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Tang, J. (author)Foam has unique microstructure in pore networks and reduces gas mobility significantly, which improves considerably the sweep efficiency of gas injection. Foam injection is thus regarded as a promising enhanced oil recovery (EOR) technology. One key to success of foam EOR is foam stability in presence of oil. This thesis seeks to understand...doctoral thesis 2019
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Tang, J. (author), Vincent-Bonnieu, S.Y.F. (author), Rossen, W.R. (author)We present a CT coreflood study of foam, both pre-generated and generated in-situ, displacing oil, as a function of oil type and saturation. Foam generation and propagation are reflected through sectional pressure measurements. Dual-energy CT imaging monitors in-time phase saturations. With an oil less harmful to foam (hexadecane), injection...journal article 2019
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Tang, J. (author), Vincent-Bonnieu, S.Y.F. (author), Rossen, W.R. (author)We present a CT coreflood study of foam flow with two representative oils: hexadecane C<sub>16</sub> (benign to foam) and a mixture of 80 wt% C<sub>16</sub> and 20 wt% oleic acid (OA) (very harmful to foam). The purpose is to understand the transient dynamics of foam, both generated in-situ and pre-generated, as a function of oil saturation...conference paper 2019