Patent ID: 7645093

Claim:
A method of salvaging a decommissioned marine pipeline from a seabed, comprising the steps of: a) providing a vessel having a deck; b) rigging a lift line between the vessel and the pipeline; c) lifting the pipeline to position an end portion of the pipeline on the vessel deck, and wherein the pipeline extends between the vessel deck and the seabed; d) providing an articulating band saw, the articulating saw having an articulating band boom, the articulating boom comprising a hydraulically powered elevator along with at least two spaced apart rotating hydraulic actuators; e) cutting the pipeline on the vessel with the band saw that is hydraulically powered by a hydraulic motor and hydraulically movable with the articulating boom; and f) wherein the saw in steps “e” and “f” the band saw can be selectively positioned in a generally vertical plane in multiple positions that are vertically spaced apart and that are horizontally spaced apart.