Pulsar Helium Inc. announced that on February 28, 2024, the Jetstream #1 appraisal well at the Topaz helium project in Minnesota reached total depth (TD) of 2,200 feet (671 meters). Prior to reaching TD, helium shows were encountered during drilling between 1,750 - 2,200 feet (533 - 671 meters) with concentrations of up to 12.4% helium measured by the on-site mass spectrometer. When TD was reached, the well was conditioned with air to assist in removal of residual drill fluid, the well then began to naturally flow helium-rich gas at an unmeasured rate to surface at 6:30 AM CST where the mudlog gas composition increased from 3.7% to 5.1% helium 2 & 3 over a 5-hour clean-up period.

Due to the significant air volumes pumped into the well during the drilling process, these measurements are considered to be a minimum value due to dilution by atmospheric contamination. The gas compositions were measured by the independent surface logging team using their on-site quadrupole mass spectrometer. Isotube gas samples have been taken from the mass spectrometer at the various show intervals and will be shipped to a specialist gas laboratory for full molecular composition, removal of atmospheric (air) contamination, and isotopic characterization.

Drilling of the Jetstream #1 appraisal well ended 50 feet higher than the planned TD (2,250 feet /686 meters) due to abnormally high winter temperatures and the imminent start of Spring Load Restrictions on local road systems. A well testing package is intended to rig up on Jetstream #1 and execute a flow testing and pressure build-up program, plus collect pressurised gas samples for laboratory analysis when road conditions allow heavy traffic to return.