The novel use of Deep Eutectic Solvents for enhancing heavy oil recovery

Mohsenzadeh, A.; Al-Wahaibi, Yahya; Jibril, Abubakar Abbas; Al‐Hajri, Rashid; Shuwa, Suleiman

doi:10.1016/j.petrol.2015.03.018

Cited by 83 publications

(26 citation statements)

References 43 publications

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“…The total RF was calculated as the ratio of produced oil to the original oil in place (OOIP). Values of pore volumes used in these experiments were similar to those used in previously mentioned IL studies …”

Section: Sandpack Flood Studiessupporting

confidence: 59%

“…Although DESs solvents increased the IFT of the system, the RF was enhanced. Around 10 PV of 50 vol% of the same solvents in brine improved the RF to 14 % for DES1 and 23.2 % [OOIP] for DES2 at 45 °C and 8275 kPa (1200 psi) . One of the proposed mechanism to explain the increase in RF was the contribution of the viscous force as the viscosities of DESs solutions were higher than that of brine .…”

Section: Results Of Sandpack Flooding Testmentioning

confidence: 99%

“…Bin‐Dahbag et al found that ammonium based IL was efficient in enhancing the RF up to 4.5 % OOIP, despite the fact that it was not efficient in reducing the IFT of brine‐ medium Saudi crude oil to an ultralow value (IFT of 3.36 mN/m and 1.65 mN/m for 10 % and 20 % salinities, respectively). Mohsenzadeh et al predicted that ILs EOR would not work with heavy oils at room temperature, as they were not efficient in producing a stable emulsion, and decided to raise the temperature in order to improve the IL efficiency . In another study, two Deep Eutectic Solvents (DESs) were used, and instead of lowering the IFT, they caused an increase in the IFT of the system with the addition of 5 mass% DES1 and DES2.…”

Section: Results Of Sandpack Flooding Testmentioning

confidence: 99%

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Enhanced heavy oil recovery using 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate

2016

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Injecting chemicals in reservoirs is an efficient technique to improve oil recovery. In this study, a promising room temperature ionic liquid (RTIL), 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate ([EMIM][Ac]), was injected to enhance the extraction of a heavy oil (14° API) from an unconsolidated sand pack at room conditions. [EMIM][Ac] was mixed with two different synthetic brines (0.1 and 1 mass% NaCl), and injected as a continuous displacing phase to improve heavy oil recovery. The results obtained showed that [EMIM][Ac] is an efficient solvent in the enhancement of the oil recovery factor (RF). The effects of [EMIM][Ac] concentration (C) on the interfacial tension (IFT), surface tension (SFT), zeta potential (ZP), pH, and conductivity (COND) were also investigated. The experimental study clearly demonstrates that [EMIM][Ac] is more efficient in enhancing the recovery of heavy oil than sodium dodecyl sulphate (SDS), a well‐known commercial surfactant.

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Section: Sandpack Flood Studiessupporting

confidence: 59%

Section: Results Of Sandpack Flooding Testmentioning

confidence: 99%

Section: Results Of Sandpack Flooding Testmentioning

confidence: 99%

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Enhanced heavy oil recovery using 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate

2016

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“…Bin‐Dahbag et al reported that the introduction of ammonium‐based IL was efficient in improving the RF, although it was not effective in decreasing the IFT to an ultra‐low value. Other researchers found that although deep eutectic solvents (DESs) mixtures (novel types of ILs) caused an actual increase in the IFT of the system, they still helped enhance the RF . One of the suggested factors to explain the improvement in the RF by DESs solution was the viscous effect.…”

Section: Results Of Sandpack Flooding Testmentioning

confidence: 99%

Alkaline‐ionic liquid slug injection for improved heavy oil recovery

2019

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Chemical flooding has a great potential for improving the recovery factor of heavy oil, especially for reservoirs in which thermal techniques are not applicable. In this novel study, chemical flooding experiments of alkali and alkali þ ionic liquid (AIL) mixtures were performed using unconsolidated sand packs. The aim was to investigate the effect on the recovery factor (RF) of combining an alkali, Na 2 CO 3 , and four different imidazolium-based ionic liquids (1-ethyl-3-methylimidazolium acetate [EMIM][Ac], 1-ethyl-3-methyl imidazolium chloride [EMIM][Cl], 1-butyl-3-methylimidazolium bis(trifluoromethylsulphonyl)imide [BMIM][Tf 2 N], and 1-dodecyl-3-methylimidazolium chloride [DMIM][Cl]). The obtained data show that as the ionic liquid concentration and slug size increase, the recovery factor (RF) was found to increase. The study also demonstrates that ionic liquids (ILs) are better in improving heavy oil than recovery than a well-known surfactant, sodium dodecyl sulphate (SDS). IFT measurements were performed for the Pelican oil used with brine and with [DMIM] [Cl], and [EMIM] [Ac]. The surface tension (SFT) and zeta potential (ZP) were also measured and correlated to the improvement in the RF. The study shows that in the presence of Na 2 CO 3 , the ionic liquid type, concentration, and slug size are important parameters in enhancing heavy oil recovery.

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“…However in cases such as alcohol extraction from aqueous solution, hydrophobic solvents are necessary. Hydrophobic DES is known to have favorable solvation properties for both nonpolar and polar compounds . It is also found effective for the extraction of organic and inorganic compounds .…”

Section: Introductionmentioning

confidence: 99%

Palmitic‐Acid‐Based Hydrophobic Deep Eutectic Solvents for the Extraction of Lower Alcohols from Aqueous Media: Liquid–Liquid Equilibria Measurements, Validation and Process Economics

Verma

Banerjee

2019

Global Challenges

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A new, natural, hydrophobic deep eutectic solvent (NADES) based on DL‐menthol and palmitic acid is adopted for the extraction of alcohols from aqueous phase. DL‐menthol is used as a hydrogen bond acceptor and palmitic acid, being a natural organic acid, as a hydrogen bond donor. The synthesis is carried out by the addition of DL‐menthol and palmitic acid in a defined molar ratio. Physical properties of NADES along with water stability are then measured. Liquid–liquid equilibria (LLE) of lower alcohols, namely, DES (1) + lower alcohols (ethanol/1‐propanol/1‐butanol) (2) + water (3) are carried out at p = 1 atm and T = 298.15 K. LLE results show type‐I phase behavior, where alcohol is preferentially attracted toward DES. The tie lines are then regressed via nonrandom two liquid and universal quasichemical models, which give root mean square deviation (RMSD) in the range of 0.29–0.35% and 0.39–0.75%, respectively. Finally, the quantum‐chemical‐based conductor‐like screening model‐segment activity coefficient is used to predict the tie lines, which gives an RMSD of 2.1–5.2%. A hybrid extractive distillation flowsheet is then used for scale up, process economics, and solvent recovery aspects in ASPEN using DES as a “pseudocomponent.”

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The novel use of Deep Eutectic Solvents for enhancing heavy oil recovery

Cited by 83 publications

References 43 publications

Enhanced heavy oil recovery using 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate

Enhanced heavy oil recovery using 1‐Ethyl‐3‐Methyl‐Imidazolium Acetate

Alkaline‐ionic liquid slug injection for improved heavy oil recovery

Palmitic‐Acid‐Based Hydrophobic Deep Eutectic Solvents for the Extraction of Lower Alcohols from Aqueous Media: Liquid–Liquid Equilibria Measurements, Validation and Process Economics

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