Liberates gas and increases slurry compressibility
Halliburton's Super CBL cement additive reacts with cement slurry to liberate gas and increase compressibility. This additive also promotes gelation and accelerates slurries.
Super CBL additive helps improve the cement bond between pipe and formation, and can be used in wells with severe flow potential. The additive is environmentally safe and contains no toxic ingredients.
Super CBL™ and Super CBL™ EXP additives are plastic-state additives designed to help compensate for cement shrinkage. Cement shrinkage is a combination of the volume reduction caused by the chemical hydration process of cement and the fluid loss to the formation.
Gas migration can be the result of slow static gel strength development, downhole volume losses or higher then expected reservior pressure. Operators can predict the potential for gas migration and use one or a combination of available treatments to help prevent gas flow.