An evaluation of modified silica nanoparticles’ efficiency in enhancing oil recovery of light and intermediate oil reservoirs

Roustaei, Abbas; Saffarzadeh, Sadegh; Mohammadi, Milad

doi:10.1016/j.ejpe.2013.06.010

Cited by 182 publications

(116 citation statements)

References 11 publications

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“…For example, Li et al 10 found that nanoparticles can change an already water-wet rock surface to a more water-wet surface, while Karimi et al 13 found that an oil-wet rock surface can be made to be strongly water-wet by ZrO 2 nanoparticles, leading to a considerable amount of oil recovery. By contrast, Roustaei et al 9 have argued that changing the rock surface towards oil-wet could change the role of the capillary force from a barrier to a driving force, which would be beneficial for oil recovery. In addition, several authors 17, 63, 73 have proposed that the main mechanism for NanoEOR is wettability change of rock surface from either water or oil wet to neutral wettability.…”

Section: The Surface Wettability Effectmentioning

confidence: 99%

“…One of the proposed mechanisms for NanoEOR requires that nanoparticles reduce the oil/water interfacial tension and consequently improve the oil recovery 9,10,38,63 . This mechanism is applicable mainly to the mobilisation of residual oil which is trapped by capillary forces, and is governed by the dimensionless Capillary Number Ca, which shows the relative importance of the viscous force to…”

Section: The Capillary Effectmentioning

confidence: 99%

“…Multiple possible mechanisms have been proposed to explain the effect of nanoparticles on EOR, including: (i) viscosity increase for mobility control 34 , (ii) substrate wettability change 9,10,13,17 , (iii) the effect of structural disjoining pressure 17,35,36 , (iv) the reduction of the displacing fluid/oil interfacial tension 9,10,37,38 , and (v) the log-jamming effect 3,39 . However none of them have been found to provide sufficient explanation for the observed EOR enhancements.…”

Section: Introductionmentioning

confidence: 99%

“…It is thought that the small particle sizes (<100 nm) would allow them to pass through pore throats of a reservoir rock and be delivered to the locations of the pore network where they can make an active and significant difference in some way. The addition or deposition of different nanoparticles could modify the displacing fluid's effective properties such as viscosity [6][7][8] , interfacial tension 9,10 , and dielectric properties 11 ; change the permeability of the rock matrix 12 ; or alter the rock surface wettability 10,13 . In addition, the size-dependent properties (i.e., optical, magnetic, electrical, thermo-physical and interfacial properties) of nanoparticles can be used as sensitive down-hole sensors to target locations that are inaccessible by conventional methods 5,14,15 .…”

Section: Introductionmentioning

confidence: 99%

“…The use of nanoparticles for EOR has received intensive attention since 2008, and much work has been conducted that can be generally categorised as, (i) the development of 'contrast-agent' type of NPs to improve the detection limitation of seismic and electromagnetic (EM) techniques and to provide better reservoir characterisation [14][15][16] ; (ii) the use of NPs as property modifiers, i.e., to alter rock wettability and interfacial tension at the oil/water interface in order to increase oil recovery rate 9,10,13,17 ; and (iii) the use of NPs for conformance control such as nanoparticle-stabilised emulsions, and gelation materials to block easy flow paths 18,19 .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Nanoparticle-Assisted Water-Flooding in Berea Sandstones

Azmi

Raza

et al. 2016

Energy Fuels

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ABSRACT:The use of nanoparticles (NP) to improve reservoir characterisation or to enhance oil recovery (EOR) has recently received intensive interest; however there are still many un-resolved questions. This work reports a systematic study of the effect of rutile TiO 2 nanoparticle-assisted brine flooding. Rutile ellipsoid TiO 2 nanoparticles were synthesised and stabilised by tri-sodium citrate dehydrate for brine flooding of water-wet Berea sandstone cores. Careful characterisation of the rock samples and nanomaterials before and after the flooding was conducted, and the relative contributions to the modified flooding results from the stabiliser and the nanoparticles of different concentrations were examined. The oil recovery performance was evaluated both at break-through (BT) point and at the end of flooding (~3.2 pore volumes). Nanoparticle migration behavior was also investigated in order to understand the potential mechanisms for oil recovery. The results showed that both nanoparticle transport rate and EOR effect were strongly dependent on the particle concentration. The oil recovery efficiency at the BT point was found to increase at low nanoparticle concentrations but decrease at higher values. A maximum 33% increase of the recovery factor was observed at the BT point for a TiO 2 concentration of 20 ppm, but higher nanoparticle concentrations usually had higher ultimate recovery factors. The presence of oil phase was found to accelerate the particle migration though the core. The discussion of various mechanisms suggested that the improvement in the mobility ratio, possible wettability change and log-jamming effect were responsible for the observed phenomena.

