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Wheatstone LNG Concrete, Civil and Finishing Civil Works. Onslow, Western Australia. Australia

Client
Bechtel
Sector
Oil & Gas
Services
Engineering ExpertiseInfrastructure Construction
Duration
2013 - Current

Wheatstone LNG Concrete, Civil and Finishing Civil Works. Onslow, Western Australia. Australia

Full project details

The Chevron-operated Wheatstone Project in Western Australia is one of Australia's largest resource development projects, consisting of two LNG trains with a combined capacity of 8.9 million tonnes per annum (MTPA), plus a 200 terajoule per day domestic gas plant.

Laing O'Rourke is providing engineering and construction services, delivering concrete, civil and finishing works to the project.

Getting the foundations right

Our team is delivering the structures and foundations required to support the large equipment and modules for the initial two-train LNG processing plant – an area known as Inside Battery Limits (ISBL).

We’re also delivering the foundations and structures over a 375ha footprint – known as Outside Battery Limits (OSBL) – to support tanks, large equipment and non-LNG processing modules such as utilities, power generation, water treatment, air and nitrogen systems, gas inlets, and gas flares.

Combined, a mammoth 126,400m2 of formwork, 220,000m3 of concrete and paving works and 794,000m3 of earthworks are being delivered on Wheatstone.

Last contractor on site

Laing O’Rourke was awarded an additional package to deliver the site’s Finishing Civil Works. This package includes the final fill, grading, surfacing, landscaping and rehabilitation across the entire site, making sure the site is ready for operations once the main civil and SMP contractors complete their works.

The Finishing Civil Works will see our team undertaking as built surveys, testing works, permanent plant and access roads with furniture and signage, area paving and foundation works, detailed earthworks, slope protection, drainage systems, bollard installation, repairs to existing facilities, and site-wide rehabilitation and landscaping.

Part of the works will be completed during the project’s construction stage, with the remainder to be delivered after the plant starts producing LNG. Our team is making important preparations, working closely with Bechtel and Chevron Australia, to ensure a smooth transition through this period.

Digital Engineering & Work Face Planning

Digital engineering has modelled the Issued for Construction (IFC) information to facilitate detailed work planning and briefing activities, identifying and resolving matters that would typically hold up works if they were identified on site. Engineers and supervisors use iPads on site to store and access work pack information, including the project’s digital model, digital method statements, up to date drawings, and specifications providing benefits to quality and productivity. 

Project facts

Foundations and structures are being delivered across the 375ha site, laying the groundworks for the project’s LNG processing modules, equipment and associated infrastructure

A mammoth 126,400m2 of formwork, 220,000m3 of concrete and paving works and 794,000m3 of earthworks are being delivered