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R Anandan, R Barati, S Johnson - SPE International Hydraulic …, 2018 - onepetro.org

Polyelectrolyte Complex Stabilized CO2 Foam Systems for Improved Fracture Conductivity and Reduced Fluid Loss.

EPSCoR Research Infrastructure Improvement Program AND Program Evaluation

Johnson

GSID: _KYcRy5wnqMJ

Excerpt

The objective of this work was to develop a supercritical CO 2 foam with a liquid phase composed of a polyelectrolyte complex nanoparticle system interacting with a viscoelastic surfactant solution. This is intended to be used as a fracturing fluid to reduce fluid loss and increase post-fracture clean-up efficiency for improved productivity in unconventional reservoirs. In a previous study, we optimized the polycation/polyanion ratio and polyelectrolyte pH using zeta potential and phase-angle light scattering. Rheological and …

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