AWE Limited has advised that as at 06:00 hours AWST today the Irwin-1 exploration well, located in the onshore Perth Basin, Western Australia, had completed a drill bit change and was at a measured depth of 3,850m and drilling ahead in an 8 1/2 inch hole to the planned total depth of 4,064m.
The Irwin Prospect straddles the EP320 (AWE 33%) and L1 (AWE 50%, Operator) boundary and the Irwin-1 drilling program is being operated by AWE under an agency agreement with joint venture partner, Origin Energy. The Irwin-1 exploration well was spudded on 25 March 2015. The well is being drilled vertically to a planned total depth of 4,064m and is forecast to take a total of approx. seven weeks to complete.
Irwin-1 is designed to test the gas potential to the east of the Senecio and Waitsia gas fields and has multiple reservoir objectives in the Dongara and Wagina tight sandstone formations, the Carynginia Shale and Irwin River Coal Measures, and the deeper Kingia and High Cliff Sandstones. AWE may undertake a flow test of the Irwin-1 well to better establish the commercial potential of the reservoir(s). The approved work program for the Irwin-1 exploration well does not include hydraulic fracture stimulation.