After three and a half years of construction work, Santos GLNG has installed the final module on its two LNG processing trains, key components of its gas liquefaction plant on Curtis Island near Gladstone, Australia.

The last of the 111 modules used to build the two trains was installed earlier this month.

Train 1 comprises 82 modules, while Train 2 comprises 29, with an expected combined production of more than seven million tonnes of LNG each year.

Santos GLNG General Manager of Downstream Operations, Brenton Hawtin, said the construction of such a vital part of the plant – often referred to as ‘the big fridge’ – was a key milestone for the project.

“LNG trains are essentially big refrigerators that will take natural gas piped from our Queensland gas fields and condense it into liquid form so it can be safely and efficiently shipped,” Hawtin said. “Once we’re in full production, these massive pieces of infrastructure will together produce up to 7.8 million tonnes of liquefied natural gas each year.”

First gas

Final pipework and cabling on the trains has been taking place and commissioning of the plant is targeted by the end of the year, with first LNG anticipated in 2015.

Natural gas has been fed into the 420km gas transmission pipeline for the first time, via a primary compressor station in the Fairview field in southwest Queensland, completing work on the pipeline that began in 2012.

Once fully commissioned and in operation, the pipeline will transport up to 40 million cubic metres of natural gas each day from Santos GLNG’s gas fields to its gas liquefaction plant on Curtis Island, off Gladstone, where it will be cooled to minus 161ºC and shipped to customers as LNG.

Santos GLNG is a pioneering joint venture between Santos, PETRONAS, Total and KOGAS, to supply liquefied natural gas to global markets.