Vertical Dual-Bore Subsea Tree System

Operational flexibility with minimal opex

We offer a wide range of vertical dual-bore subsea tree configurations, from conventional shallow-water trees to deepwater monobore riser versions that incorporate nested annulus valves. Our dual-bore trees leverage the system's initial investment to provide operational flexibility with minimal opex.


  • Dedicated production and annulus bores with vertical access
  • All valves located vertically within the main valve body above the tubing hanger
  • Unique capability of leaving the tubing undisturbed if the tree needs to be removed for workover or repair operation
  • All downhole functions provided through the bottom of the tree to the top of the tubing hanger via hydraulic or electrical connections
  • Available options for shallow-water and deepwater environments
Vertical dual-bore subsea tree rendering