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Experimental study of mobility control by foams : potential of a FAWAG process in pre-salt reservoir conditions

Abstract : This thesis aimed at advancing our knowledge of the rheological behavior of foams in porous media. For that, we performed a comprehensive systematic petrophysical study of foam flow in porous media to determine the impact of foam quality, flow rate (interstitial velocity), permeability, pressure and gas composition on foam performance. Our findings show that the data obtained over a range of foam qualities, interstitial velocities and permeabilities converged to a power law master curve, independently of the flow regime, once the rheological behavior of strong foam was expressed in terms of apparent viscosity as a function of shear rate. The master curve obeys a power law with a universal exponent of -2/3. We found experimental and theoretical evidence in the literature for the value of the exponent. Our results also showed that foam was less effective in reducing gas mobility as pressure increased and that at sufficiently low pressures, the gas composition has no effect on foam performance. However, at high pressures, the gas composition becomes a determinant parameter, and all components must be considered. We found a master curve for foam performance which allows us to extrapolate foam efficiency for different compositions at different pressures. The experimental correlations obtained by these original approaches hold immense potential to advance the physical modeling of foam flow in porous media. Therefore, both approaches and correlations above can be used to refine foam flooding modeling, thus improving the simulation of Foam-EOR process and its reliability.
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Submitted on : Monday, September 24, 2018 - 1:58:07 PM
Last modification on : Sunday, October 25, 2020 - 4:56:51 PM
Long-term archiving on: : Tuesday, December 25, 2018 - 1:55:53 PM


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  • HAL Id : tel-01879984, version 1


Lucas Gomes Pedroni. Experimental study of mobility control by foams : potential of a FAWAG process in pre-salt reservoir conditions. Chemical engineering. Université Pierre et Marie Curie - Paris VI, 2017. English. ⟨NNT : 2017PA066564⟩. ⟨tel-01879984⟩



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