Tenth Year Annual Report:
Carbon Storage: Storage Results - 2010

Highlights

• Cement durability experiments have been completed and provide the necessary input data for Dynaflow simulations.
• Based on measured corrosion rates, it is predicted that acidified brine would be rapidly neutralized as it flows upward through a crack or annulus in well cement, so small leaks would not grow into large ones as a result of corrosion.
• An apparatus for carrying out indentation measurements has been constructed and permits profiling of the mechanical damage in corroded cement.
• The advanced poromechanical capabilities of dynaflow have been used to simulate injection at In Salah.
• Analytical and semi-analytical models have been expanded to make them more broadly applicable, yielding even faster field-scale simulations with fewer assumption.s
• Simulations of CO₂ injection fields with brine management show that injection pressures can be substantially reduced, allowing for greater injection rates that can be optimized over time.
• Molecular modeling has revealed a strong dependence of gas hydrate stability on the 3-D structure and occupancy of the "cages" that contain CO₂ molecules.

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