Pulsar Helium Inc., a leading company focused on primary helium development, has announced an update on well-testing activities at its flagship Topaz project. The testing was conducted at the Jetstream #1 and Jetstream #2 appraisal wells in Lake County, Minnesota.

Recent pressure and flow tests have delivered promising results. Jetstream #1 recorded a wellhead pressure of 122 pounds per square inch gauge (PSIG), while Jetstream #2 reached a higher pressure of 151 PSIG. This is notably higher than the 145 PSIG measured at Jetstream #1 in February 2024, when the well achieved a flow rate of 821,000 cubic feet per day under compression.

During these tests, the company identified the presence of drilling fines — rock dust generated by the air drilling technique used to pulverize rock formations. These fines were found coating the walls of the wellbore and filling some fractures, which likely impeded gas flow. Although pressure communication within the wells remained intact, the flow was partially restricted, a condition that became apparent only once testing began.

In response, Pulsar conducted a preliminary clean-up of both wells to mobilize and remove the drilling fines. The initial results were positive, showing improved flow and confirming that the fines are mobile and can be cleared from the system. Despite current flow limitations, both wells demonstrated stable and consistent gas production under natural conditions and compression.

Further flow testing will resume once the clean-up operations are complete. The company estimates that these efforts will take six to 10 weeks. Upon completion, the team expects to perform additional testing to fully evaluate the production potential of the Jetstream wells.

“We are pleased with these preliminary findings and look forward to resuming flow testing once the rock dust has been removed from the wells,” said Thomas Abraham-James, president and CEO of Pulsar Helium. “Our technical team is taking the necessary steps to complete the clean-up, and we will keep investors informed as the work progresses and a timeline for resumed testing is finalized.”

Pulsar Helium remains focused on developing its Topaz project and advancing its strategy to become a major supplier of primary helium. The company continues to evaluate well performance as part of its broader appraisal program.

The Topaz project, located in northern Minnesota, marks Pulsar Helium Inc.'s entry as a first mover in the region, where the company holds exclusive lease rights. Pulsar has achieved a key milestone with the Jetstream #1 appraisal well, which reached total depth (TD) of 5,100 feet (1,555 meters) on Jan. 11, 2025. This drilling successfully penetrated the entire interpreted helium-bearing reservoir and extended beyond it.

Jetstream #1 had previously reached a TD of 2,200 feet (671 meters) on Feb. 27, 2024, during earlier drilling efforts. That phase revealed helium concentrations as high as 14.5%—significantly surpassing the commonly recognized economic threshold of 0.3%. In addition, carbon dioxide levels exceeded 70%, which is expected to further enhance the project’s economic viability.