Australia-based independent AWE Limited said Monday that flow tests at its Senecio-3 well in Western Australia’s onshore Perth Basin confirmed the commercial potential of its Waitsia gas field.
The company perforated a 32 foot interval at Senecio-3 without stimulation on Sunday focusing on the well’s primary target in the upper Kingia Sandstone at permits L1/L2.
A preliminary maximum gas flow rate of 18.5 million standard cubic feet per day was measured on a 48/64 inch choke.
At the end of an 18 hour clean up period, the well flowed gas at an average rate of 12.3 mmscf/d with a well head pressure of 1,980 psig over a five hour period on a 36/64 inch choke.
The gas composition was predominantly methane with only minor levels of carbon dioxide present, AWE said.
The well will be shut in for a brief pressure build-up survey prior to a series of flow tests at various choke settings, rates and well head pressures over the next week.
A full testing program is expected to be complete by mid-April.
The Waitsia gas field holds estimated gross 2C contingent resource of 290 billion cubic feet of gas with significant upside of up to 1.17 trillion cubic feet of gas.
AWE is planning to drill two additional appraisal wells on the Waitsia field this year to better define its potential.
“The initial flow test results confirm the Kingia Sandstone is a conventional gas reservoir capable of producing commercial flow rates of gas. It has also confirmed the potential for an exciting new gas play in the North Perth Basin,” AWE managing director Bruce Clement said.
AWE holds a 50 percent operating stake in the L1/L2 licenses.
Australia-based Origin Energy Resources holds a 50 percent stake in the licenses.