THE FINAL weld on the main gas transmission pipeline of the Australia Pacific LNG project has been completed, one of three key milestones to be wrapped up in recent weeks.

APLNG chief executive Page Maxson said the high pressure pipeline was not being progressively placed into service.

“The pipeline is a critical piece of infrastructure linking the gas fields with the LNG facility,” he said.

“That we have now completed 530km of pipeline construction, with a relentless focus on personal and process safety, is a significant milestone,” Mr Maxson said.

The news follows commencement of hydrotesting of LNG tanks on Curtis Island – a process which requires filling the tanks with water to test their ability to hold its weight.

“Testing the integrity, quality and stability of the LNG storage tanks is a crucial part of ensuring they are ready to receive the first LNG, and we are pleased that our tank construction has reached this point,” Mr Maxson said.

Furthermore, the gas from the recently commissioned Condabri Central gas processing facility is now being delivered into the gas network together with gas from Australia Pacific LNG’s existing Spring Gully and Talinga facilities.

Condabri Central is the first of seven new gas processing facilities being constructed.

These construction milestones play a critical role in the delivery of first LNG exports in mid 2015, with gas from Condabri Central delivered to Curtis Island through the pipeline system where it will be liquefied and shipped to Asia.

These three milestones mark very definitive steps in the progress we are making in the gas fields, on the pipeline and at the LNG facility on Curtis Island,” Mr Maxson said.

APLNG is a joint venture between Origin Energy and ConocoPhillips, both with 37.5 per cent stakes, and China’s Sinopec, with 25%.