An Experimental Study of Enhanced Oil Recovery Using Nanofluids Flooding
Over the past decade, a number of nanotechnology studies have been published highlighting its benefit for the oil and gas industries.Some of them discussed the potential of using nanoparticles for enhanced oil recovery (EOR) in the laboratory.Some possible EOR mechanisms of nanofluids have been proposed, such as disjoining pressure gradient (Chengara, 2004;Wasan, 2011), interfacialtension (IFT)reduction, wettability alteration and plugging of pore channels.Hence, the objective of the researchpresented in this paper wasto investigate the potential of hydrophilic silica nanoparticle suspension as a new EOR method and to determine the main mechanisms of nanofluids for EOR.The experimental results indicate that nanofluids can reduce the IFT between the water phase and the oil phase and make the solid surface more water wet.In the visualization glass micromodel flooding experiments,thenanofluids released oil drops trapped by capillary pressure, while the high-concentration nanofluids stabilized the oil-water emulsion.Additionally, the nanoparticles absorbed on the glass micromodel, and the permeability decreasedafter theinjection of nanofluids.These results indicate that nanoparticles havepotential as EOR agents.The future expectation is that nanoparticles could mobilize more oil in the pore network in oilfields to improve oil recovery.
Shidong Li Luky Hendraningrat Ole Tors(ae)ter
Norwegian University of Science and Technology
国内会议
青岛
英文
83-90
2013-06-26（万方平台首次上网日期，不代表论文的发表时间）