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Activity - Greater Enfield Tieback

Activity details
Organisation Woodside Energy Ltd
Project Greater Enfield Project (Australia Oil)
Activity types Construction and installation of a pipeline
In-force EP 3999
Submission date 21 April, 2017
Outcome Accepted
Acceptance date 28 September, 2017
Locations Pilbara
Start date 07 May, 2020
Stop date 20 July, 2020
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Kate McCallum
Phone: 08 9348 4000

Activity Description

Woodside is preparing an Environment Plan (EP) for the Greater Enfield Tieback which is located within petroleum permits titles WA-28-L and WA 59 L in Commonwealth waters, approximately 40 km north-west of the North West Cape near Exmouth in Western Australia.
The Greater Enfield Tieback is a joint venture between Woodside Energy Ltd (Operator, 60%) and Mitsui E&P Australia Pty Ltd (40%).
Drilling components of this scope are scheduled to start between Q4 2017 and end Q1 2018 and is expected to take up to two and a half years in total (including mobilisation, demobilisation and contingency).
Activities to be undertaken as part of the EP include drilling and completions and installation and pre-commissioning of associated subsea infrastructure.
The drilling campaign proposes to drill 12 wells in total within the Norton over Laverda,  Laverda and Cimatti oil accumulations. Six wells will be production wells and six will be water injection wells.
The subsea activities will involve installation of:• ~31 km rigid flowline and associated flexible riser connecting the wells via a multiphase pump (MPP) station to the existing Ngujima-Yin floating production storage and offloading (FPSO) facility;• A rigid flowline and flexible riser providing water injection for pressure support• A flexible gas lift flowline for artificial llift of Cimatti• Flexible production flowlines connecting the production wells to the pipeline; and• Umbilicals for power and control of the subsea infrastructure.

Location map (click to enlarge)
Location map - Activity: Greater Enfield Tieback  (refer to description)

EP Documents

EP Document A680660 (5.95 MB)
Decision notifications A572591 (711 KB)
A552910 (580 KB)

Related EP assessments

3999 (Click to view)