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Stability of fluorosurfactant absorption on mineral surface for water removal in tight gas reservoirs

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Author
Chen, Zhangxing (John)
You, L.
Zhang, W.
Kang, Y.
Liu, X.
Accessioned
2017-03-16T22:56:13Z
Available
2017-03-16T22:56:13Z
Issued
2015
Type
journal article
Metadata
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Abstract
Long-term effectiveness of rock wettability alteration for water removal during gas production from tight reservoir depends on the surfactant adsorption on the pore surface of a reservoir. This paper selected typical cationic fluorosurfactant FW-134 as an example and took advantage of Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and atomic force microscope (AFM) to investigate its adsorption stability on the rock mineral surface under the oscillation condition at high temperature for a long time. The experimental results indicate that the F element content on the sample surface increases obviously, the surface structure of fluorine-carbonization also undergoes a significant change, and the fluorine surfactant exhibits a good interfacial modification and wettability alteration ability due to its adsorption on the pore surface transforming the chemical structure of the original surface. The adsorption increases indistinctly with the concentration of over 0.05% due to a single layer adsorption structure and is mainly electrostatic adsorption because the chemical bonding between the fluorosurfactant and the rock mineral surface, the hydrogen bonding, is weak and inconspicuous.
Grantingagency
NSERC
Refereed
Yes
Sponsorship
Industrial consortium in Reservoir Simulation and Modelling; Foundation CMG; Alberta Innovates.
Department
Chemical & Petroleum Engineering
Faculty
Schulich School of Engineering
Institution
University of Calgary
Publisher
Journal of Chemistry, vol. 2015
Doi
http://dx.doi.org/10.1155/2015/980439
http://dx.doi.org/10.11575/PRISM/35034
Uri
http://hdl.handle.net/1880/51871
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