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Activity - West Tryal Rocks 2 Well Abandonment

Activity details
Organisation Chevron Australia Pty Ltd
Activity types Any other petroleum-related activity
In-force EP 5562
Submission date 25 March, 2021
Outcome Accepted
Acceptance date 13 April, 2022
Locations North West
Start date Pending titleholder notification
Stop date Pending titleholder notification
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Micha Stoker
Phone: 08 9216 4000

Activity Description
West Australian Petroleum (WAPET) discovered the first of the Greater Gorgon gas fields, West Tryal Rocks, northwest of Barrow Island in 1973. The West Tryal Rocks field is located approximately 55km northwest of Barrow Island and approximately 145km north of Onslow.

The West Tryal Rocks 2 (WTR-2) well was drilled and abandoned by WAPET within exploration permit WA-25-P in 1974. Following abandonment, the wellhead was left in situ. In 1991, the relevant graticular blocks were excised from WA-25-P and became the current retention lease WA-5-R.

In 2000, Chevron Australia Pty Ltd (CAPL) became the operator of the oil and gas exploration and production assets previously managed by WAPET, including retention lease WA-5-R.

This Environment Plan covers the impacts and risks associated with the WTR-2 wellhead remaining in situ.
Location map (click to enlarge)
Location map - Activity: West Tryal Rocks 2 Well Abandonment  (refer to description)

Accepted EP Documents

EP Document A817185 (7.69 MB)

Related EP assessments

5562 (Click to view)