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AWE's Waitsia Stage 1A well performance exceeds expectations

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Oilfield Technology,

AWE Limited, Operator of the Waitsia gas project in Western Australia production licence L1/L2 has reported that well performance from Stage 1A of the Waitsia gas project has exceeded pre-production expectations over the first three months of operations.

Stage 1A of the Waitsia gas project commenced production in August 2016 from the Senecio-3 discovery well and the Waitsia-1 appraisal well, connected to the Xyris Production Facility (XPF) and then into the Parmelia Pipeline.

The Senecio-3 well, currently producing from the Kingia Formation, is performing better than preproduction expectations, which were based on well test results recorded in March 2015. AWE has observed an improvement in well productivity that suggests the well has cleaned up and is connected to a significant gas volume in high quality reservoir. The estimated connected volume has increased substantially towards the higher end of pre-production estimates.

The Waitsia-1 well is currently flowing from the High Cliff Sandstone (HCSS) and has exceeded the upper end of pre-production estimates. Waitsia-1 HCSS demonstrates excellent productivity and is connected to a significant gas volume in high quality reservoir.

An independent review of Stage 1A well performance by RISC Advisory Pty Ltd has determined that preliminary results from the two zones under test at Senecio-3 (Kingia Formation) and Waitsia-1 (HCSS) indicate an accessed gas in place volume of approximately 100 billion ft3 or greater. The Waitsia- 1 Kingia Formation, which has not yet been tested, is planned to be connected and flowed in calendar year 2017.

The preliminary results also suggest the 2P connected volumes from Senecio-3 (Kingia) and Waitsia-1 (HCSS) are consistent on a per well basis with RISC’s overall assessment of Waitsia gross 2P Reserves of 460 billion ft3 of gas (announced 20 September 2016), which is 34% higher than AWE’s current gross 2P Reserves estimate for Waitsia of 344 Bcf of gas.

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