Designed for 15,000-psi operations in 2,500 ft of water or less

The STM-15 E subsea wellhead system is used for wells in 2,500 ft [762 m] of water or less that are being completed with a subsea tree tied back to a fixed bottom-supported platform, and for drilling exploratory wells. The system is ideal for all 15,000-psi drilling and completion operations in moderate water depths. The high-pressure housing is machined from F-22, 85,000-psi-yield forged material and is available for H2S service. The STM-15 E system incorporates the field-proven parallel bore metal (PBM) metal-to-metal seal.

Features and benefits

  • Suitable for 15,000-psi operation, and featuring a single landing shoulder with 7 × 106-lbf end-load carrying capacity
  • Up to 2.5 -ft.lbf bending capacity and 106-lbf tensile capacity
  • Passive lockdown mechanism between high- and low-pressure housings
  • 17.83-in minimum ID bore, which will pass 16-in casing
  • Separate adapter for landing a 16-in hanger with testable retrievable seal
  • 16-in, 3,000-psi casing hanger system available