfact & Detergents

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The effects of temperature and surface roughness on the mass and viscoelasticity of an adsorbed surfactant layer were monitored using a quartz crystal microbalance with dissipation monitoring (QCM‐D). Adsorption isotherms at 30, 40, 50, and 60 °C and at two different roughnesses on gold were measured for cetyltrimethylammonium bromide (CTAB). All isotherms displayed an increase in mass and dissipation as surfactant concentration was increased to its critical micelle concentration (CMC). Above the CMC, adsorption reached a peak followed by a slight decrease to a plateau at the equilibrium adsorption value. As the temperature was increased, the adsorbed mass above the CMC decreased. The adsorbed mass decreased further by increasing substrate roughness, while the dissipation remained unchanged within experimental uncertainty. Dynamic adsorption experiments were also conducted at various temperatures for select concentrations above and below the CMC, providing evidence for the importance of different adsorption mechanisms as a function of both surfactant concentration and surface roughness.

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Experimental studies of ionic surfactant adsorption onto carbonate rocks

Cited by 11 publications

References 12 publications

Performance improvement of ionic surfactant flooding in carbonate rock samples by use of nanoparticles

Performance improvement of ionic surfactant flooding in carbonate rock samples by use of nanoparticles

Improving Recovery Through Surfactant Desorption on An Oil Wet Limestone Reservoir

Observing the Effects of Temperature and Surface Roughness on Cetyltrimethylammonium Bromide Adsorption Using a Quartz‐Crystal Microbalance with Dissipation Monitoring

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