Abstract: A marine vessel launch apparatus utilizing cradle wedges that are released by explosive triggers. The cradle wedges are located above each skidway and directly support the vessel. The cradle wedge is shaped and sized to provide a direct means of connecting the cradle wedge to the vessel tieback/support. The tieback/support for the cradle wedge is rigidly attached to the skidway. The tieback/support and cradle wedge are held together with bolts and frangible nuts. Explosive charges are used on the frangible nuts to release the cradle wedges from the tieback/support and launch the vessel. Jacks provide positive horizontal pressure on the cradle wedges to break static friction between the cradle wedges and skidways to initiate vessel motion down the skidways and into the waterway.

Abstract: A conductor guide assembly for conductors of an offshore well platform having a jacket with an interior pile for extending from a sea bed to above a water level which is over the sea bed. In accordance with one inventive feature, a first guide mechanism comprising a plurality of vertically spaced supports which hold the tubular conduits within the interior pile is assembled in a plurality of sections wherein the upper support of each section is provided with removable bolt-on units for supporting the first guide mechanism as successive sections are jointed thereto. In accordance with another inventive feature, a second guide mechanism comprises a pair of circular plates positioned to rotate within a lower deck opening and which are connected together and define a plurality of passages for receiving the plurality of conductors that extend in the interior pile.

Abstract: A conductor guide assembly for conductors of an offshore well platform having a jacket with an interior pile for extending from a sea bed to above a water level which is over the sea bed. In accordance with one inventive feature, a first guide mechanism comprising a plurality of vertically spaced supports which hold the tubular conduits within the interior pile is assembled in a plurality of sections wherein the upper support of each section is provided with removable bolt-on units for supporting the first guide mechanism as successive sections are joined thereto. In accordance with another inventive feature, a second guide mechanism comprises a pair of circular plates positioned to rotate within a lower deck opening and which are connected together and define a plurality of passages for receiving the plurality of conductors that extend in the interior pile.