| 摘要 |
Methods and systems relating to subsea wellhead orientation are disclosed. In one embodiment, a method comprises providing a wellhead with an orientation key on an outer surface and an opening on an inner surface; providing the Christmas tree attached to a guide tube having an orientation profile configured to engage the orientation key; providing a lockdown sleeve with a mating profile on an inner surface, and a protuberance on an outer surface configured to engage the opening on the inner surface of the wellhead; providing the tubing hanger with a mating profile on an outer surface configured to engage the mating profile of the lockdown sleeve; moving the lockdown sleeve into engagement with the wellhead; moving the tubing hanger into engagement with the lockdown sleeve; and moving the Christmas tree into engagement with the wellhead and the tubing hanger.
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