Case Study
Ichthys LNG Project – Gas Export Pipeline - Shore Approach, Dredging, Pipe-Pull And Rock Installation Work
Ichthys LNG Project – Gas Export Pipeline - Shore Approach, Dredging, Pipe-Pull And Rock Installation Work
INTRODUCTION Owner INPEX Operations Australia Pty Ltd is developing LNG process facilities on Blaydin Point near Darwin, Northern Territory of Australia. Boskalis’ scope of work for this project included: DESIGN AND ENGINEERING Boskalis was responsible for the design of the trench slope based on the seabed and geophysical data available in each section. SHORE APPROACH CONSTRUCTION The shore approach construction consisted of 2,000 linear meters of intertidal dredging, 500 m of mangrove crossing by means of a cofferdam and 500 m of open trench through a mudflat. Following completion of the dredging activities, a shore pull of 3,000 linear meters using a 600 t linear winch was undertaken. Boskalis Subsea Services executed the removal of the buoyancy modules from the pipeline.