Activity details

Organisation	Chevron Australia Pty Ltd
Project	Wheatstone
Activity types	Operation of a facility for the recovery or processing of petroleum Operation of a petroleum pipeline
In-force EP	5709
Submission date	17 August, 2021
Outcome	Accepted
Acceptance date	01 August, 2022
Locations	North West
Start date	20 June, 2017
Stop date	Pending titleholder notification
Lifecycle Classification	Operation & Production

Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact

Activity Description

The Wheatstone Liquefied Natural Gas (LNG) Project (the Project) produces hydrocarbon fluids from offshore fields, transports these fluids through flowlines to the Wheatstone platform (the platform) for initial processing, and then transports gas and condensate through the trunkline to the onshore gas plant for further processing. Resultant LNG and condensate are exported by vessels to the international market, and gas is available to the domestic market via a tie-in with the existing Dampier to Bunbury Natural Gas Pipeline. The activities detailed in this EP will be conducted in Commonwealth Waters, Western Australia (WA) State Waters, and on the WA mainland, thus spanning more than one regulatory jurisdiction. Only those activities that fall within a given jurisdiction are submitted to the respective regulator to meet relevant regulations, as follows: • the National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) for acceptance under the Commonwealth Offshore Petroleum and Greenhouse Gas Storage (Environment) Regulations 2009 (OPGGS(E)R) • the WA Department of Mines, Industry Regulation and Safety (DMIRS) for approval under the Petroleum (Submerged Lands) (Environment) Regulations (PSLER) 2012 (WA), and the Petroleum Pipelines (Environment) Regulations (PPER) 2012 (WA). Location Fluid production will be from wells located in the Wheatstone (WA-46-L, WA-47-L, and WA-48-L) and Iago (WA-46-L and WA-48-L) fields located off the Pilbara coast of WA. Additionally, the platform (WA-3-IL) will receive fluids from the Julimar Development Project (JDP) WA-49-L, located south west of WA-48-L, described in the Woodside Energy Julimar Pty Ltd (Woodside) EP. The offshore section of the trunkline includes a Commonwealth Waters section from the platform to the State Waters boundary (WA-25-PL), and a State Waters section (TPL/25) to the shore crossing through a microtunnel. The trunkline exits the microtunnel and remains buried onshore for approximately 1 km before emerging above ground just before the onshore endpoint located upstream of the gas plant. The trunkline crosses the shore at Ashburton North, which is approximately 12 km south-west of Onslow on the Pilbara Coast, within the Shire of Ashburton, W.A. Scope This EP addresses Project Start-up and Operations activities associated with the Wheatstone and Iago hydrocarbon system and platform, which comprises the Wheatstone and Iago field wells and associated subsea infrastructure, the platform, and the trunkline from platform to the onshore end point.

Location map (click to enlarge)

Accepted EP Documents

EP Document	A853704 (34.5 MB)
OPEP Document	A798394 (2.47 MB)
OSMP Document	A798393 (9.99 MB)

Related EP assessments

5709 (Click to view)

3617 (Click to view)

3141 (Click to view)