Porous media are analyzed to evaluate the efficiency of the aqueous nanofluids system containing surfactant and polymer as an additive in recovering the oil during enhanced oil recovery methods through an Amott cell. The porous media have low permeability and porosity. The lithology of the cores samples is mostly same and are sandstone. The elemental composition of the core samples is determined by the X-ray diffraction (XRD) analysis. The light crude oil used for the investigation is sourced from the Narimanam oil field of India. The nanoparticles of the nanofluids are characterized by SEM (scanning electron microscope) analysis. The measured porosity value of both the core samples lies between 15 to 21 % collected from the Indiana field from an outside agency. The impact of nanoparticle concentration in the nanofluids for oil recovery is analyzed at the high temperature in Amott cells. A good oil recovery of about 50% is observed for the nanofluid containing a higher concentration of silica nanoparticles. A comparative study between different Indiana core samples for oil recovery is studied to understand the impact of nanofluids in oil recovery on the heterogeneous reservoir’s rock. The result outlined will help in understanding the possible future application of the hybrid injected fluid containing low salinity-surfactant-polymer-nanoparticles in enhanced oil recovery.

Evaluation of the aqueous nanofluids system with surfactant-polymer as an additive through spontaneous imbibition experiment relevant for enhanced oil recovery

ACS Spring Meeting 2021

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