SYSTEMS AND METHODS FOR REPOSITIONING AND REPAIRING A SECTION OF SUBSEA PIPE LOCATED ON A SEABED

摘要

Methods and systems are provided for repositioning and/or repairing a section of pipe within a pipeline or other equipment located on a seabed. System components are delivered by a surface vessel to the vicinity of the section of pipe or other equipment. Piles are partially driven into the seabed adjacent the section of pipe or other equipment such that each of the piles has an exposed pile top above the seabed. Pile tops are employed to support load-bearing manipulator assemblies each having a hydraulically controlled manipulator arm having a grapple capable of grasping and repositioning a section of pipe or other equipment. The manipulator assemblies are operated to reposition the pipe or other equipment in one embodiment, and to hold the pipe so that a repair clamp can be installed.