Colloidal Dispersion Gels Improve Oil Recovery in a Heterogeneous Argentina Waterflood

By  D. Diaz, Repsol; C. Somaruga, Universidad del Comahue; C. Norman, J. Romero TIORCO INC May 21, 2009

The Loma Alta Sur Field is a mature waterflood in the Neuquén Basin of Argentina. The productive formation (Grupo Neuquen) consists of numerous fluvial, multi-layer sandstone packages.  Extensive diagnostics, including tracers, injection profiles, review of historical production and reservoir fluid analysis corroborated the combined effect of reservoir heterogeneity and an adverse mobility ratio. 

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