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Activity - Greater East Spar Installation and Commissioning

Activity details
Organisation Santos WA Southwest Pty Limited
Project Varanus Island Hub
Activity types Significant modification of a petroleum pipeline
In-force EP 3993
Submission date 13 April, 2017
Outcome Accepted
Acceptance date 29 June, 2017
Locations North West
Start date 23 August, 2017
Stop date 24 September, 2017
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Libby Howitt
Phone: +61 8 6218 7100

Activity Description

Quadrant  Energy operates  the  Varanus  Island  oil  and  gas  production  and infrastructure facilities located offshore Dampier. Oil and gas is supplied to Varanus Island from a number of offshore petroleum reservoirs via several subsea pipelines.
The Halyard gas field is located approximately 65 km west of Varanus Island, and currently comprises the Halyard-1 well connected via a flowline to the East Spar subsea infrastructure, from where gas is transported 65 km via pipeline to the East Spar gas plant on Varanus Island.
Quadrant is proposing to install additional infrastructure to connect another well, Spar-2, to the existing Halyard subsea facilities. The Spar-2 well is located approximately 1.7 km west-southwest of the existing Halyard-1 well, and was completed in December 2010 but was not connected. To complete the connection, Greater East Spar infrastructure must be installed.  Installation activities are expected to commence in Quarter 3, 2017, and run for up to 60 days. 

Location map (click to enlarge)
Location map - Activity: Greater East Spar Installation and Commissioning  (refer to description)

EP Documents

EP Document A680659 (2.25 MB)
Decision notifications A558342 (153 KB)
A681219 (9.46 MB)

Related EP assessments

3993 (Click to view)