A summary of the results is as follows: Helium and associated gases flowed to surface naturally in a free gas phase, Flow testing after clean up recorded a maximum rate of 821 thousand cubic feet per day (Mcf/d), New laboratory results from produced gas confirm concentrations between 8.7 - 14.5% helium, CO2 concentrations exceeding 70% have the potential to contribute to project economics, Vertical Seismic Profile (VSP) and wireline optical televiewer data was collected, and In-fill Airborne Gravity Gradiometry (AGG) survey flown.
Pulsar President and CEO,
Proposed future work
The Jetstream 1 appraisal well was designed to replicate the original 2011 discovery at LOD-6. This was successful and the existing seismic data suggests that the helium-bearing zone persists at depth, up to an additional kilometer (3,281 feet). Future work programs are proposed to consist of deepening Jetstream 1 to assess this potential, in conjunction with drilling a nearby step-out well and conducting a 3D seismic survey to define the structural extent of the resource.
Flow Testing
Completion and initial flow testing activities have been finalized at the Jetstream 1 appraisal well. The flow test program included five flow tests of both natural flow and under wellhead compression from the open-hole section of the well (between 503-671 meters (1,650-2,200 feet) depth). Each test lasted approximately six hours in duration with pressure build-ups of 18 hours between natural flow tests and approximately six days until the start of the compression tests.
The flow test with well site compression reached a maximum absolute open flow of 821 Mcf/d at a flowing tubing head pressure of 20 psi on a 1 inch choke. Results during natural flow climbed to a peak of 150 Mcf/d with 34 psi flowing tubing head pressure on a 1 inch choke with the rate still on incline at the six-hour shut-in mark. Step rate and choked tests were also acquired to help understand reservoir production parameters which will be announced in due course.
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Following well tests, tubing head pressure built up rapidly to near pre-flow conditions. There was evidence of introduced drilling fluid interference during the testing process, specifically in follow-up flows. Preliminary analysis indicates this is easily mitigated until these fluids are recovered during an early production clean-up flow period.
Laboratory Analysis
Gas samples were collected throughout the flow testing operations and were distributed to
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