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

Ahmadi, Mohammad Ali; Shadizadeh, Seyed Reza

doi:10.1016/j.fuel.2015.06.035

Cited by 151 publications

(82 citation statements)

References 58 publications

(174 reference statements)

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“…The adsorptive capacity was calculated from Eq. (Ahmadi and Shadizadeh, ):

Γ_{1} = \frac{V ((), c_{0} - c)}{m}

where Γ 1 is the static adsorption capacity (mg g −1 ); V is the solution volume (L); c 0 is the surfactant concentration before adsorption (mg L −1 ); c is the surfactant concentration after adsorption (mg L −1 ); and m is the quality of quartz sand (g).…”

Section: Methodsmentioning

confidence: 99%

Synthesis of an Alkyl Polyoxyethylene Ether Sulfonate Surfactant and Its Application in Surfactant Flooding

Tang

et al. 2018

J Surfact & Detergents

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Surfactant flooding as a potential enhanced oil‐recovery technology in a high‐temperature and high‐salinity oil reservoir after water flooding has attracted extensive attention. In this study, the synthesis of an alkyl alcohol polyoxyethylene ether sulfonate surfactant (C12EO7S) with dodecyl alcohol polyoxyethylene ether and sodium 2‐chloroethanesulfonate monohydrate, and its adaptability in surfactant flooding were investigated. The fundamental parameters of C12EO7S were obtained via surface tension measurement. And the ability to reduce oil–water interfacial tension (IFT), wettability alteration, emulsification, and adsorption was determined. The results illustrated that IFT could be reduced to 10−3 mN m−1 at high temperature and high salinity without additional additives, and C12EO7S exhibited benign wettability alternate ability, and emulsifying ability. Furthermore, the oil‐displacement experiments showed that C12EO7S solution could remarkably enhance oil recovery by 16.19% without adding any additives.

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“…The adsorptive capacity was calculated from Eq. (Ahmadi and Shadizadeh, ):

Γ_{1} = \frac{V ((), c_{0} - c)}{m}

Section: Methodsmentioning

confidence: 99%

Synthesis of an Alkyl Polyoxyethylene Ether Sulfonate Surfactant and Its Application in Surfactant Flooding

Tang

et al. 2018

J Surfact & Detergents

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“…The liquid phase was separated by centrifugation. The concentration of surfactant solution after the adsorption experiments was measured by methylene blue titration, and then the static adsorption capacity (Γ) can be calculated from the following formula:

Г = V (C_{0} - C_{1}) / W

where V is the volume of the surfactant solution, C 0 represents the concentration of the surfactant solution before adsorption experiments, C 1 stands for the concentration after adsorption experiments, and W is the mass of the reservoir sand. The value of Г is in units of mg/g.…”

Section: Methodsmentioning

confidence: 99%

Enhanced oil recovery from high‐salinity reservoirs by cationic gemini surfactants

Yuan

Liu

Gao

et al. 2017

J of Applied Polymer Sci

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In order to enhance oil recovery from high-salinity reservoirs, a series of cationic gemini surfactants with different hydrophobic tails were synthesized. The surfactants were characterized by elemental analysis, infrared spectroscopy, mass spectrometry, and 1 H-NMR. According to the requirements of surfactants used in enhanced oil recovery technology, physicochemical properties including surface tension, critical micelle concentration (CMC), contact angle, oil/water interfacial tension, and compatibility with formation water were fully studied. All cationic gemini surfactants have significant impact on the wettability of the oil-wet surface, and the contact angle decreased remarkably from 988 to 338 after adding the gemini surfactant BA-14. Under the condition of solution salinity of 65,430 mg/L, the cationic gemini surfactant BA-14 reduces the interfacial tension to 10 23 mN/m. Other related tests, including salt tolerance, adsorption, and flooding experiments, have been done. The concentration of 0.1% BA-14 remains transparent with 120 g/L salinity at 50 8C. The adsorption capacity of BA-14 is 6.3-11.5 mg/g. The gemini surfactant BA-14 can improve the oil displacement efficiency by 11.09%.

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“…The amount of surfactant adsorbed was determined by measuring different concentrations in the solution before and after contact with sandstone. The pH value of each solution was also determined 56) .…”

Section: Experimental Procedures (1) Surfactant-polymer Floodingmentioning

confidence: 99%

Evaluation of Clay and Fumed Silica Nanoparticles on Adsorption of Surfactant Polymer during Enhanced Oil Recovery

Cheraghian

2017

J. Jpn. Petrol. Inst.

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Static and dynamic adsorption have key role in chemical flooding process and they are important parameters in surfactant polymer degradation and decrease oil recovery. The effects of nano concentration on static adsorption of surfactant were investigated at variable condition polymer and surfactant concentration and nanoparticles are critical parameters influence the adsorption behavior at a flooding process. Surfactant polymer solutions and newly developed nanoparticles solutions were tested. The crude oil had a viscosity of 1320 mPa s at test conditions. In this paper, the role of nanoparticles in the adsorption of surfactant polymers onto solid surfaces of reservoir core is studied. The results which obtained by means of static adsorption tests, show that the adsorption is dominated by the clay and silica nanoparticles between the polymer molecules and the solid surface. Higher nanoparticles concentration leads to less adsorption, where the adsorption may decrease to 20 % of the adsorption level of surfactant polymer. The clay and Aerosil A300 nanoparticles in surfactant polymer solutions improved oil recovery by about the same amount. The clay, however, showed improved performance in comparison to Aerosil A300.

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

Cited by 151 publications

References 58 publications

Synthesis of an Alkyl Polyoxyethylene Ether Sulfonate Surfactant and Its Application in Surfactant Flooding

Synthesis of an Alkyl Polyoxyethylene Ether Sulfonate Surfactant and Its Application in Surfactant Flooding

Enhanced oil recovery from high‐salinity reservoirs by cationic gemini surfactants

Evaluation of Clay and Fumed Silica Nanoparticles on Adsorption of Surfactant Polymer during Enhanced Oil Recovery

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