Wheatstone Project

Project Overview

The Chevron-operated Wheatstone project is located at Ashburton north, 12km west of Onslow in WA. The Wheatstone project consists of two lNG trains with a combined capacity of 8.9 million tonnes per annum and a domestic gas plant.

Ertech has been awarded several contracts to perform civil construction works since 2013 including general site services, roadworks and earthworks.

Fast Facts

  • ClientChevron Australia
  • LocationOnslow, WA
  • Project duration2013-2018

Scope of works

Construction Village – Building, Utilities, Roadworks and Earthworks 
Road and earthworks services to the 3,800 bed camp including:

  • Kerbing
  • Supply and installation of signage and line marking
  • Supply and installation of bollards and metal guardrails
  • Installation of footpaths and pram ramps

Miscellaneous Site Services
Miscellaneous site works, project management and services coordination including:

  • Planning, executing, monitoring and controlling construction activities
  • Supply of plant and people resources to meet schedule
  • Management of subcontractors and procurement

Removal of Temporary Roads
Rehabilitation works to remove temporary roads including:

  • Safe excavation of approximately 240,000 cubic metres of general and granular fill materials, rock protection batter, base and sub-base materials
  • Transport of the excavated materials to designated locations in the vicinity and placing in segregated stockpiles
  • Removal and disposal off-site of geotextile, geo-web and HDPE culverts

General Services 3 Contract
Piping works, concrete works and miscellaneous works including:

Piping Works:

  • All permanent underground plant piping and cathodic protection
  • Marine outfall pipeline and main utility infrastructure pipeline corridor
  • Trains 1, 2 underground fire mains & common corridor flushing and drying
  • DOMGAS Metering Station / Domestic Gas Temporary Fire & Gas Detection System
  • Installation and turnover of underground fuel gas line

General Services 3 Contract

Concrete Works:

  • Storm water catch basins & culverts ; quarantine fencing footings; fire hydrant platforms; duct bank road crossings; and CCTV & light pole footings

Miscellaneous Works:

  • Installation and maintenance of temporary building, fencing for site boundaries and borrow pits; traffic signage, road side delineators and maintenance of road markings
  • Maintenance of generator, fire extinguisher and lighting plant equipment; all temporary substations and construction power network
  • General carpentry works – fabricating access stairways, tables, desks and shelving
  • General earthworks – civil support for electrical works and general road maintenance
  • Electrical works – installations for all facilities supporting site construction activities; LOTO isolations
  • Eradication of mesquite and vector rodent and insect control site wide
  • Site dewatering/clean up after cyclones/rain events
  • Sampling and testing of potable water site wide
  • Traffic management to assist with module movements
  • Warehouse construction
  • Water treatment plant upgrades

General Services 3 Contract

Operation and Maintenance Works:

  • Assets providing drinking water, construction water and wastewater treatment and operation
  • Desalination plants – capable of producing 6M L of fresh water per day
  • Remineralisation plants – capable of making 2M L of desalinated water to drinking water
  • Wastewater treatment plants – capable of treating 1.5M L of wastewater produced at construction camps
  • Wastewater discharge outfall pipeline – disposal of 8M L per day of brine and treated wastewater
  • Servicing and emergency maintenance of facilities that contain water chillers and ice machines
  • Supply of water and ice to concrete batch plant
  • Build, operate and maintain fuel farms

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