| 摘要 |
To produce hydrocarbons from an offshore production site, a well is drilled into hydrocarbon bearing strata from a non-permanent floating vessel and is then capped. Keying off a template positioned on the well, a base unit is attached to the seabed by driving foundation piles therethrough into the seabed. A tower is installed onto the base unit by attaching lower ends of flex legs of the tower with upper ends of respective foundation piles at locations above the seabed. A deck and topsides are installed to an upper end of the tower. The platform need not be fully compliant until the topsides are installed and operational.
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