A range of spreader beams were required as part of planning for a contingent recovery campaign of 18" spools from the seabed for the Ichthys LNG Project. Linch-pin carried out the design of the spreader beams as well as an analysis for the operability of the vessel crane to perform the operation.
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 developed the decommissioning concept for the removal of the East Spar facilities. The existing Gravity Base Structure (GBS) was used to restrain the buoy during the removal operation.
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.
The TVI Retirement Project consisted of the removal of 9 wellhead platforms from the North West Shelf of Western Australia. Linch-pin carried out the detailed structural analysis and design for the removal of the platforms using a Heavy Lift Vessel.
As part of the Montara Recovery Project, Linch-pin assisted PTTEP during the Montara WHP Commissioning by providing marine, logistics and permitting support including.
Linch-pin was invited by PTTEP AA to assist them with developing and managing a contingency campaign to prepare for and, if necessary, replace the Montara WHP risers.
Linch-pin personnel were seconded into Intecsea to lead a multi-discipline team of Engineers and Draftspeople on the Ichthys URF project. As part of that work a concept design for a 3000t to 4000t Gas Export Riser Base (GERB) in 250 m of water was developed.
Intecsea engaged Linch-pin personnel to provide a conceptual design of Mid-Depth buoys for the Ichthys field in 250m of water. The MDBs were required to meet a functional specification for the operator INPEX.