Alevro, a joint venture (JV) between Australian engineering services provider Monadelphous and Italian heavy lift firm Fagioli, used an Enerpac EVO system at the Pluto LNG onshore facility near Karratha in Western Australia.
Alevro transported the LNG compressors from the quayside using SPMTs and, using a jack-down process, lowered the compressors onto the foundations with the Enerpac EVO system.
Each compressor measureed approximately 63 m x 30 m x 30 m and weighed 3,600 tonnes, so the site was prepared with a ground level concrete slab with different anchor points.
A total of 44 Enerpac climbing jacks, each measuring 1.2 m in height, were carefully positioned, with the stacks topped by 0.5 m of climbing jack frames, each holding Enerpac 250T jacks. The entire jack-down process used two Enerpac EVO power packs which each operated 24 jacks on 12 hydraulic lines.
“Testing the jack-down system was crucial in building confidence for the next stage of the compressor installation, where the Enerpac cylinders would bear the full weight of the compressor module,” said Massimiliano Vettrici, operations manager at Alevro.
“Additionally, we paid particular attention to module alignment while on SPMTs, as we did not anticipate any movement during the lowering phase, given the numerous jacking points,” Vettrici added.
Pluto Train 2 will process gas from the Scarborough natural gas field in the Carnarvon Basin, around 375 km off the coast of Western Australia. Once completed, Pluto Train 2 will have an LNG capacity of approximately 5 million tonnes per annum.
Earlier this month, HLPFI reported that the I-494 Minnesota river bridge had been lifted using an Enerpac EVO system.
