NDLI: Flow Dynamics of Sulfate-Modified Water/Polymer Flooding in Micromodels with Modified Wettability

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Flow Dynamics of Sulfate-Modified Water/Polymer Flooding in Micromodels with Modified Wettability

Content Provider	MDPI
Author	Stefanie, Säfken Tahir, Muhammad Hincapie, Rafael E. Gaol, Calvin L. Ganzer, Leonhard
Copyright Year	2020
Description	This work describes the flow behavior of the oil recovery obtained by the injection of sulfate-modified/low-salinity water in micromodels with different wettabilities. It provides a detailed microscopic visualization of the displacement taking place during modified water flooding at a pore-scale level, while evaluating the effect of wettability on oil recovery. A comprehensive workflow for the evaluation is proposed that includes fluid–fluid and rock–fluid interactions. The methods studied comprise flooding experiments with micromodels. Artificial and real structure water-wet micromodels are used to understand flow behavior and oil recovery. Subsequently, water-wet, complex-wet, and oil-wet micromodels help understand wettability and rock–fluid interaction. The effect of the sulfate content present in the brine is a key variable in this work. The results of micromodel experiments conducted in this work indicate that sulfate-modified water flooding performs better in mixed-wet/oil-wet (artificial structure) than in water-wet systems. This slightly differs from observations of core flood experiments, where oil-wet conditions provided better process efficiency. As an overall result, sulfate-modified water flooding recovered more oil than SSW injection in oil-wet and complex-wet systems compared to water-wet systems.
Starting Page	3239
e-ISSN	20763417
DOI	10.3390/app10093239
Journal	Applied Sciences
Issue Number	9
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2020-05-07
Access Restriction	Open
Subject Keyword	Applied Sciences Petroleum Engineering Wettability Alteration Interfacial Viscoelasticity Sulfate-modified Water Low-salinity Water Recovery Factor
Content Type	Text
Resource Type	Article

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