Mineral Alteration of Shales by CO2 and Brine Containing Surfactants
- Univ. of Texas, Austin, TX (United States); University of Texas at Austin
The overall goal of the proposed research was to determine the effect of surfactants on shale mineral reactivity with CO2 and brine. The specific objectives of the proposed work were to 1) Determine the effect of shale mineralogy and surfactant properties on surfactant adsorption and wettability alteration, 2) Determine the effects of surfactant adsorption and wettability alteration on mineral reactivity with CO2 and brine for varying hydrodynamic conditions, and 3) Develop a modified mineral reaction model with CO2 and brine that considers the effects of surfactant adsorption. Four tasks were performed to address the project objectives. These were 1) Select and characterize shale samples, 2) Evaluate the effects of surfactant and reservoir properties on adsorption and mineral reactivity, 3) Determine the effects of surfactant adsorption, wettability alteration, and hydrodynamics on mineral reaction kinetics, and 4) Quantify how surfactant sorption and mineral wettability alteration affect mineral reaction modeling. This final report summarizes results in each of these tasks, as well as associated publications.
- Research Organization:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
- DOE Contract Number:
- SC0017328
- OSTI ID:
- 1983602
- Report Number(s):
- DOE-UTA--17328
- Country of Publication:
- United States
- Language:
- English
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