Comparative studies on enhanced oil recovery by alkali–surfactant and polymer flooding

Samanta, Abhijit; Bera, Achinta; Ojha, Keka; Mandal, Ajay

doi:10.1007/s13202-012-0021-2

Cited by 104 publications

(41 citation statements)

References 43 publications

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“…Critical micelle concentration can be determined from plot of interfacial tension (IFT) and surfactant concentration [3]. CMC values are important in all surfactant applications realted to the petroleum industry.…”

Section: B Recommendationmentioning

confidence: 99%

“…One of chemical flooding methods in the present study has been carried out on surfactant flooding. The chemicals with different compositions and combinations were used to recover the oil after conventional water flooding [3]. By applying primary and secondary oil recovery such as artificial lift and waterflooding, the average oil recovery still in between 5-30% [4].…”

Section: Introductionmentioning

confidence: 99%

“…AOS (Alpha Olefin Sulfonate) surfactants are one of the anionic surfactants which are most widely used in EOR processes because they show relatively low adsorption on sandstone rocks whose surface charge is negative [3]. Moreover, AOS surfactants provide outstanding detergency, high compatibility with hard water, and good wetting and foaming properties with CO 2 even when the porous medium is partially saturated with oil.…”

Section: Introductionmentioning

confidence: 99%

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Laboratory study of salinity and surfactant concentration effects on oil recovery

et al. 2017

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Abstract. This paper perfoms a discussion of the result from two laboratory tests of surfactant injection. The first test is focused on the influence of salinity that varies between 5000 ppm-9000 ppm with a concentration of 1% surfactant to the value of density, viscosity, interfacial tension, and Recovery Factor. The second test is performing the influence of surfactant concentration that varies between 0.1% -1% with a value of 5000 ppm salinity to the value of residual oil saturation, density, viscosity, and interfacial tension. The result of the first test shows that along with the increase of salinity levels, the increase in viscosity and density will occured as well. However, variations in salinity does not affect to the value of interfacial tension. Meanwhile, on Recovery Factor testing, the Recovery Factor optimal value of 61.53% was obtained when the salinity levels 6,000 ppm. The result of the second test showed that the addition of surfactant concentration lead to a decrease in the residual oil saturation and interfacial tension, but it may cause an increase in density and viscosity.

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Section: B Recommendationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laboratory study of salinity and surfactant concentration effects on oil recovery

et al. 2017

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“…Dynamic equilibrium between surfactant-saturated polymer and the regular aqueous micelles coexist just above the polymer saturation point (PSP). With further increase in surfactant concentration, surface tension remains constant and normal surfactant micelles start to form 62) . A comparative picture of the flooding performances by SP flooding is shown in Fig.…”

Section: Viscosity Experimentsmentioning

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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“…Under the same displacement efficiency as that of surfactant/polymer flooding, the ASP and SAP flooding reduce the concentration of surfactant by more than ten times, as well as the capital cost of the surfactant (Samanta et al, 2012). Two pilot tests of ASP and SAP flooding have been successful in China.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of optimum surfactant concentration needed for Niger delta oil recovery in Nigeria

Mamudu

Taiwo

Olalekan

2016

IJPE

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This paper presents laboratory analysis of optimum surfactant concentration needed for Niger delta oil recovery in Nigeria. Eight experiments were carried out on a crude sample from the field with different surfactant concentrations to water (0.1%, 0.3%, 0.5%, 0.7%, 0.9%, 1.1%, 1.3%, 1.5% surfactant) using glass beads to simulate the actual field process. Brine saturation, oil saturation, water flooding, surfactant flooding and polymer flooding were done for each of the eight experiments performed and the resulting recoveries were analysed and compared. Then, the optimum surfactant concentration was identified. The results show that 0.9% surfactant concentration is the optimum concentration needed for flooding in this field. Any concentration more than or less than 0.9% would yield less than the optimum recovery. It would be uneconomical to maintain a surfactant concentration higher than 0.9%. Recovery does not necessarily increase with increasing surfactant concentration in the mobilising slug. The field operators in this field are hereby advised to consider 0.9% surfactant concentration.

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Comparative studies on enhanced oil recovery by alkali–surfactant and polymer flooding

Cited by 104 publications

References 43 publications

Laboratory study of salinity and surfactant concentration effects on oil recovery

Laboratory study of salinity and surfactant concentration effects on oil recovery

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

Evaluation of optimum surfactant concentration needed for Niger delta oil recovery in Nigeria

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