Wellhead Alignment
TMT Wellhead Alignment Frame (WHAF)
The TMT Wellhead Alignment Frame (WHAF) is designed to be attached to subsea infrastructure on the rig and then lowered through the moonpool.
Features
Bullseye type and resolution flexibility
Full galvanic isolation from wellhead
Guide base not required
Robust
ROV retrievable
Optional transponder buckets
Can be customized to suit
Once subsea, the ROV is able to fly up and press against the bumper unit; from there, the ROV can give a heading to determine the orientation of structure. Once the structure has been landed, the ROV uses the Bullseye to check that the angle of the structure is within acceptable limits.
An optional ROV docking probe interface compliant with ISO 13628-8:2002(E) is available.
Datasheet
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