Perth Basin gas discovery shows potential

The location of the recently drilled Irwin-1 well.

The location of the recently drilled Irwin-1 well.

By Courtney Pearson

May 7, 2015

WA explorer AWE has announced the discovery of 149 billion cubic feet of gas in the onshore Perth Basin, which the company believes has potential to become a domestic gas provider.

Drilled to a total depth of 4049m, the Irwin-1 exploration well hit a 32m gas column in the primary Dongara/Wagina target.

The Irwin structure contains an estimated 15bcf of gas; it was drilled 4.5km north of Warradong-1 in the Synaphea structure, which has estimated 2C resources of 134bcf.

AWE managing director Bruce Clement said the company was rapidly building a portfolio of conventional and tight gas resources in the north of the Perth Basin.

“Importantly, in addition to the significant new Dongara/Wagina discovery, Irwin-1 has intersected the Kingia formation 8km east of Senecio-3, confirming the lateral extension of the Kingia reservoir sands as well as providing valuable data on reservoir quality and gas/water contact,” he said.

AWE is preparing to drill the Waitsia-1 appraisal well on the Waitsia gas field later this month and is targeting early production from an initial phase of developments by mid-2016.

The latest discovery is part of the company’s onshore Perth Basin exploration program, which has seen more than 200 wells drilled.

AWE has a 33 per cent and 50 per cent stake in EP320 and L1 respectively, in  joint venture with Origin Energy.