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  • Santos GNLG: Pipeline closer to completion after journey beneath Gladstone Harbour
    édité le 14/05/2014 - Plus de news de "Santos" - Voir la fiche entreprise de "Santos"

Santos GNLG: Pipeline closer to completion after journey beneath Gladstone Harbour
Santos GLNG has achieved another milestone, with the final section of its gas transmission pipeline
successfully pushed through a tunnel beneath the Gladstone Harbour to the LNG plant on Curtis

The 120 pipeline segments, each measuring 36 metres in length, were welded and pushed gradually
through the 4.3-kilometre tunnel over the past month using a large hydraulic jack. The tunnel was
filled with seawater to buoy the 42-inch diameter pipeline as it was pushed through.

Santos Vice President Downstream GLNG Rod Duke said the delivery of the first under-sea crossing
for Queensland’s CSG-to-LNG industry “brings our pipeline to its final stages of completion and
demonstrates our ability to deliver world-class projects and operations”.

“This year is about delivering milestones across Santos GLNG, and we’re particularly proud of this
achievement given the innovation and expertise required to achieve a marine crossing like this one,”
Mr Duke said.

“Our under-sea tunnel has allowed us to cross The Narrows without disturbing the local marine
environment and with minimal impact to the surrounding coastal environments.

“In the coming weeks the marine crossing pipe will be connected to the rest of Santos GLNG’s 420-
kilometre pipeline already buried on the mainland and Curtis Island.”

Pipeline pre-commissioning works are well underway, with clean and gauge activities nearing
completion and about half of the required hydrotesting completed. The pipeline route will be fully
rehabilitated with initial reinstatement works now more than 90 percent complete.

The gas transmission pipeline is being built by Santos GLNG’s contractor Saipem Australia, while the
tunnel was constructed by subcontractor Thiess.

The 3.45-metre internal diameter under-sea tunnel was a feat in itself, running approximately eight
metres below the sea bed and constructed using a 100-metre long, 277-tonne tunnel boring machine.

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

About Santos

An Australian energy pioneer since 1954, Santos is a leading oil and gas producer,supplying Australian and Asian customers.

See the site of GNLG project

Origine : Communiqué Santos

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