• We’ve partnered with Tejas Research & Engineering, a respected expert in safety valve development with nearly two decades of experience, to commercialize a new line of subsurface safety valves (SSSVs). The new valves meet the rigorous standards set forth in API Specification 14A and are tested beyond the HPHT specifications of Annex H, drawing upon a legacy of engineering experience while recognizing the need for an evolution in quality and reliability. 

    The new surface-controlled, tubing-retrievable SSSVs are rated for working pressures up to 10,000 psi (68 948 kPa) and temperatures up to 300°F (149°C). The valves use a non-elastomeric, single-piston actuator, optional self-equalizing flapper, and metal-to-metal flapper closure seal to provide 100% well containment when closed. Our 2⅞-in. safety valves are available now, and additional sizes are forthcoming.

    We recently contributed a joint article with Tejas on the new SSSVs to E&P magazine’s “Tech Watch” section, which highlights products that have the potential to address significant upstream challenges. Read the full piece here.
     

    Published Date: 2018-06-18
    Source: National Oilwell Varco