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Subsea Wellhead Tree Product

A subsea wellhead and vertical christmas tree controlling and routing hydrocarbon flow from a deepwater well to the flowline. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Build & assembly graph

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Bill of materials

10 top-level lines · 71 rows shown · 110 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 High-Pressure Wellhead Housing 5 parts subsea-wellhead-housing 1× 1 7 assembly
1.1 High-Pressure Housing Body subsea-wellhead-hp-housing-body 1× 1 — part
1.2 Conductor Housing subsea-wellhead-conductor-housing 1× 1 — part
1.3 Casing Hanger subsea-wellhead-casing-hanger 2× 2 — part
1.4 Annulus Seal Assembly subsea-wellhead-seal-assembly 2× 2 — part
1.5 Fastener Set fastener-set 1× 1 — part
2 Subsea Christmas Tree 7 parts subsea-wellhead-tree-assembly 1× 1 46 assembly
2.1 Tree Frame & Body subsea-wellhead-tree-frame 1× 1 — part
2.2 Hydraulic Gate Valve 4 parts subsea-wellhead-gate-valve 1× 1 5 assembly
2.2.1 Valve Body subsea-wellhead-valve-body 1× 1 — part
2.2.2 Gate & Seat Set subsea-wellhead-gate-slab 1× 1 — part
2.2.3 Hydraulic Spring-Return Actuator 2 parts + deeper › subsea-wellhead-hydraulic-actuator 1× 1 2 assembly
2.2.4 O-Ring Set oring-set 1× 1 — part
2.3 Hydraulic Gate Valve 4 parts subsea-wellhead-gate-valve 1× 1 5 assembly
2.3.1 Valve Body subsea-wellhead-valve-body 1× 1 — part
2.3.2 Gate & Seat Set subsea-wellhead-gate-slab 1× 1 — part
2.3.3 Hydraulic Spring-Return Actuator 2 parts + deeper › subsea-wellhead-hydraulic-actuator 1× 1 2 assembly
2.3.4 O-Ring Set oring-set 1× 1 — part
2.4 Hydraulic Gate Valve 4 parts subsea-wellhead-gate-valve 1× 1 5 assembly
2.4.1 Valve Body subsea-wellhead-valve-body 1× 1 — part
2.4.2 Gate & Seat Set subsea-wellhead-gate-slab 1× 1 — part
2.4.3 Hydraulic Spring-Return Actuator 2 parts + deeper › subsea-wellhead-hydraulic-actuator 1× 1 2 assembly
2.4.4 O-Ring Set oring-set 1× 1 — part
2.5 Hydraulic Gate Valve 4 parts subsea-wellhead-gate-valve 1× 1 5 assembly
2.5.1 Valve Body subsea-wellhead-valve-body 1× 1 — part
2.5.2 Gate & Seat Set subsea-wellhead-gate-slab 1× 1 — part
2.5.3 Hydraulic Spring-Return Actuator 2 parts + deeper › subsea-wellhead-hydraulic-actuator 1× 1 2 assembly
2.5.4 O-Ring Set oring-set 1× 1 — part
2.6 Subsea Choke Valve 3 parts subsea-wellhead-choke-valve 1× 1 24 assembly
2.6.1 Choke Trim subsea-wellhead-choke-trim 1× 1 — part
2.6.2 Electric Choke Actuator 2 parts + deeper › subsea-wellhead-choke-actuator 1× 1 22 assembly
2.6.3 O-Ring Set oring-set 1× 1 — part
2.7 Internal Tree Cap subsea-wellhead-tree-cap 1× 1 — part
3 Production Tubing Hanger 3 parts subsea-wellhead-tubing-hanger 1× 1 3 assembly
3.1 Tubing Hanger Mandrel subsea-wellhead-tubing-hanger-body 1× 1 — part
3.2 Hanger Stab Plate subsea-wellhead-tubing-hanger-stab 1× 1 — part
3.3 O-Ring Set oring-set 1× 1 — part
4 Flow Control Module 2 parts subsea-wellhead-flow-control 1× 1 4 assembly
4.1 Multiphase Flow Meter 2 parts subsea-wellhead-flow-meter 1× 1 2 assembly
4.1.1 Venturi & Gamma Densitometer subsea-wellhead-flow-meter-gamma 1× 1 — part
4.1.2 Pressure Sensor pressure-sensor 1× 1 — part
4.2 Pressure Sensor pressure-sensor 2× 2 — part
5 Connector System 2 parts subsea-wellhead-connector-system 1× 1 9 assembly
5.1 Tree Connector 3 parts subsea-wellhead-tree-connector 1× 1 3 assembly
5.1.1 Collet Locking Ring subsea-wellhead-collet-fingers 1× 1 — part
5.1.2 Metal Hub Gasket subsea-wellhead-hub-gasket 1× 1 — part
5.1.3 Fastener Set fastener-set 1× 1 — part
5.2 Flowline Connector 3 parts subsea-wellhead-flowline-connector 2× 2 3 assembly
5.2.1 Collet Locking Ring subsea-wellhead-collet-fingers 1× 2 — part
5.2.2 Metal Hub Gasket subsea-wellhead-hub-gasket 1× 2 — part
5.2.3 O-Ring Set oring-set 1× 2 — part
6 Subsea Control Module 5 parts subsea-wellhead-scm 1× 1 23 assembly
6.1 Subsea Electronics Module 4 parts subsea-wellhead-sem 1× 1 6 assembly
6.1.1 Bare PCB pcb-bare 2× 2 — part
6.1.2 Microcontroller mcu 1× 1 — part
6.1.3 Wire Bundle wire-bundle 1× 1 — part
6.1.4 Connector connector 2× 2 — part
6.2 Solenoid Valve Bank 2 parts subsea-wellhead-solenoid-bank 1× 1 12 assembly
6.2.1 Pilot Solenoid Valve subsea-wellhead-solenoid-valve 6× 6 — part
6.2.2 Relay relay 6× 6 — part
6.3 Pressure Sensor pressure-sensor 2× 2 — part
6.4 Temperature Transmitter subsea-wellhead-temp-sensor 2× 2 — part
6.5 O-Ring Set oring-set 1× 1 — part
7 Hydraulic Accumulator Bank 2 parts subsea-wellhead-accumulator-bank 1× 1 5 assembly
7.1 Accumulator Bottle subsea-wellhead-accumulator-bottle 4× 4 — part
7.2 O-Ring Set oring-set 1× 1 — part
8 ROV Interface Panel 2 parts subsea-wellhead-rov-panel 1× 1 6 assembly
8.1 ROV Torque Bucket subsea-wellhead-rov-torque-bucket 4× 4 — part
8.2 ROV Hot-Stab Receptacle subsea-wellhead-rov-hot-stab 2× 2 — part
9 Sacrificial Anode subsea-wellhead-anode-set 6× 6 — part
10 Debris Cap subsea-wellhead-debris-cap 1× 1 — part

Sourcing — likely vendors

Companies that make this · indicative price $10k–$50M · MOQ & lead are typical
VendorHQSpecialtyMOQLead time
🇺🇸SLB
slb.com ↗ 		Houston, US Oilfield services & equipment made to order 24–48 wks
🇺🇸Halliburton
halliburton.com ↗ 		Houston, US Oilfield services made to order 24–48 wks
🇺🇸Baker Hughes
bakerhughes.com ↗ 		Houston, US Energy technology made to order 24–48 wks
🇺🇸NOV
nov.com ↗ 		Houston, US Drilling equipment made to order 24–48 wks
🇬🇧TechnipFMC
technipfmc.com ↗ 		London, GB Subsea & surface systems made to order 24–48 wks