Sequential deep eutectic solvent and steam injection for enhanced heavy oil recovery and in-situ upgrading

Mohsenzadeh, A.; Al-Wahaibi, Yahya; Al‐Hajri, Rashid; Jibril, Baba Y.; Mosavat, Nader

doi:10.1016/j.fuel.2016.09.077

Cited by 42 publications

(18 citation statements)

References 26 publications

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“…Because DES has the unique advantages of simple preparation, high product purity, and low price, it has been widely used in synthesis, desulfurization, extraction, metal electrodeposition, and other fields. − Recently, a small number of studies have evaluated the lubrication performance of DES. − The results show that some DESs are expected to be an effective substitute for traditional lubricants. DES has been studied to use in the petroleum industry, for example, improving oil recovery, − and inhibiting shale hydration . However, to my knowledge, there are few reports on the use of DES as a lubricant for drilling fluids.…”

Section: Introductionmentioning

confidence: 99%

Novel Environmentally Friendly Lubricants for Drilling Fluids Applied in Shale Formation

Pang

et al. 2021

Energy Fuels

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One of the biggest difficulties with water-based drilling fluids for shale horizontal wells is its relatively high friction, especially for long horizontal wells. Improving the lubricating ability of drilling fluids is very important for expanding the extension range of horizontal wells in unconventional oil and gas wells. In this work, three kinds of lubricants, graphene oxide (GO), choline chloride/glycerol deep eutectic solvent (Gly-DES), and GO/Gly-DES, were synthesized to investigate their ability to improve the lubricity of water-based drilling fluids. These synthesized lubricants were all environmentally friendly. The tribological test and the filter cake adhesion coefficient test were used to compare the lubricity of these fluids. On the other hand, the traditional commercial lubricant solid graphite (HY-202) was taken as the reference sample. The results indicated that GO and Gly-DES can exert a more obvious lubricating effect at much lower concentrations compared to the reference sample. GO (0.25 wt %) can reduce the adhesion coefficient of filter cake by 93.33% and the friction coefficient of drilling fluid by 48.47%. The complex of GO and Gly-DES can further increase the reduction rate of adhesion coefficient and friction coefficient. Whether it was in reducing the adhesion coefficient of the filter cake or the friction coefficient of the drilling fluids, the combined lubrication effect of GO and Gly-DES was significantly better than using GO or Gly-DES alone. GO and Gly-DES decreased the coefficient of friction due to their good ability in producing a strong protective film on the contacting surfaces of the metal and filter cake. GO and Gly-DES can slightly reduce the filtration volume of drilling fluids and are suitable for shale water-based drilling fluids.

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Section: Introductionmentioning

confidence: 99%

Novel Environmentally Friendly Lubricants for Drilling Fluids Applied in Shale Formation

Pang

et al. 2021

Energy Fuels

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“…More effective enhanced oil recovery (EOR) methods that ensure an economical production of the tail end (trapped oil) from these oil fields are being continuously researched. Such technologies include thermal flooding (steam injection, in-situ combustion), chemical (surfactants, polymers, solvents, alkali) flooding, miscible and immiscible gas displacement, and microbial EOR to produce the hard-to-recover oils in older fields [32][33][34]. Among these techniques, chemicals flooding techniques have emerged as one of the most effective techniques to improve crude oil recovery from maturing fields.…”

