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Designed for hostile environments and extended-life applications

The Halliburton NeoStar™ tubing retrievable safety valve (TRSV) is a premium, single-rod-piston, non-elastomer flapper valve for hostile environments and extended-life applications where ultimate reliability is required. The NeoStar TRSV builds on the legacy of the Halliburton SP™ TRSV platform by incorporating enhanced performance features that enable life of well reliability in subsea completions or hostile well environments. 

The field-proven high-performance non-elastomer rod-piston seal system has been installed in over 12,000 Halliburton safety valves. It has been tested at 450°F and 25,000 psi (with gas) as zero-bubble throughout all static and dynamic scenarios. The rod-piston seal system achieves a full metal-to-metal (MTM) seal at its uppermost and lowermost positions to seal well pressure from the control system. 

Features

  • High-performance, non-elastomer, dynamic rod-piston seals
  • MTM static seal at upper and lower rod-piston positions
  • MTM body joints
  • Flow tube fluted guide
  • Flow tube cleanout ports
  • Wiper ring on upper flow tube
  • Internal flow tube exercise profile

Benefits

  • Unsurpassed reliability of hydraulic actuator; dynamic and static seals independently verified gas-tight
  • Control line isolated from well fluids by MTM seal with valve in closed position
  • Hydraulic system isolated from well pressure by MTM seal with valve in open position
  • MTM thread sealing on body connections with Halliburton HST thread technology

The NeoStar TRSV flapper/seat design features an embedded non-elastomer resilient seal for improved low-pressure sealing performance and maintains full MTM flapper/seat sealing capability for high pressure. The field-proven contoured flapper design improves OD/ID relationships, which allows for a wider range of applications and improved line bypass capabilities. A unique patented flapper closure mechanism eliminates coil springs to enhance debris tolerance. 

The NeoStar TRSV quad-plane flapper hinge mechanism increases hinge system strength and improves closure mechanism reliability under harsh (high-rate) flapper closure scenarios. 

The NeoStar TRSV sets the standard for premium, single control line, rod-piston TRSVs.

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