SUBMERSIBLE OFFSHORE POSITIONABLE FRAME

摘要

A frame comprises a base and at least four legs, wherein said base is positionable along said legs, so that said base may be moved from a first position wherein said base is above a water surface when supported by said legs, to a second position wherein said base is transportable on the deck of a surface vessel.

主权项

1. A jack-up structure for elevating a barge above water level which comprises:
a) a non-buoyant, barge-engaging base; b) a plurality of legs; c) a drive mechanism; said base engaged with said legs such that the base is movable, via the drive mechanism, vertically along said legs, from a first position, (which is selected from the group consisting of at water level and under water level) to a second position elevated above water level; said structure having means i) to removably engage the barge and the base at the first position ii) to secure barge on the base for movement to the second position; ii) to move base (carrying the barge) between the first position and the second position.