Onesubsea IP UK Limited

Guy Mosscrop

David R June

Kashmir Singh Johal

David Russell June

A system includes a subsea tree comprising an area susceptible to formation of hydrates when a shut-down of a well occurs. The system also includes a trace heating blanket comprising an exterior layer and an interior layer comprising electric coils, wherein the trace heating blanket is disposed about the area of the subsea tree susceptible to formation of hydrates.

Systems and methods for preventing hydrate formation in underwater equipment

A technique is provided for properly orienting a subsea tree with respect to a tubing hanger landed in a subsea wellhead. An alignment ring is rotationally positioned on the subsea wellhead such that a coarse alignment feature of the alignment ring is at a desired angular orientation with respect to a fine alignment feature on the tubing hanger. The alignment ring is then secured to the subsea wellhead. Subsequently, a subsea tree may be rotationally oriented with respect to the tubing hanger as the subsea tree is landed on the subsea wellhead. As the subsea tree engages the coarse alignment feature, the coarse alignment feature guides the subsea tree into engagement with the fine alignment feature of the tubing hanger to ensure proper rotational orientation as landing of the subsea tree is completed.

Tubing hanger orientation system and techniques

A production assembly includes a tree body, in which the tree body includes a main production bore formed about an axis and a wing bore extending through the tree body from the main production bore. The tree body may further include a wing valve in fluid communication with the wing bore to control the flow of fluid through the wing bore, in which at least a portion of the wing bore is angled from perpendicular with respect to the axis of the main production bore.

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Cypress, TX, United States of America

Guy Mosscrop