BOP Safety Valve

bop safety valve

Description

The BOP Safety Valve is a fail-safe sub-surface barrier. It rapidly closes the test string in an emergency. The Safety Valve is held in the BOP so that when activated, the ball valve will seal off the string below. Meanwhile, pipe rams can be activated to seal off the annulus.

The Safety Valve is operated by two separate hydraulic lines, with the ball valve held in the closed position by a spring and nitrogen-charge assembly. A control line is pressurized to open the valve. Bleeding off this pressure causes the valve to close. Additional closing pressure can be added to the balance line to allow for cutting of coiled tubing or wireline in emergency situations. Chemical injection ports can be configured to allow for chemicals to be pumped either above or below the ball.

Features

  • IconHeld open by surface-applied hydraulic power unit, fail-closed ball
  • IconNitrogen charge chamber to increase closing speed
  • IconBalance line for applying additional closing/cutting force
  • IconChemical injection, above or below ball (optional)
  • IconCapable of cutting wireline and coiled tubing

Applications

  • IconDrill stem testing
  • IconCoiled tubing operations
  • IconWell kill operations
  • IconWireline operations

Competitor Comparable Tools

Competitor Tool / Tool NameModel
Schlumberger Surface Controlled Subsurface Safety ValveSCSSV
HalliburtonSuper Safety Valve

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