Engineered, tested, and qualified to function effectively even at extremely low temperatures
These valves are set at shallow depths in CCS monitoring or injection wells (Class VI wells, used for geologic sequestration of CO2).
Integrity CCS safety valves serve as the ultimate defense in the complex process of carbon capture, utilization, and sequestration (CCUS), safeguarding operations and personnel in the event of compromised well integrity.
They are specifically designed to perform reliably at low temperatures and prevent the uncontrolled release of CO2, which would increase emissions and pose significant HSE risk by rapidly depleting oxygen levels in the vicinity. The valves effectively mitigate these risks; it is advisable to pair them with monitoring and alarms.
The valves are qualified for CO2 applications with patented seal technology and resilient materials. Stringent testing and qualification processes ensure valve performance in extremely cold conditions, especially during emergency closures.
The valve actuator incorporates multizone seal technology to provide a dynamic seal solution that surpasses traditional seal systems in reliability. Designed for high performance and longevity, the actuator requires hydraulic pressure for operation, which simplifies control system requirements. This combination of advanced technology and thoughtful design ensures the effectiveness and dependability of Integrity CCS safety valves.
The valves are validated to API Spec 14A V1, but their performance exceeds the certification requirements.
Flapper leakage: API Spec 14A allows leakage up to 5 ft3/min. The acceptance criterion for Integrity CCS safety valve flapper systems is bubble-tight performance.
Hydraulic actuator integrity: API Spec 14A allows up to 5% drop in applied hydraulic pressure; for 10,000-psi hydraulic pressure, the acceptable leakage is 500 psi. Integrity CCS safety valve actuators allow <1% drop, as confirmed by rigorous tests.
Slam closure: The valve's flapper system has been successfully slam tested at high flow rates that exceed the Annex K requirements of API Spec 14A.