AWE Finds Gas Shows at Irwin-1 Exploration Well in Onshore Perth Basin

AWE Limited, reported Thursday that as at 06:00 hours (6.00am) AWST today the Irwin-1 exploration well, located in the onshore Perth Basin, Western Australia, was at a measured depth of 10,712 feet (3,265 meters) and drilling ahead in 8.5 inch hole to the planned total depth of 13,333 feet (4,064 meters).

The Irwin prospect straddles the EP320 (AWE 33 percent) and L1 (AWE 50 percent, Operator) boundary and the Irwin-1 drilling program is being operated by AWE under an agency agreement with joint venture partner, Origin Energy Limited.

The Irwin-1 well has intersected the top of the Dongara sandstone at 10,321 feet (3,146 meters), which is 134 feet (41 meters) to prognosis, and has so far penetrated 394 feet (120 meters) of the primary target formation, the Dongara/Wagina sandstones, with elevated gas shows observed.

The interval will be further evaluated with a wireline logging program after the deeper, secondary objectives have been drilled and the well has reached the planned total depth.

AWE Managing Director, Bruce Clement, said: "These early results are very promising and further highlight the exciting exploration potential of the Perth Basin."

“We are drilling ahead and plan to intersect the deeper, secondary formations before undertaking a wireline logging program and evaluating the reservoir potential of the Irwin prospect,” Clement said.

The Irwin-1 exploration well was spud March 25. The well is being drilled vertically to a planned total depth of 13,333 feet (4,064 meters) and is forecast to take a total of approximately seven weeks to complete.

Irwin-1 is designed to test the gas potential to the east of the Senecio and Waitsia gas fields and is targeting the Dongara and Wagina tight sandstone formations, the Carynginia Shale and Irwin River Coal Measures, as well as deeper conventional targets in the 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.

The Irwin-1 exploration well is located approximately 14.1 miles (22.7 kilometers) east of Dongara, Western Australia. Irwin-1 is the first well of a three well drilling program planned for the Perth Basin in 2015. It will be followed by the Waitsia-1 and Waitsia-2 appraisal wells on the newly discovered Waitsia Gas Field.

The Joint Venture partners in EP320 are:

  • AWE Limited (via subsidiaries) - 33.0 percent
  • Origin Energy Limited (via subsidiaries, Operator) - 67.0 percent

The Joint Venture partners in L1 are:

  • AWE Limited (via subsidiaries, Operator) - 50.0 percent
  • Origin Energy Limited (via subsidiaries) - 50.0 percent


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