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Activity - Pyrenees Expansion Installation - subsea completions, installation and tie-in

Activity details
Organisation BHP Billiton Petroleum (Australia) Pty Ltd
Activity types Construction and installation of a facility
In-force EP 3372
Submission date 23 October, 2015
Outcome Accepted
Acceptance date 06 January, 2016
Locations Pilbara
Start date 26 March, 2016
Stop date 16 April, 2016
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact

Bindi Gove
Corporate Affairs Manager
125 St Georges Terrace
+61 8 6321 6644

Activity Description

The Pyrenees field is located in approximately 200 m water depth, 45 km northwest of Exmouth, offshore Western Australia. The Pyrenees block comprises five fields; Stickle, Crosby, Tanglehead, Moondyne and Ravensworth. Stickle, Crosby, Tanglehead and Moondyne are located within exploration permit block WA-42L. Ravensworth is split between WA-42L and adjacent block WA-43L. BHP Billiton is the operator both blocks.
BHP Billiton Petroleum Pty Ltd plans to increase the production from the Pyrenees Development Area with workovers of existing wells, and the installation of additional production wells.
Tie back activities will include the installation of new manifolds, flowlines, umbilicals, flying leads and risers required to route production to the Pyrenees Venture FPSO and provide control to the wells. Control system software will be updated to account for the changes.
Where required, existing wells may be suspended, disconnected and isolated from the production system. Associated infrastructure will be disconnected and stored subsea. Residual well fluids will be displaced from the flowlines using either gas or water.
Timing for the installation activities is planned to occur, subject to drilling and completions campaigns and Construction Support Vessel availability, between 2016 and 2020.

Location map (click to enlarge)
Location map - Activity: Pyrenees Expansion Installation - subsea completions, installation and tie-in (refer to description)

EP Documents

EP Document A470092 (766 KB)
Decision notifications A680754 (Unknown size)

Related EP assessments

3372 (Click to view)