A purpose designed Subsea Clump Weight Recovery System was required to assist in the decommissioning of the Balnaves Riser Turret Mooring. This technically challenging project was delivered to suit the tight offshore removal schedule.
Linch-pin developed an innovative, simple, and effective concept for an Emergency Pipeline Repair System (EPRS) for Qatar Petroleum to be used in the Arabian Gulf. The design had tight restrictions on frame weights and sizes, whilst also being required to repair pipeline sizes ranging from 12” through to 60” in diameter.
Linch-pin developed the decommissioning concept for the removal of the NCC Buoy. The concept involved the use of Linch-pin’s proprietary Subsea Chain Puller to remove tension from the buoy tethers prior to cutting them.
Linch-pin assists Ampelmann and offers its structural and installation engineering expertise in providing practical methods of supporting and seafastening the gangway system to vessel decks and providing stair tower access for personnel staging areas.
Following the Montara well blowout, concerns were raised about the potential for accelerated internal corrosion of the carbon steel risers. As part of the Montara WHD Platform Riser Inspection Campaign, Linch-pin was engaged by PTTEP AA to design pig and Ultrasonic Testing (UT) tool launchers and receivers to assist with the riser inspections.