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Jackson-4 Flow Testing and Gas Sampling Analysis
Jackson-4 Flow Testing and Gas Sampling Analysis.
About this update from Helium One Global Limited
[{"type":"text","content":"\n\n1 April 2025\n\n \n \nHelium One Global Ltd\n(\"Helium One\" or \"the Company\")\nJackson-4 Flow Testing and Gas Sampling Analysis\n \nHelium One Global (AIM: HE1), the primary helium explorer in Tanzania with a 50% working interest in the Galactica-Pegasus helium development project in Colorado, USA (\"the Galactica Project\"), provides an update following the Blue Star Helium (ASX: BNL) (\"Blue Star\") announcement issued today regarding an update on the Jackson-4 L4 3154 development well.\nHighlights\n\n§ Jackson-4 flowed naturally during drilling and at Total Depth (\"TD\")\n§ Flow rate measurements since drilling operations were completed have seen increasing natural flow increased to approximately 190 thousand cubic feet per day (\"Mcfd\")\n§ Projected stabilised flow rates expected to be between 250 to 350 Mcfd constrained to optimise production, with a maximum potential projected rate of 450 Mcfd\n§ Early gas samples have returned helium concentrations of up to 1.18% (not air corrected) and 85.93% CO2 in line with expectations \n\nJackson-4 Gas Sampling Analysis\nThe Jackson-4 well reached a TD at 1,260 feet (384m) within the Upper Lyons Formation, encountering the Lyons Sandstone Formation at 1,198 feet (365m). As expected, no water was encountered during drilling of the Lyons Sandstone Formation with wireline logs confirming the penetrated Lyons Sandstone reservoir to be high-quality and gas saturated.\nFlow testing since TD has revealed increasing natural flow rates, reaching approximately 190 Mcfd and strong pressure build-up post-testing indicates high permeability and good reservoir communication. Based on the previous engineering study described below, and the observed flow rates, the projected stabilised flow rates constrained for production optimisation are expected to be between 250 to 350 Mcfd, with a maximum of 450 Mcfd.\nInitial laboratory analysis of gas samples from Jackson-4 showed a helium concentration up to 1.18% (not air corrected) and 85.93% CO2 (and 12.89% nitrogen) which is in line with expectations. Jackson-4 is one of the southernmost wells on the Galactica-Pegasus project and was anticipated to potentially access higher CO2 and lower helium concentrations than wells to the north and west.\nMaintai...