AWE has flow tested the second zone in the Waitsia-01 appraisal well, the Kingia formation, to further assess the conventional Waitsia gas discovery.
The testing program was designed to determine well deliverability from two conventional reservoir zones, as well as to collect gas samples for analysis of the gas composition. The first zone tested, the High Cliff Sandstone, flowed gas at a rate of 24.7 mmscf/d.
The second zone tested was the shallower Kingia formation, where AWE perforated a 15 meter interval (between 3,333 – 3,348 metres).
After an eight hour clean-up and well testing period, the well flowed gas at an average rate of 25.7 mmscf/d. The combined flow rate from the Kingia and High Cliff Sandstone formations exceeded 50 mmscf/d.
AWE Managing Director Bruce Clement said: “The excellent flow rates achieved will enable us to reduce the number of wells, and development costs, to achieve the targeted production rate of 100 mmscf/d for the full field development (of the Waitsia gas field) with the potential to increase the field production rate.
“Engineering and planning work for the first stage of development is well advanced, with early stage production of approximately 10 mmscf/d planned for mid-2016.”
The Waitsia-01 well is now shut in for a final pressure build-up survey and no further flow tests are planned for Waitsia-01.
The flow test was conducted in accordance with all regulatory approvals, including those from the Department of Fire and Emergency Services. In addition, a comprehensive Noise Management Plan was developed and implemented specifically for the flow test to further minimise potential disturbance to any local residents.
If you have any questions about the Waitsia-01 flow test, please contact us.