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Tubing pressure insensitive flapper-type safety valve

The Halliburton EquiStar® tubing-retrievable safety valve (TRSV) builds upon the legacy of the Halliburton SP™ TRSV platform with an added proprietary balance line feature that accommodates deep-set applications. The EquiStar TRSV is a non-elastomer rod-piston flapper valve designed to function independently of well pressure. It operates at consistently low hydraulic pressure without the need for gas-charged chambers, which makes it an ideal solution for deepwater, ultra-deepwater, high-pressure/high-temperature (HP/HT), and gas-storage applications. 

Applications

  • Deep-set/deepwater completions
  • Hostile well environments incompatible with elastomers
  • High-pressure production or injection wells

Features

  • Tubing pressure insensitive design
  • Non-elastomer dynamic piston seals
  • Metal-to-metal (MTM) body joints and flapper sealing
  • Flow tube debris barriers and cleanout ports 
  • MTM face seat at flow tube downstop
  • Internal exercise profile

Benefits

  • Setting depths can meet well completion requirements, rather than safety valve limitations 
  • Low hydraulic operating pressure
  • Field-proven, reliable hydraulic actuator; dynamic and static seals independently verified gas-tight
  • Control line isolated from well fluid by MTM seal with valve in closed position

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