Simply built microfluidics for fast screening of CO2 foam surfactants and foam model parameters estimation

Guoqing Jian, Ayrat Gizzatov, Mohammed Kawelah, Zuhair AlYousef and Amr I. Abdel-Fattah

Applied Energy, 2021, vol. 292, issue C, No S0306261921003160

Abstract: Surfactant-stabilized CO2 foam is a promising technique to increase an oil reservoir’s sweep efficiency and therefore produce more oil. The development of successful CO2 foam formulations requires extensive screening and development of commercially available and new chemicals. In this work, we provide a detailed procedure to build a cost-efficient microfluidic device for rapid prescreening of CO2 foam surfactants. Several surfactant-stabilized CO2 foams were successfully tested using the device which demonstrated complete foam quality testing to pre-screen a surfactant in less than an hour. Foam measurements successfully differentiated between different surfactant solutions and showed an increase of viscosity in comparison to CO2 and brine flood alone. The microfluidic device enabled systematic studies of the effect of chip geometry, surfactant type and concentration, injection flow rate, gas fractional flow, and oil fractional flow on CO2 foam strength. The steady-state foam results from the device were used to estimate the texture implicit foam model parameters. The method provided is not only robust for fast surfactant screening, but also for understanding the foam fluids transport phenomenon and foam modeling using microfluidics.

Keywords: Surfactant; CO2 foam; Microfluidics; Foam model (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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DOI: 10.1016/j.apenergy.2021.116815

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