Section: Application Of Surfactants To Enhance Oil Recoverymentioning

confidence: 99%

Oleochemicals from Palm Oil for the Petroleum Industry

Rabiu¹,

Elias²,

Oyekola³

2018

Palm Oil

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Waste vegetable oils as a sustainable, low-cost and low-toxicity feedstock are attracting more interests for the production of oleochemicals that are excellent substitutes for petroleum-based chemicals widely used in the petroleum industry. The compounds resulting from transesterification-epoxidation-sulfonation of waste vegetable oils have great potential as bio-based surface active agents with extensive application in the petroleum industry. The oleo-surfactant from vegetable oils is gaining increasing attention as alternative to the costlier and non-biodegradable petrochemical-based surfactants currently in use. This chapter reports on cost-effective processes to convert waste palm oil into high-grade surfactants aiming at its filed application in petroleum production to enhance recovery of crude oils from reservoir. The first section focused on the formulation of a high-performance bifunctional solid catalyst with basic and acidic sites that are able to mediate simultaneous esterification and transesterification reactions. In the second part, the methyl esters were epoxidized and then sulfonated to produce the anionic surfactant. The feedstock and the methyl ester produced were analyzed with gas chromatography-mass spectrophotometer (GC-MS) and the sulfonated functional group (S═O) was detected using Fourier-transform infrared spectroscopy (FTIR) analysis.

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“…Later, this group published an article about the recovery and in situ upgrading of heavy oil by sequential DES and steam flooding at 45 and 260 °C. 32 Two choline chloride:urea/glycerol DESs with −NH and −OH functional groups were selected as hydrogen donors. The influences of type and concentration of DES and injection scenario were investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Complex anionic species like [MoO 2 Cl 3 ] − formed from dissolution were the key components directing the upgrading by being internally reduced to MoS 2 , which was the active catalyst for the hydrogenation and hydrotreating reactions. Later, this group published an article about the recovery and in situ upgrading of heavy oil by sequential DES and steam flooding at 45 and 260 °C . Two choline chloride:urea/glycerol DESs with −NH and −OH functional groups were selected as hydrogen donors.…”

Section: Introductionmentioning

confidence: 99%

Intensified Transformation of Low-Value Residual Fuel Oil to Light Fuels with TPABr:EG as Deep Eutectic Solvent with Dual Functionality at Moderate Temperatures

Razavian

Fatemi

2020

Energy Fuels

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The performance of two deep eutectic solvents (DESs) was comparatively inspected in upgrading of heavy residual fuel oil (Mazut) as a chemical additive at different processing temperatures and times of 300−350 °C and 105−420 min, respectively. DESs consisted of ethylene glycol possessing hydrogen-donating groups and tetrapropylammonium bromide (TPABr) or choline chloride (ChCl) possessing alkyl tails with different lengths. Characterization of upgraded liquids processed at 325 °C for 210 min showed that TPABr:EG was three times more effective than ChCl:EG in asphaltene conversion and produced a lighter fuel with higher maltene selectivity. Besides the asphaltene reduction (36%), it was more efficient in desulfurization, with a 12.8% reduction, than dry thermal upgrading, with 5.8% asphaltene and 1.9% sulfur reductions, respectively. Moreover, upgraded oil from the TPABr:EG-incorporated scenario revealed high stability toward regression, and viscosity was well preserved after 3 months. Aside from viscosity measurement, asphaltene determination, elemental CHNS, FTIR, and TGA analyses on upgraded oils, isolated asphaltenes from TPABr:EG-incorporated and dry thermal processes were further characterized by FTIR and NMR to pursue the upgrading events. It was realized that TPABr:EG boosted the structural changes in heavy asphaltenic islands by fragmentation and dealkylation of the heteromacromolecular rings. In fact, it intensified both side aliphatic chain shortening and aromatic core shrinkage appreciably compared to the dry thermal process. On the basis of all of the findings elucidating the dual radical generation and hydrogen donation functionality of TPABr:EG, a mechanism is proposed to shed light on the pathway of influence of this eutectic mixture in the intensification of upgrading heavy oil.

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Sequential deep eutectic solvent and steam injection for enhanced heavy oil recovery and in-situ upgrading

Cited by 42 publications

References 26 publications

Novel Environmentally Friendly Lubricants for Drilling Fluids Applied in Shale Formation

Novel Environmentally Friendly Lubricants for Drilling Fluids Applied in Shale Formation

Oleochemicals from Palm Oil for the Petroleum Industry

Intensified Transformation of Low-Value Residual Fuel Oil to Light Fuels with TPABr:EG as Deep Eutectic Solvent with Dual Functionality at Moderate Temperatures

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