HorizontalBore™ SUBSEA TREE
Dril-Quip’s HorizontalBore™ Tree is a modular design subsea production component that accommodates numerous completion and configuration possibilities.
The Dril-Quip HorizontalBore Tree is used for subsea wells that may require multiple work-over during the life of the well, for wells that have complex downhole electric configurations, and for wells that may require downhole submersible pumps. The horizontal tree offers the flexibility of running and pulling the tubing hanger without disturbing the tree-to-wellhead connection, the flowline connection or the subsea control module to the tree. Dril-Quip HorizontalBore Trees can be equipped with direct hydraulic, electro-hydraulic or fiber optic based multiplex control systems. Vertical or horizontal flowline connections are available, in either hydraulic or mechanical versions. The Dril-Quip HorizontalBore tree is available in 5-1/2” and 7” production tubing sizes and incorporates a 2-1/16” size annulus access.
FEATURES
（1）Flexible compact modular tree design accommodates a variety of completion configurations and third party equipment
（2）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
（3）Metal-to-metal annulus sealing technology for reliable pressure isolation
（4）Passive tubing hanger orientation arrangement eliminates BOP orientation pins
（5）Standard API/ISO ROV interfaces ensure installation and maintenance accessibility
（6）Accommodates numerous downhole lines, including SCSSV, chemical injection, smart well, DHPT, and ESP; offering maximum completion flexibility
STANDARD EQUIPMENT INCLUDES
（1）Dril-Quip’s field proven DH Gate Valves and latest generation DA Valve Actuators
（2）Dril-Quip’s latest generation DXe hydraulic tree connector
STANDARD EQUIPMENT SPECIFICATIONS
Engineered for up to 10,000 psi working pressure
Exceeds ISO/API 6A temperature class (0 to 300°F)
-46°F temperature rated downstream of choke
Footprint of less than 5m x 5m (16.4’x16.4’)
Material class HH for production and EE+ for annulus
Manufactured and tested per ISO/API 17D
Penetrators
Dril-Quip’s HorizontalBore™ Tree penetrators utilize an industry standard design that offers dependable long service life. Dril-Quip’s HorizontalBore Tree can accommodate nine hydraulic plus two electrical down hole functions.
Annulus and Production Bore Seals
Dril-Quip’s tubing hanger annulus and production bore seals are metal-to-metal end cap seals with elastomeric backup design. The seals feature high level extrusion resistance necessary for high pressure/high temperature containment. The seal is weight set and pressure energized.
Valve Options
Dril-Quip’s field-proven DH (high performance) gate valve and DA hydraulic actuators are engineered for reliable service in shallow or deepwater applications. They are manufactured from high-grade materials and precision machined for dimensional accuracy and consistent high quality. Dril-Quip gate valves have been equipped with fail-safe close actuators and qualified to 10,000 feet per API 17D, 2nd Edition and API 6A, 20th Edition.
Horizontal Bore Tree Connector Reliability
The Horizontal Tree connector is a hydraulic connector with mechanical override. The connector has a secondary mechanical lockdown feature to ensure connection preload is maintained. The tree connector can be provided with a variety of industry standard locking profiles. A secondary unlock piston provides 88% more unlocking force than locking force and is standard.
Interfaces
Dril-Quip’s HorizontalBore Tree can be configured to accommodate all industry standard subsea wellhead system locking profiles. Multiple interface options are available when integrating components from separate manufacturers. The tree is compatible and available with a variety of manufacturers’ chokes for production and annulus flow. The tree can accomodate all industry standard subsea control systems.
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