Interventek Launches Revolution PowerPlus Safety Valve Technology at Subsea Expo

Source: www.gulfoilandgas.com 1/28/2019, Location: Europe

Subsea oil and gas engineering firm, Interventek, will unveil the development of the industry’s first subsea shear-and-seal safety valve powered by an integrated gas accumulator at next week’s Subsea Expo show in Aberdeen, UK.

This innovation builds on Interventek’s existing, award-winning, Revolution valve technology by adding a gas accumulator within the valve, close to the cutting and sealing mechanism. It increases the power and speed of the valve’s functionality and provides a failsafe mode triggered in the event of an emergency.

The new integrated gas accumulator valve, called the Revolution PowerPlus, will provide a versatile and compact, but highly critical safety barrier within the BOP (and below the primary shear rams) during subsea well completion or intervention operations. The valve will rapidly cut any intervention media such as slickline, braided electric cable, coiled tubing or coiled tubing with braided electric cable and seal the wellbore, containing pressure and allowing the intervention vessel to disconnect should the need arise.

The increased closing speed, of less than one second, 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. Traditional safety valves operate at much slower rates and mainly rely on hydraulic fluid with a power source located further away from the cutting and sealing mechanism, typically above the BOP shear rams, which take longer to activate.

The compact nature of this valve is a major advantage, allowing it to be installed below the shear rams, even on small BOP’s. This means the well can be contained by the Revolution Valve, without resorting to the shear rams, which are principally a last line of defence and much more difficult and costly to remediate after activation. The efficient, compact design is also the reason that the valve is able to incorporate the gas accumulator power source within its housing.


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