Experimental investigation of adsorption of a new nonionic surfactant on carbonate minerals

Ahmadi, Mohammad Ali; Shadizadeh, Seyed Reza

doi:10.1016/j.fuel.2012.07.039

Cited by 154 publications

(88 citation statements)

References 45 publications

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“…It should be mentioned here that to determine the amount of adsorption loss of the addressed ionic surfactant onto the reservoir rock samples, a batch test was used. Due to this fact, the weight of the crushed rock samples and the volume of the aqueous solution with different surfactant concentrations should be consistent for all the adsorption experiments as illustrated in Ahmadi and Shadizadeh (2012, 2013a, c, 2015. Two more crucial points should be mentioned: First, the equilibrium time of adsorption was about 24 h, so adsorption experiments were conducted for 24 h. Second, the mass ratio of the surfactant solution to the crushed rock was 5:1.…”

Section: Adsorption Experimentsmentioning

confidence: 93%

“…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%

“…As noted previously, the conductivity of the aqueous solution was utilized to indicate the surfactant concentration before and after adsorption loss onto the rock surface. 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%

See 2 more Smart Citations

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: 93%

Section: Core and Crushed Core Samplesmentioning

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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“…Designing and optimizing suitable surfactant flood for effective cEOR has always been very challenging and forever evolving. It is one of the robust and high-performance cEOR methods, which has been widely studied in the past decades because of its ability to alter wettability of carbonate reservoirs from the oil/mixed-wet to the waterwet surfaces, lower interfacial tension (IFT) and produce the oil entrapped in these formations (Hill et al 1973;Yang and Wadleigh 2000;Webb et al 2005;Farajzadeh et al 2010;Barnes et al 2012;Ahmadi and Shadizadeh 2013a). The idea of adding surfactants to injected water for reducing oil/water IFT and/or alter wettability thereby increasing oil recovery from reservoirs dates back to the early 1900s (Uren and Fahmy 1927).…”

Section: Surfactant Flooding Processes For Chemical Eor In Carbonate mentioning

confidence: 99%

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

et al. 2017

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“…Shahri et al 6) used Amott cell to extract a natural surfactant from Zizyphus Spina-Christi and introduced the application of this surfactant in oil recovery. After that, Ahmadi and Shadizadeh 7), 8) investigated the adsorption behavior of this surfactant onto carbonate rocks at different conditions; this adsorption will cause further changes in rock wettability. Ahmadi et al 9) formulated a micro-fluid using micro-sized particles of Mulberry leaf and studied the effect of Mulberry leaf-derived surfactant on the IFT between oil and water at different surfactant concentration.…”

Section: Introductionmentioning

confidence: 99%

Effect of Natural Leaf-derived Surfactants on Wettability Alteration and Interfacial Tension Reduction in Water-oil System: EOR Application

Rahmati

Mashayekhi

Songolzadeh

et al. 2015

J. Jpn. Petrol. Inst.

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In this study, two types of plants based natural cationic surfactants, named Mulberry and Henna are introduced and the application of these natural surfactants in wettability alteration of reservoir rock and reducing the interfacial tension of water-oil system is investigated. For this purpose, two natural-based surfactants were extracted from the leaves of the trees of addressed plants and then the interfacial tension (IFT) values between oil and natural surfactant solution and also the contact angle values between natural surfactant solution and rock sample were measured. The results demonstrated that Mulberry extract was able to lower the interfacial tension between oil and distilled water from 43.9 to 4.01 mN/m, while Henna extract could reduce the IFT from 43.9 to 3.05 mN/m. These natural surfactants were also able to reduce the contact angle of rock/fluid system which shows the wettability is altering to water wet system and so it may increase recovery factor by reducing residual oil saturation and Henna extract could reduce the contact angle more than that of Mulberry leaf extract. According to these results in addition to the low price of generating natural surfactants, the feasibility of using these kinds of surfactants in future oil recovery processes is of major concern.

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Experimental investigation of adsorption of a new nonionic surfactant on carbonate minerals

Cited by 154 publications

References 45 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

Review of surfactant-assisted chemical enhanced oil recovery for carbonate reservoirs: challenges and future perspectives

Effect of Natural Leaf-derived Surfactants on Wettability Alteration and Interfacial Tension Reduction in Water-oil System: EOR Application

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