Electrical Wellhead Feedthrough - Vertical Configuration0 pages

ELECTRICAL PRODUCTS

ELECTRICAL FEEDTHROUGH
SYSTEM
• Fully qualified

ELECTRICAL FEEDTHROUGH SYSTEM
FOR VERTICAL SUBSEA WELLHEAD COMPLETIONS

• Highly reliable electrical
connection for downhole gauges

Teledyne DGO provides a qualified, highly

synergistic pressure and temperature cycling.

• Glass-to-metal sealing technology

reliable Electrical Feedthrough System for

Refer to the specifications for more detail or

transmitting

contact DGO directly.

electrical

signal

and

power

from downhole instrumentation through the
wellhead. The system incorporates DGO’s

K E Y F E AT U R E S

glass-to-metal sealing technology in four

• Glass-to-metal sealed pressure barriers (4 places)

critical pressure barriers for maximum long

• Underwater, wet mateable connections

term reliability. It incorporates a wetmate

• Rig testable interface seals

connection between the tubing hanger and
running tool, enabling continuous monitoring
of instrumentation during run-in and initial
production. A permanent connection to the
Subsea Control Module is established through
the wetmate interface when the tree is landed
subsea.
The system is designed for long-term reliability
in

subsea

and

downhole

environments

containing aggressive production and packer
fluids, artificial lift, as well as sour well (H2S)
conditions.

Rigorous system, component

and material qualification tests have been
successfully completed on the design, verifying
its robust capability. This testing included

• Modular design to suit varying installation envelopes
• Standard Ø1/4” (6.35mm) DHG control line interface
- Simple, quick, testable DHG connector
rig terminations
• Dual-barrier philosophy throughout:
- Primary metal seals
- Secondary elastomer seals
- Redundant sealing
• API 6A, 16D & 17D compliant
- HH material class (Sour Service)
- Exceeds U temperature class
- Product specification level 3 – PSL 3
- Performance requirement level 2 – PR2
• NACE MR0175 compliant metallic elements

DGO