Abstract: This invention pertains to a re-usable offshore platform that is secured in place by skirt piles. The platform is constructed with skirt pile sleeves having an interior insert that is subsequently connected to the skirt pile. Prior to salvage, or re-use, the connection between the sleeve and the insert is cut thereby enabling the skirt pile to be removed which consequently allows the platform to be moved. Upon re-use or re-positioning, a new insert is installed and secured within the sleeve afterwhich new skirt piles are stabbed through the insert and embedded in the seafloor. Alternatively, should larger piles be needed at the new location, the larger piles can be stabbed through the sleeve itself thereby eliminating the need for new inserts.

Abstract: Rods, tubes, posts, and the like rod structures are driven into the ground by a device which is successively clamped to selected intermediate portions of the lengths of these rods to avoid heretofore involved awkwardness, instability, and unsafe driving conditions encountered when the top ends of long rods are engaged to force the rods into the ground. The device is easily and quickly clamped to the rod at a level close to the ground to be impacted by a driving tool such as a jackhammer at a convenient reachable height. When the device is driven to ground level, it is easily released from the rod and raised to a starting level and then reclamped for the next driving increment. The successive raising and driving steps are repeated until the rod is driven to a desired depth in the ground. When the top end of the rod approaches ground level, the device can be mounted over this end and impacted to drive the rod further into the ground.

Abstract: A method of creating a cold water conduit for use with an ocean thermal energy conversion plant by drilling and blasting at least one passageway completely through an underwater land formation.