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Engineer Subsea 7 goes ahead with Wheatstone field contract

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LNG Journal editor

Norwegian-listed engineering company Subsea 7 SA said it would be going ahead with a substantial contract for the second phase of the Julimar-Brunello fields development project linked to the supply of feed-gas to the Wheatstone LNG export plant in Western Australia operated by US major Chevron Corp.

The contract was awarded to Subsea 7 earlier in 2019 subject to the final investment decision of the Julimar-Brunello gas field joint venture participants, Woodside Petroleum of Australia and Kuwait Foreign Petroleum Exploration Co. The FID has now been taken.

Partners

Woodside and its Kuwaiti partner each own 13 percent of the Wheatstone project which came on stream in 2017 and comprises two Trains with output of almost 9 million tonnes per annum.

Chevron retains over 64 percent of the venture while two foundation customers, JERA Co. Inc and Kyushu Electric Power of Japan, hold smaller stakes.

The onshore Wheatstone liquefaction plant is located 12 kilometres west of the town of Onslow in Western Australia’s Pilbara region.

The Julimar gas field is located about 200 kilometres offshore the northwestern coast of Australia.

The concept definition for phase two of the Julimar-Brunello project will tie-back the Julimar field to the existing Brunello subsea infrastructure.

Across the 25-year life of Wheatstone two flowlines of around 22.5km long are needed to connect the Julimar and Brunello fields at production and crossover manifolds back to the Wheatstone offshore platform.

Subsea 7, whose corporate headquarters are in Luxembourg, will now supply and construct the second of the two flowlines and other infrastructure.

“The offshore activities will be performed in 2021 using Subsea 7’s reel-lay and heavy construction vessels,” it added.

Andy Woolgar, Subsea 7 Vice President for Australia and New Zealand, said that the contract with Woodside reflected what can be achieved with strong collaboration and early engagement.

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