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Section: The Surface Wettability Effectmentioning

confidence: 99%

Section: The Capillary Effectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nanoparticle-Assisted Water-Flooding in Berea Sandstones

Azmi

Raza

et al. 2016

Energy Fuels

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Polystyrene nanoparticles as surfactant carriers for enhanced oil recovery

Ávila

Araujo

Drexler

et al. 2016

J of Applied Polymer Sci

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It is well known that oil recovery processes can be increased by surfactant solution injections in the reservoir. However, the high adsorption of this type of compounds on the reservoirs rocks surface is one of the factors that have been preventing the Enhanced Oil Recovery (EOR) development and the economicity of the process. This work presents the synthesis of cross‐linked polystyrene nanoparticles (PSNP) and their evaluation as surfactant carriers, able to percolate through the reservoirs pores and to deliver it at the water/oil interface. The nanoparticles were synthesized by emulsion polymerization of styrene and divinylbenzene in the presence of nonylphenol ethoxylate‐10 (NF‐10EO) or sodium dodecyl sulphate. Photon Correlation Spectroscopy and Interfacial Tension results gave support to the initial supposition that the nanoparticles would swell when in contact with the oil phase, releasing the surfactant at the interface. The nanoparticles obtained with NF‐10EO were able to reduce the water/oil interfacial tension to values that were similar to the ones obtained with the aqueous solution of NF‐10EO. The results suggest that the PSNP have a great potential to be used as surfactant carriers in EOR. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43789.

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Influence of different nanoparticles on the gas injection performance in EOR operation: Parametric and CFD simulation study

Gharibshahi,

Jafari,

Asadzadeh

2023

Can J Chem Eng

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This study aims to simulate the process of enhanced oil recovery (EOR) during gas injection along with nanoparticles and investigate the affecting parameters in a conventional carbonate oil reservoir. Ansys Fluent software with a suitable multiphase model was used to simulate natural gas injection with a nanoparticle into a core sample. The simulation model was validated with a laboratory test of natural gas injection. Then, to obtain the optimal values of each of the parameters affecting the process of EOR during the natural gas injection along with nanoparticles, the design of the experiment was carried out with the help of Qualitek‐4 software and the Taguchi method. Therefore, three factors, including nanoparticle type (clay, titanium oxide, and silica nanoparticles), nanoparticle diameter (2–50 nm), and the volume fraction of nanoparticles in the base fluid (0.5–5 vol.%), as influential factors on the EOR during natural gas injection along with nanoparticles were chosen. The results of the numerical study indicated that silica nanoparticles significantly affect EOR more than clay and titanium oxide nanoparticles. Moreover, the smaller the diameter of nanoparticles (close to 2 nm) and the more significant the volume fraction of nanoparticles in the base fluid (close to 5 vol.%), the higher the oil recovery factor will be. This phenomenon occurs due to changes in the density and viscosity of the base fluid and, consequently, improves the mobility ratio of the injected fluid. On the other hand, the tiny size of nanoparticles allows them to easily enter the pores of the reservoir rock without entrapping and producing oil from them. Eventually, the highest oil recovery factor (59%) was obtained using silica nanoparticles with a diameter of 2 nm and a volume fraction of 5 vol.% in natural gas injection.

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An evaluation of modified silica nanoparticles’ efficiency in enhancing oil recovery of light and intermediate oil reservoirs

Cited by 182 publications

References 11 publications

Nanoparticle-Assisted Water-Flooding in Berea Sandstones

Nanoparticle-Assisted Water-Flooding in Berea Sandstones

Polystyrene nanoparticles as surfactant carriers for enhanced oil recovery

Influence of different nanoparticles on the gas injection performance in EOR operation: Parametric and CFD simulation study

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