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West Tryal Rocks 2 Well Abandonment

Activity type Any other petroleum-related activity
Activity subtypes
Lifecycle Classification Decommissioning
Submitted by Chevron Australia Pty Ltd
Submission date 25 March, 2021
Subtype New
Decision date 13 April, 2022
RMS ID 5562
Status Finalised
Outcome Accepted
Link to previously accepted EP
Micha Stoker
Phone: 08 9216 4000
Location map (click to enlarge)
Location map - Activity: West Tryal Rocks 2 Well Abandonment  (refer to 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.

Other Details
Locations North West
Commonwealth waters adjacent to Western Australia
Titles (or other instruments) WA-5-R
Current Documents (Finalised)
EP Document

Location map

Previous EP Documents (Under assessment)
EP Document

Location map