Interfacial tension behavior of double long-chain 1,3,5-triazine surfactants for enhanced oil recovery

Qiao, Wenxiao; Li, Jing; Zhu, Yongfa; Cai, Haibing

doi:10.1016/j.fuel.2012.01.014

Cited by 49 publications

(27 citation statements)

References 24 publications

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“…The same trend has been observed in the literature reporting on surfactants instead of ILs. 21,33 In the current study, interfacial tension between crude oil and water is observed to be 36.26 ± 0.01 mN/m at 288.15 K. The obtained results exposed very interesting behavior for the 1,3-dialkyl imidazolium family of ILs. On comparing the IFT of ILs with eightc a r b o n , e .…”

Section: Resultsmentioning

confidence: 99%

Use of Aromatic Ionic Liquids in the Reduction of Surface Phenomena of Crude Oil–Water System and their Synergism with Brine

Sakthivel

Velusamy

Gardas

et al. 2015

Ind. Eng. Chem. Res.

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Enhanced oil recovery is governed primarily by the role of interfacial tension between crude oil and water. Interfacial tension (IFT) of the crude oil−water system is one of the vital factors in the analysis of the capillary forces affecting trapped oil within the reservoir rocks. High salinity and temperature of the reservoirs tend to make researchers search for new surfactants to lower the interfacial tension in crude oil−water systems. The current study hopes to create a move toward solving the above problem through the use of aromatic ionic liquids (ILs) based on imidazolium as the cation and various anions such as [HSO 4 ] − , and [PF 6 ] − in different concentrations. This work involves the study of the effect of concentration, temperature, time, and brine on the fate of surface tension (SFT) of water and interfacial tension of crude oil− water systems. The present study also addresses the trend in the electrical conductivity of ILs in water along with the effect of temperature and concentration of ILs. The study reveals that these ILs are effective in reducing the SFT and IFT of water and crude oil−water systems at high salinity and temperature conditions. In the IFT measurements, a linear decrement with increase in temperature is observed for crude oil−water in the presence of ILs. The interfacial tension of the various imidazolium-based ionic liquids with the crude oil−water system has been measured as a function of temperature by means of the Wilhelmy plate method. The influence of the nature of cation and anion of ionic liquids and of the chain length on the cationic head of the ILs on interfacial tension is also discussed in detail. At increased salinity conditions, unlike classical surfactants, these ILs are found to be more successful. Enhanced efficiency of the drop in IFT using NaCl and IL mixture has been confirmed by measuring the IFT between crude oil and the aqueous solution of IL. The synergism of salt and IL mixture on the reduction of IFT has been observed.

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Section: Resultsmentioning

confidence: 99%

Use of Aromatic Ionic Liquids in the Reduction of Surface Phenomena of Crude Oil–Water System and their Synergism with Brine

Sakthivel

Velusamy

Gardas

et al. 2015

Ind. Eng. Chem. Res.

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“…Polymer flooding in EOR can be used as the following basic principles of points: the polymer increases the viscosity of the flooding water, reduces water mobility, and thus greatly reduces oil flow ratio in order to reduce water flooding fingering, improve horizontal and microscopic pore structure reservoir heterogeneity condition, relieve channeling flow around other phenomena, and increase flooding swept volume of water (Qiao et al, 2012). Improving the flooding water distribution ratio between the vertical reservoir, adjusting water injection profile, and enhancing positive rhythm lowpermeability layer and the upper parts of the sedimentary layer of water absorption capacity thus slow the water along the high permeability layer inroads phenomenon and improve flooding swept volume of water (Feng et al, 2013;Mohammad et al, 2013;Wang and Miller, 2013).…”

Section: Microemulsion Floodingmentioning

confidence: 99%

Utilization of Surfactant Flooding Processes for Enhanced Oil Recovery (EOR)

Demirbas

Alsulami

Hassanein

2015

Petroleum Science and Technology

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Surfactant flooding is a well-known enhanced oil recovery (EOR) technique that has been used worldwide for decades. The surfactant can meaningful lower interfacial tension and change the wetting properties. Surfactant related recovery processes are of increasing interest and importance because of high oil prices and the urge to meet energy demand. The water flooding methods include chemical flooding and low-salinity water (LSW) flooding. Chemical flooding methods have been developed to recover residual oil trapped after conventional oil recovery is getting important recovery. The LSW flooding includes injecting brine with a lower content of salt or ionic strength. Water flooding improves oil recovery by displacing oil, and injection water is usually taken from the nearest available source. The injected alkali and surfactant, so that the interfacial tension between oil and water is lowered and thus residual oil can move. There is a relationship among chemical EOR efficiency and fluid viscosity, relative permeability, interfacial tension, wettability, and capillary pressure. The polymer increases the viscosity of the flooding water, reduces water mobility, and thus greatly reduces oil flow ratio so to reduce water flooding fingering, improve horizontal and microscopic pore structure reservoir heterogeneity condition, relieve channeling flow around other phenomena, and increase the flooding swept volume of water.

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“…Masalmeh (2003) studied wettability heterogeneity effects at the core or pore scale. Qiao et al (2012) investigated the interfacial tension behaviors of a series of surfactants and the influencing factors of producing ultra-low interfacial tension. Zhang et al (2006) studied the wettability alteration in chalk to help improve oil recovery.…”

Section: Introductionmentioning

confidence: 99%

Enhanced oil recovery after polymer flooding by wettability alteration to gas wetness using numerical simulation

Cheng

Liu

et al. 2018

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Polymer flooding, as one of the Enhanced Oil Recovery (EOR) methods, has been adopted in many oilfields in China and some other countries. Over 50% oil remains undeveloped in many oil reservoirs after polymer flooding. It has been a great challenge to find approaches to further enhancing oil recovery when polymer flooding is over. In this study, a new method was proposed to increase oil production using gas flooding with wettability alteration to gas wetness when polymer flooding has been completed. The rock wettability was altered from liquid- to gas-wetness during gas flooding. An artificial oil reservoir was constructed and many numerical simulations have been conducted to test the effect of wettability alteration on the oil recovery in reservoirs developed by water flooding and followed by polymer flooding. Production data from different scenarios, water flooding, polymer flooding after water flooding, gas flooding with and without wettability alteration after polymer flooding, were calculated using numerical simulation. The results demonstrate that the wettability alteration to gas wetness after polymer flooding can significantly enhance oil recovery and reduce water cut effectively. Also studied were the combined effects of wettability alteration and reservoir permeability on oil recovery.

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Interfacial tension behavior of double long-chain 1,3,5-triazine surfactants for enhanced oil recovery

Cited by 49 publications

References 24 publications

Use of Aromatic Ionic Liquids in the Reduction of Surface Phenomena of Crude Oil–Water System and their Synergism with Brine

Use of Aromatic Ionic Liquids in the Reduction of Surface Phenomena of Crude Oil–Water System and their Synergism with Brine

Utilization of Surfactant Flooding Processes for Enhanced Oil Recovery (EOR)

Enhanced oil recovery after polymer flooding by wettability alteration to gas wetness using numerical simulation

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