All Days 2012
DOI: 10.2118/156976-ms
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An Experimental Investigation of Polysilicon Nanoparticles’ Recovery Efficiencies through Changes in Interfacial Tension and Wettability Alteration

Abstract: New technologies are emerging oil industry to afford the need for increasing oil recovery from oilfields, one of which is Nanotechnology. This paper experimentally investigates a special type of Nanoparticles named Polysilicon ones which are very promising materials to be used in near future for enhanced oil recovery. There are three types of Polysilicon Nanoparticles which can be used according the reservoir wettability conditions. In this paper, hydrophobic and lipophilic polysilicon (HLP) and naturally wet … Show more

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Cited by 117 publications
(75 citation statements)
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“…To increase the contact angle, lipophilic polysilicon NPs with surface modification can be used (Ju and Fan, 2009). Hydrophobic and neutral wet polysilicon nano fluids with concentration 4 g/L successfully altered sandstone contact angle from 50 to 84.56 and 98.12 , respectively (Roustaei et al, 2012). Cupric oxide (CuO) NPs increased water contact angles from less than 5 up to 130 and 150 with amine-and thiol-modified surfaces, respectively (Basu et al, 2011).…”
Section: Nanoparticle Injection For Wettability Alteration In Unconvementioning
confidence: 99%
See 1 more Smart Citation
“…To increase the contact angle, lipophilic polysilicon NPs with surface modification can be used (Ju and Fan, 2009). Hydrophobic and neutral wet polysilicon nano fluids with concentration 4 g/L successfully altered sandstone contact angle from 50 to 84.56 and 98.12 , respectively (Roustaei et al, 2012). Cupric oxide (CuO) NPs increased water contact angles from less than 5 up to 130 and 150 with amine-and thiol-modified surfaces, respectively (Basu et al, 2011).…”
Section: Nanoparticle Injection For Wettability Alteration In Unconvementioning
confidence: 99%
“…Significant change of contact angle in sandstones and carbonates with variations of salinity and pH has been reported with regards to low salinity waterflooding Morrow and Buckley, 2011). Presently, intensive research is ongoing for wettability alteration using nanoparticles (Roustaei et al, 2012;Arab and Pourafshary, 2013;Hendraningrat et al, 2013;Assef et al, 2014). To some extent, surface contact angle can be controlled by varying concentrations and compositions of injected agents.…”
Section: Introductionmentioning
confidence: 99%
“…Based on previous studies, reduction of the interfacial tension between oil and water and alteration of the rock wettability toward water-wet condition can be identified as the chief mechanisms of improving oil recovery by silica nanoparticle (Ayatollahi et al 2012;Roustaei et al 2012;Torsater et al 2012;Giraldo et al 2013). In other words, oil recovery factor can be improved by nanoparticles through various mechanisms from IFT reduction to decreasing the oil viscosity to wettability alteration and improving the mobility ratio (Khademolhosseini et al 2015).…”
Section: Introductionmentioning
confidence: 99%
“…MgO and ZnO in distilled water and brine generated pore blockages and reduced permeability. Roustaei et al (2012) Hydrophobic and lipophilic polysilicon (HLP) Naturally wet polysilicon (NWP) EOR in sandstone core flooding experiment.…”
Section: % Brine Solutionmentioning
confidence: 99%
“…The unique surface properties of nanoparticles have generated significant interest in conventional oil and gas research as a means of penetrating small sandstone pores to alter the wetting properties of the rock to improve oil recovery, partly reviewed in Table 6-1. Based on this review there are three primary mechanisms by which nanofluids improve oil recovery: 1) reduction in interfacial tension which reduces the deformation energy for oil droplets to move through pore throats, (Donaldson et al, 1989;Roustaei et al, 2012); 2) alteration of surface wettability by nanoparticle adhesion (Vafaei et al, 2006;Zhang et al, 2014); and 3) nanoparticle structuring (colloidal ordering and layering) in the wedge of the film that enables fluid displacement (Wasan and Nikolov, 2003).…”
Section: Introductionmentioning
confidence: 99%