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Abstract

Summary

In this study, a combined nanofluid based on mixing Silicon-oxide, Aluminum oxide nanoparticles with 2D-smart nanosheet (MAS2DSN) for enhanced oil recovery is developed. The current single nanofluid flooding method for tertiary or enhanced oil recovery is inefficient, especially when used with low nanoparticle concentration. In this work, we show the potential of mixing nanoparticles with two-dimensional smart nanosheets in one patch as a C-EOR agent. The combination of a Mixture of Aluminum-Silicon nanoparticles with 2D-Smart Nanosheet (MAS2DSN) is used to reduce the IFT and altering the wettability of the sandstone core samples even at low concentrations. The IFT decreases up to 0.16 %, and the contact angle measurements show that the wettability of sandstone is changed from the oil-wet to the water-wet in the presence of MAS2DSN. The laboratory core-flooding experiments were conducted in the sandstone core samples saturated with module oil (20 cP). Stable MAS2DSN nanofluid is applied in core-flood experiments using Al2O3, SiO2, and 2DSN at concentrations of 0.05, 0.05 and 0.005 % respectively, resulting in a 22.9% increase in the oil recovery. This work exposes new opportunities for oil production by using a mixture of nanoparticles.

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/content/papers/10.3997/2214-4609.202010233
2021-10-18
2024-04-28
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