EverCRETE

The EverCRETE™ CO₂-resistant cement system serves as barrier for CO₂ storage wells or high-CO₂-producing formations. In addition, the system can be used to cement new CO₂ injection wells or to plug and abandon injection or production wells at the end of the field life. EverCRETE system lowers the CO₂ footprint during well construction due to significantly reduced usage of portland cement. In addition to being used as a cement across potential CO₂-producing formations, it can act as the primary barrier in the wellbore for in situ fluids after abandonment and permanent decommissioning. For wells in fields that use CO₂ injection for enhanced oil recovery (EOR) or may use it in the future, EverCRETE system reduces the risk of cement sheath degradation and leakage.

• Carbon capture and storage wells
• Wells in fields that use CO₂ injection for enhanced oil recovery
• Primary cementing in CO₂ environments
• Long-term decommissioning objectives for plug and abandonment in CO₂ environments

• Resists cement matrix attack from wet supercritical CO₂ and water saturated with CO₂
• Can be prepared locally using the standard bulk plant
• Offers the option to be engineered with self-healing capabilities

In case there is damage to the cement matrix and CO₂ starts to migrate, the self-healing capabilities that can be incorporated in EverCRETE system will repair the crack, reestablishing the integrity of the well and recovering zonal isolation.