Strike Energy Ltd., Perth, confirmed the presence of a second significant column of high-quality gas in its 100%-owned South Erregulla-1 wildcat in permit EP503 in the onshore North Perth basin of Western Australia.
The accumulation, in Kingia sandstone, follows discovery of gas in the higher Wagina sandstone during drilling a month ago.
Strike said the top of the Kingia was encountered at 4,783 m with a high-quality subsection observed from 4,844 m and a gross Kingia gas column of 52 m thickness.
Mud logs, logging while drilling, and wireline logging tools were used to evaluate the Kingia with the collection of cuttings, rock chips, gas samples and 45 m of core, the company said.
Reservoir pressures of about 6,800 psi were measured along with an average reservoir porosity of 13.3% up to a high of 20.2%. No gas-water contact was encountered.
Strike said gas found in the Kingia and Wagina reservoirs combined will provide the company with the resource confidence necessary to proceed with and execute the proposed Project Haber urea plant engineering, offtake, and environmental approval work streams.
The South Erregulla Kingia gas discovery is interpreted to be updip of the West Erregulla gas field.
The well has been drilled to a final depth of 4,980 m with total depth in Holmwood shale.
A 7-in. liner has been run and cemented and perforated. A 5.5-in. tubing string will be installed along with a well head and Christmas tree prior to rig release.
Flow testing of both Wagina and Kingia sands will take place as soon as practicable following a test of the Walyering-5 appraisal well and mobilization of a workover rig to facilitate a test of the Wagina reservoir.
An assessment of recoverable reserves will be made following the production testing program.