Abstract: A well head protector for a well which is located at the floor of an offshore body of water. The protector includes a plurality of discrete sub-assemblies which, for installation purposes, are initially transported to a drilling vessel and positioned above the well head. The sub-assemblies are sequentially lowered from the vessel deck and assembled above the water surface into a composite unit. The completed unit is guidably lowered by the vessel's drilling derrick to its position surrounding the well head. The deflecting elements are then lowered into place.

Abstract: Riser for an offshore marine platform which includes facilities to receive, treat, and/or store hydrocarbon fluid from a plurality of dispersed submerged wells. The riser includes means to accommodate a plurality of conduits between the platform deck and the floor of the body of water. As a rigid, or non-rigid conduit is pulled downwardly through the riser, it engages a deflecting shoe. The latter deflects the pulled conduit into a direction away from the platform and along the ocean floor, whereby it can readily engage a pipeline, or attach to one of the dispersed wells.