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Imaging techniques as tool in the characterization of the impact of silica nanofluid in Indiana limestone


Abstract Indiana limestone is composed mainly of calcite and aragonite minerals, which are different crystalline forms of calcium carbonate. Due to its composition of almost pure calcium carbonate (around 97%), it is widely used in the petroleum industry as a standard porous media for laboratory experiments with a huge scope in industrial applications. A method to improve oil recovery is associated with the use of nanoparticles (NP). One of the most promising is presented to be that of silica (Si) NP, because of their compatibility with the reservoir and subsurface abundance. In this work, we applied Si NP at a concentration of 0.5%, prepared in a base fluid of 1000 ppm in crude oil, injected in Indiana limestone and tested them with microtomography (microCT) and micro x‐ray fluorescence (microXRF) techniques to evaluate the impact of the treatment. Combining morphological results with the mapping of the elements, a more complete characterization of the sample is possible for a better understanding of these interactions applied in oil field industries.
Authors Olga Maria Oliveira de Araújo ORCID , Keerti Vardhan Sharma University of WyomingORCID , Caio M. S. F. F. dos Santos ORCID , Marcus V. S. Da Silva ORCID , Ramon S. Santos ORCID , M.J. Anjos ORCID , Davi F. Oliveira ORCID , Alessandra Silveira Machado ORCID , Ricardo Tadeu Lopes ORCID
Journal Info Wiley | X-Ray Spectrometry , vol: 52 , iss: 6 , pages: 378 - 384
Publication Date 3/26/2023
ISSN 0049-8246
TypeKeyword Image article
Open Access closed Closed Access
DOI https://doi.org/10.1002/xrs.3343
KeywordsKeyword Image Nanofluids (Score: 0.462034)