The customer produces oil (and gas) from mature fields via an enhanced (tertiary) recovery process. They alternate, in seven day periods, injecting CO2 and water into the formation.
The specific installation for the HCV Valve was to replace previously used gate valves because of a new internally imposed requirement by the end-user’s engineering group where these valves were required to provide positive/provable isolation (Double Block and Bleed). Historically, the failure mode of the gate valves were the inability to positively isolate the CO2 from water allowing the development of residual carbonic acid damaging valve bodies and seals.
Chromatic initially supplied two (2) 2” ANSI 1500 Class block valves for testing purposes. Valves performed satisfactorily over the span of the following year. The customer installed six (6) 4” ANSI 600 Class, Double Block and Bleed valves to test the reliability of the DBB design. After the successful testing, the customer has placed multiple orders with a cumulative count of more than 400 valves in their West Texas fields.