Strike Energy Ltd. confirmed gas at the SE2 appraisal well in the southwestern flank of South Erregulla gas field, Perth basin, Australia.
The well spudded on Aug. 22 with the primary objective to prove continuity of the field to the west and expand existing reserves prior to sanctioning development (OGJ Online, Sept. 20, 2023).
SE2 encountered the Kingia Sandstone at 4,843 m measured depth (MD) where a gross interval of 45 m was observed. Mud logs, logging while drilling and wireline logging tools were used to evaluate the Kingia sandstone and cuttings and pressures were collected.
The Kingia is made up of three sections of reservoir totaling 16 m of net pay with an average porosity of 11% and porosities up to 18%. Evaluation of the Kingia has used cutoffs consistent with Strike’s other successful Kingia wells across the Erregulla region in North Perth basin. Pressure and mobility data were collected, where reservoir pressures measured about 6,730 psia.
Strike will now run and set the 7-in. liner before cementing it in place, install the 5 1/2-in. tubing string along with the well head and christmas tree, before moving the rig to drill South Erregulla-3 (SE3).
Strike conducted wireline logging over the Jurassic Sandstone to appraise the potential CO2 storage capacity originally identified at SE1. The Jurassic sandstone unit intersected at SE2 was observed to be high quality with 76 m of net reservoir, with an average porosity of 18% and a maximum porosity of 24%. This supports the continuity of the potential storage reservoir to the southwest of SE1.
Strike Energy is operator at South Erregulla (100%).