Interventek has added a gas accumulator to its Revolution valve to increase the power and speed of its cutting and sealing functionality. The new integrated accumulator valve, called the Revolution PowerPlus, will provide a versatile and compact, but highly critical safety barrier below the BOP during subsea intervention operations.
This increased closing speed will improve safety, particularly during gas production, where the speed of closure and the integrity of the seal directly affects the volume of gas prevented from escaping. The new PowerPlus valve is the only ultra-fast shear-and seal safety valve which is driven by a gas accumulator, as traditional safety valves operate at slower rates and mainly rely on hydraulic fluid.
Interventek’s valve can cut and seal in less than 1 second, whereas traditional valves would take significantly longer to achieve closure. It is further differentiated due to its ultra-compact nature, enabling installation below the shear rams on small BOP’s. This allows the well to be contained without resorting to a primary line of defence which is more difficult and costly to remediate after activation.
The first prototype 6⅜” 15,000psi working pressure, in-riser landing string model has been developed and is currently undergoing cutting and sealing qualification tests. It uses resilient primary sealing and will be rated to cut coiled tubing, braided cable and slickline with an automatic, fail-safe close mechanism, operated via existing control systems.
Due to the novel design of the Revolution valve, operators can take advantage of these critical safety benefits for around half the cost of other solutions.