Australian gas explorer Kinetiko Energy announced that it successfully flowed gas from each of the three Korhaan Project wells, with significant gas flow rates achieved from Korhaan well 3.
All the Korhaan Project holes were percussion drilled to intersect carbonaceous sandstone and coal geology at depths that ranged from 130m to 450m. The wells are conventional and have unsophisticated completions as they are open holes that test the entire sub-Karoo section and have successfully flowed low-pressure gas.
The Korhaan well project is located within the Ermelo Coalfield in Mpumalanga. Gas exploration has focused on coal sandstones, coal and other carbonaceous structures at depths of 130m to 450m.
Kinetiko Executive Chairman, Adam Sierakowski, commented: “With the global energy and gas shortages at extreme levels, timing has never been better to start flowing gas from the recently completed 3 well Korhaan project.”
“With recent funding secured from South African and Australian investors, we are poised to accelerate our sizable exploration opportunities while commencing pilot gas production. The Company is focused over the next three months on achieving major milestones by securing our first domestic gas customers and booking maiden gas reserves certification.”
Have you read? Gas market and pipeline in South Africa for energy security
Korhaan 3 was tested during May 2022 and had a successful series of multiple flow and shut-in periods. Encouragingly, each period showed an increase in both flow rate and build-up pressure, proving its placement within a large compartment with rapid recharge functionality. The last flow period produced very high-quality gas (~98% methane, 2% nitrogen and zero CO2) at a sustained rate of over 92 Nm³/hour (83 mscfpd) gas flow with a shut-in pressure build-up of over 12 bar.
Korhaan 5 was tested first as it showed an excellent gassy sand profile. About 113m of pay intervals of above 2m in depth were measured, with a total gassy sand interface of 142m. It had good shut-in pressure build-up of over 12.5 bar, but only stabilised gas flow at 7 Nm³/hour. A technical review is underway and the Company is considering using the same drill pad to drill a 45° slant hole to try to tap into a larger compartment.
Korhaan 4 was the second well to be tested due to logs having shown a cumulative pay zone of 127m, but as a result of weather and equipment delays was shut in, having risen to a stable rate of 40 Nm³/hour and still climbing. The well has now been successfully opened and reentered and flow testing with multi-day and multi-cycle flow/shut periods is underway.
Have you read? Gas drilling project in Mpumalanga looks promising
© All content copyright 2017 - 2022 VUKA Group, unless specified otherwise.