A new insight into the separation of oil from oil/water emulsion by Fe<sub>3</sub>O<sub>4</sub>–SiO<sub>2</sub> nanoparticles
<p dir="ltr">Nanofluids have shown their potential in the oil recovery process through surface modification. Due to their surface characteristics, they can apply to improve the oil production from reservoirs by enabling different enhanced recovery mechanisms. The preparation and deve...
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2021
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| الملخص: | <p dir="ltr">Nanofluids have shown their potential in the oil recovery process through surface modification. Due to their surface characteristics, they can apply to improve the oil production from reservoirs by enabling different enhanced recovery mechanisms. The preparation and development of the Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticles for the oil recovery process is an innovative and novel approach that influences the oil generation from reservoirs. The performance of the Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> and the other nanofluids (seawater, Fe<sub>3</sub>O<sub>4</sub>, and SiO<sub>2</sub>) in the enhanced oil recovery process is assessed and compared with other flooding scenarios. The Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs achieved the highest oil production rate of 90.2% while Fe<sub>3</sub>O<sub>4</sub> and SiO<sub>2</sub> NPs achieved 70.8% and 55.3%, respectively. In contrast, the value achieved for the seawater injection was 76.5%. For the oil recovery process, the Fe<sub>3</sub>O<sub>4</sub> was applied for the inhibition (i.e., decrease) of oil sedimentation, and the SiO<sub>2</sub> NPs were applied for wettability alteration and IFT reduction. The experimental results showed that the produced Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> NPs improved the oil recovery rates (90.2%) as well as the synergetic impact of the developed NPs by initiating several mechanisms corresponding to the use of the separate NPs in the micromodel. Moreover, the results exhibited that the reservoir conditions are a crucial function for increasing the oil recovery rates, improving the emulsion stability, and acts as a substantial step for the oil recovery method that applies this particular technique.</p><h2>Other Information</h2><p dir="ltr">Published in: Environmental Research<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.envres.2021.111645" target="_blank">https://dx.doi.org/10.1016/j.envres.2021.111645</a></p> |
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