Self-healing cement
Superior Energy Services (Houston; superiorenergy.com has launched RestoreCem, a self-healing cement system. RestoreCem’s self-healing behavior enables it to regain its zonal isolation properties and restore the cement sheath against induced cracks, microfractures or micro annuli, minimizing the risk of cement sheath failures that can lead to hydrocarbon percolation within the set cement, or even blowouts. RestoreCem is said to have improved mechanical properties over conventional cement, providing set cement downhole with the resilience, endurance and elasticity to better withstand changes in stresses over the well production cycle. RestoreCem covers a wide range of downhole temperatures (80–300°F) and a wide range of slurry weights and densities.