Dril-Quip’s HorizontalBore™ Subsea Tree offers a standard modular design allowing it the maximum flexibility to meet today’s demanding subsea applications.

Horizontal trees are typically used on subsea wells that may require multiple workovers, wells that have complex downhole configurations, and wells that may require downhole electrical submersible pumps (ESP). The Dril-Quip HorizontalBore™ tree accommodates the most downhole functions in the industry and can be configured to accommodate downhole ESP’s with minimal modification. Dril-Quip HorizontalBore trees can be equipped with direct hydraulic, electro-hydraulic or fiber-optic based multiplex control systems and accommodate a variety of optional, third party equipment. Vertical or horizontal flowline connections are available in either hydraulic or mechanical latching versions. The Dril-Quip HorizontalBore tree features a 14.5”drill-through bore, providing flexibility in drilling/completion operations and well design and can accommodate up to 7" production tubing sizes. The tree is fully qualified to API 17D 2nd Edition. The Dril-Quip HorizontalBore tree system offers maximum flexibility in configuration and application (deep or shallow water) from a vertically integrated manufacturer offering an economic solution with faster deliveries.

Dril-Quip HorizontalBore Subsea Tree

Standard Design and Maximum Flexibility - HorizontalBore™ Subsea Tree in a modular compact design.


  • Compact modular tree design accommodates a variety of completion configurations and third party equipment for maximum configuration possibilities
  • Large 14.5” ID vertical access drill-through is available for passage of drill-bits, submersible pumps, coil tubing strings, and Dril-Quip’s slimline casing hanger system for maximum drilling and completion possibilities
  • Metal-to-metal seal annulus sealing technology for the pressure isolation and equipment reliability
  • Passive tubing hanger orientation arrangement eliminate BOP orientation pins
  • Standard API/ISO ROV interfaces ensure installation and maintenance accessibility
  • Accommodates numerous downhole lines, including SCSSV, chemical injection, smart well, DHPT, and ESP; offering maximum completion flexibility

Standard Equipment Includes:

  • Dril-Quip’s field proven DH Gate Valves and latest generation DA Valve Actuators
  • Dril-Quip’s latest generation DXe hydraulic tree connector

Standard Equipment Includes:

  • Engineered for up to 10,000 psi working pressure
  • Exceeds ISO / API 6A temperature class (0-300 °F)
  • -46°F temperature rated downstream of choke
  • Footprint of less than 5m x 5m
  • Material class is HH for production and EE+ for annulus
  • Manufactured and tested per ISO/API 17D

HorizontalBore™ Subsea Tree Inquiry

Dril-Quip Worldwide