Gold Hydrogen (ASX: GHY) has taken a key step in realising the commercial potential of its Ramsay gas development in South Australia with drilling success at the Ramsay 4 well.
Backed by motoring giants Toyota Motor and Mitsubishi, as well as chemical product specialist ENEOS, the company is now preparing to undertake studies to confirm the size of the hydrogen and helium discovery and potential field development plans.
Drilled as a follow-up to the successful Ramsay 1, 2 and 3 wells, Ramsay 4 showed excellent fracture connectivity and confirmed the potential of future successful flow testing.
Drilled 500 metres from Ramsay 2 and to a depth of 855m, Ramsay 4 penetrated a range of highly porous and permeable zones within the Parara, Kulpara, and Winulta formations.
Notably, the new well hit similar zones to those where air- and nitrogen-corrected helium concentrations of up to 36.9% were seen in an extended flow test at Ramsay 1 in August 2024.
Formation Thickness Confirmed
Wireline log testing of the deeper Kulpara formation intersected in the well indicated a combined gross formation thickness of 180m, which correlates to the Ramsay 1 and 2 measurements.
Gold Hydrogen is currently planning the completion of Ramsay 4 with the intallation of an electronic submersible pump and production testing with a temporary surface production facility that will have a gas compressor integrated as well.
This final stage will assess the commercial size of the field, as well as the natural hydrogen and helium flow potential of all prospective formations intersected in the Ramsay project area to date.
The program is currently scheduled to take place in late Q1 2026 following the completion of the current drilling campaign and the demobilisation of the rig currently in place.
Extended Hydrogen-Helium Systems
Managing director Neil McDonald said the results demonstrated further extensions of the project’s natural hydrogen and helium systems.
“This information will be instrumental in decisions around a potential pilot project development and Ramsay commercialisation strategy,” he said.
“We look forward to our upcoming testing program starting in Q1 2026, where we plan to determine flow rate potential—a significant milestone in preparation for future Ramsay field development plans.”
Since drilling the Ramsay 1 discovery in October 2023, Gold Hydrogen has helped Australia become a front-runner in the progression of a global natural hydrogen sector.
