Silica nanofluid flooding for enhanced oil recovery in sandstone rocks

Youssif, Magda I.; El-Maghraby, Rehab M.; Saleh, Sayed M.; Elgibaly, Ahmed A.

doi:10.1016/j.ejpe.2017.01.006

Cited by 134 publications

(64 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus far, silica NPs are the most researched nanomaterials because of their natural occurrence in sandstone formations and low cost [1,10]. Additionally, silica NPs can be synthesized and surface functionalized to meet particular reservoir conditions [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, silica NPs can be synthesized and surface functionalized to meet particular reservoir conditions [8,9]. Promising oil recovery results have been reported in the literature due to silica nanoparticles injection [10][11][12][13][14][15][16][17] under a variety of experimental conditions. That is, the use of silica NPs of variable size, composition, surface functionalities, etc., suspended in aqueous solutions with diverse ionic strength [10][11][12][13][14][15][16] or in non-aqueous solutions [15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polymer-functionalized silica nanoparticles for improving water flood sweep efficiency in Berea sandstones

2020

View full text Add to dashboard Cite

Extraction of oil trapped after primary and secondary oil production stages still poses many challenges in the oil industry. Therefore, innovative enhanced oil recovery (EOR) technologies are required to run the production more economically. Recent advances suggest renewed application of surfacefunctionalized nanoparticles (NPs) for oil recovery due to improved stability and solubility, stabilization of emulsions, and low retention on porous media. The improved surface properties make the NPs more appropriate to improve microscopic sweep efficiency of water flood compared to bare nanoparticles, especially in challenging reservoirs. However, the EOR mechanisms of NPs are not well understood. This work evaluates the effect of four types of polymer-functionalized silica NPs as additives to the injection water for EOR. The NPs were examined as tertiary recovery agents in water-wet Berea sandstone rocks at 60 °C. The NPs were diluted to 0.1 wt. % in seawater before injection. Crude oil was obtained from North Sea field. The transport of NPs though porous media, as well as nanoparticles interactions with the rock system, were investigated to reveal possible EOR mechanisms. The experimental results showed that functionalized-silica NPs can effectively increase oil recovery in water-flooded reservoirs. The incremental oil recovery was up to 14% of original oil in place (OOIP). Displacement studies suggested that oil recovery was affected by both interfacial tension reduction and wettability modification, however, the microscopic flow diversion due to pore plugging (log-jamming) and the formation of nanoparticle-stabilized emulsions were likely the relevant explanations for the mobilization of residual oil.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polymer-functionalized silica nanoparticles for improving water flood sweep efficiency in Berea sandstones

2020

View full text Add to dashboard Cite

show abstract

“…Research on the application of nanoparticles to increase hydrocarbon recovery is rife in literature and the mainly investigated nanoparticle is silica which has gained smallscale application in real oilfields (Afolabi and Yusuf 2018;Cheraghian 2015;Cheraghian and Hendraningrat 2016a, b;Ju et al 2002Ju et al , 2012Ju and Fan 2009;Roustaei and Bagherzadeh 2015;Roustaei et al 2013;Sun et al 2017;Youssif et al 2018;Zallaghi et al 2018). However, research on the effect of nanoparticle on relative permeability is few.…”

Section: Introductionmentioning

confidence: 99%

Pore pressure variation at constant confining stress on water–oil and silica nanofluid–oil relative permeability

Adenutsi

Lai

et al. 2018

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

Studies on stress sensitivity of relative permeability in the laboratory were mostly carried out by varying overburden pressure at constant pore pressure (PP). However, in a real oilfield situation, changes in net stress are induced by changes in PP rather than overburden pressure. This research presents the effect of PP variation at a confining stress of 25 MPa on water-oil and silica nanofluid-oil relative permeability curves. Results showed that, at low PP variations of 0.1, 2, and 5 MPa, two-phase flow parameters exhibited distinct trends. Thus, for water-oil relative permeability, initial water (S wi ) and residual oil (S or ) saturations both decreased as PP increased. End-point oil K ro (S wi ) and water K rw (S or ) relative permeabilities both increased for water flooding. Similar trends were observed for nanofluid flooding. End-point mobility ratio and displacement efficiency both increased with increase in PP within this range for water and nanofluid flooding. At 10 MPa PP, S wi decreased compared to low PP variations, while S or increased significantly. Similar observation was made for nanofluid flooding except for S or which had moderate increment. End-point mobility ratio increased significantly for water flooding, but had a slight increase for nanofluid flooding compared to low PP variations. Displacement efficiency decreased for both water and nanofluid flooding compared to low PP variations. At the same PP, water-oil and nanofluid-oil relative permeabilities showed similar S wi and K ro (S wi ) but differing S or and K rw (S or ). The findings provide insights into the effect PP variation on relative permeability and would be important in flooding design considerations.

show abstract

“…But Zallaghi et al [176] reported an increase from 4.87 to 11.7% in sandstone core when the surface of silica nanoparticles was modified. While Youssif et al [177] concluded that silicon nanoparticle is environmentally compatible with sandstone rocks. Recovery increased by 13.28% with increase in the concentration of nanoparticles and that injecting silica at low concentration rate will decrease the permeability impairment.…”

Section: The Efficiency Of Different Nanoparticles During Oil Displacmentioning

confidence: 99%

Mechanism governing nanoparticle flow behaviour in porous media: insight for enhanced oil recovery applications

Agi

Gbadamosi

2018

Int Nano Lett

View full text Add to dashboard Cite

Nanotechnology has found its way to petroleum engineering, it is well-accepted path in the oil and gas industry to recover more oil trapped in the reservoir. But the addition of nanoparticles to a liquid can result in the simplest flow becoming complex. To understand the working mechanism, there is a need to study the flow behaviour of these particles. This review highlights the mechanism affecting the flow of nanoparticles in porous media as it relates to enhanced oil recovery. The discussion focuses on chemical-enhanced oil recovery, a review on laboratory experiment on wettability alteration, effect of interfacial tension and the stability of emulsion and foam is discussed. The flow behaviour of nanoparticles in porous media was discussed laying emphasis on the physical aspect of the flow, the microscopic rheological behaviour and the adsorption of the nanoparticles. It was observed that nanofluids exhibit Newtonian behaviour at low shear rate and non-Newtonian behaviour at high shear rate. Gravitational and capillary forces are responsible for the shift in wettability from oil-wet to water-wet. The dominant mechanisms of foam flow process were lamellae division and bubble to multiple bubble lamellae division. In a water-wet system, the dominant mechanism of flow process and residual oil mobilization are lamellae division and emulsification, respectively. Whereas in an oil-wet system, the generation of pre-spinning continuous gas foam was the dominant mechanism. The literature review on oil displacement test and field trials indicates that nanoparticles can recover additional oil. The challenges encountered have opened new frontier for research and are highlighted herein.

show abstract

Silica nanofluid flooding for enhanced oil recovery in sandstone rocks

Cited by 134 publications

References 7 publications

Polymer-functionalized silica nanoparticles for improving water flood sweep efficiency in Berea sandstones

Polymer-functionalized silica nanoparticles for improving water flood sweep efficiency in Berea sandstones

Pore pressure variation at constant confining stress on water–oil and silica nanofluid–oil relative permeability

Mechanism governing nanoparticle flow behaviour in porous media: insight for enhanced oil recovery applications

Contact Info

Product

Resources

About