SingleBore™ Production Trees Brochure

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Dril-Quip’s SingleBore™ Production System is a field-proven, time-saving and cost-effective alternative to a traditional dual bore completion system design. The SingleBore™ Production System allows hydraulic control of the annulus access valve in the tubing hanger through a dedicated control line in the umbilical. This feature eliminates the need for running and retrieving the wireline plug and the need for a DualBore™ Completion Riser. The SingleBore Tree and tree cap running and retrieving tool can incorporate a shearing gate valve, providing EDP and LRP wireline services.







The SingleBore Tubing Hanger System with SB-Valve technology provides the following benefits:

  • The SingleBore Tubing Hanger allows downhole safety valve control, injection line connections, downhole temperature and pressure monitoring as well as a submersible pump power cable if required
  • Tubing sizes up to 7" can be accommodated while maintaining a 2" annulus access
  • Dril-Quip's patented SB-Valve replaces annulus plug profile in the tubing hanger and the necessity for DualBore running string
  • The SB-Valve is pressure balanced so that pressure in the annulus will not accidentally open or close the bore

These unique features of the SingleBore Tree enable operators to save time and money:

  • Workover riser system and surface tree are simpler and less expensive than systems for traditional DualBore trees
  • Can be run on tubing or drill pipe with an umbilical
  • Flow through the tree to and from the annulus occurs in a series of connected bores and a 1" O.D. high-pressure line run with the workover control umbilical
  • The SingleBore tree and tree cap running and retrieving tool replace an expensive Lower Riser Package and an Emergency Disconnect Package
  • The SingleBore tree body incorporates integral production master, production swab valves and an annulus master valve

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