Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 58, Issue 40, Pages 18601-18612Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.9b03060
Keywords
-
Categories
Ask authors/readers for more resources
Application of nanoparticles for wettability alteration offers a practical approach to resolve some surface-related problems encountered in the nowadays technological process. Examples are underground/subsurface engineering implications, including the enhanced oil recovery from the oil-wet carbonate reservoirs. However, the common wettability evaluating techniques such as contact angle and flotation cannot be representative of the dynamic phenomena occurring at the pore scale and hence are unable to give accurate information about the process. Therefore, in the present work, the electrokinetic evaluations are utilized to explore the wettability alteration of initially oil-wet carbonate rock using silica nanofluids at the porous media conditions. Significant efforts have been considered to design an in-house experimental setup to provide reliable results pertaining to the electrokinetic parameters at the different wetting states. Following the treatment of oil-wet calcite sands using silica nanofluids of different concentrations, the streaming potential coupling coefficient and zeta potential, as well as the excess surface charge, are evaluated. A mechanistic study (demonstrated by FESEM visualizations) along with some averaging schemes reveals that the change in the wettability of oil-wet porous media by silica nanoparticles does indeed affect the electrokinetic attributes of the studied system and thereby can be characterized.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available