Mineral Resources Limited (ASX: MIN) has provided an update on the Lockyer-5 conventional gas development well (L-5), located in the onshore Perth Basin in WA.
Following appraisal of the L-5 well, a sidetrack was drilled to a gas development well location that reached a total depth of 4,574m measured depth relative to the rotary table (MDRT). The Kingia Sandstone objective was successfully intersected at 4,424m MDRT.
Petrophysical analysis of Lockyer-5 Sidetrack-1 (ST-1) wireline logs has yielded exceptional results, revealing 27m of net gas pay with an average porosity of 18%. This is the highest quality reservoir encountered in all wells that have intersected the Kingia Sandstone across the onshore Perth Basin.
Preparations are now underway for a well test in early April 2024 to evaluate gas flow rates and composition.
L-5 is located approximately 1.8 kilometres northwest of the North Erregulla Deep-1 (NED-1) discovery. It is the fourth of 10 development wells planned for MinRes’ Lockyer Conventional Gas Project in the onshore Perth Basin.
The Lockyer Deep-1 discovery in September 2021 revealed 32m of net pay with an average porosity of 15%, followed by NED-1 in June 2023 with 33m of net pay at 16% average porosity and Lockyer-3 in July 2023 with 11m of net pay at 13% average porosity.
Following the completion of operations at L-5, the drilling rig was relocated to North Erregulla-2 (NE-2) which commenced on 20 March and is expected to reach a total depth of 3,492m MDRT in mid-April.
NE-2 is an appraisal well to test the quality and deliverability of the 47m net oil pay in the Dongara-Wagina Sandstone encountered in the NED-1 well.
Initial laboratory analysis of the oil recovered in NED-1 has provided promising indicators of high-quality oil, with initial wireline log analysis indicating an average porosity of 13%. The NE-2 pay zone will be fully cored, followed by a full suite of wireline testing and a flow test to further define and unlock the considerable oil potential in the region.
