Helium Ine Factual information12 Feb 2024 07:27
"A drill stem test (DST) is some form of temporary completion of a well that is designed to determine the productivity and fluid properties prior to completion of the well. Although a DST can be performed in uncased hole (open hole) or in cased hole (perforation tests), the open hole test is more common"
If the naysayers read the RNS they will find open hole is what they did.
Rns 25th Jan
"The Company will now rig up for wireline operations to log the entire well. Following wireline operations, the Company will then perform an open hole well test (DST) across the faulted zone and additional zones of interest, once full petrophysical analysis of the wireline logs is complete. Downhole samples will be taken and evaluated onsite using the pressure-volume-temperature field laboratory. Any additional samples will be sent off to specialised noble gas laboratory for further verification."
RNS 5th Feb
"The Company identified three zones for well testing, and upon completion of each DST, all three zones successfully yielded downhole gas samples. When performing the Basement DST, high concentrations of helium began to flow to surface following reverse circulation and yielded a compositional mix up to 4.7% helium, 1.5% argon, 8% oxygen and 86% nitrogen. These results were evaluated using an onsite Mass Spectrometer and verified from downhole samples by a field PVT laboratory at the well site. A measured helium concentration of 4.7% equates to almost nine thousand times above background levels (5.3ppm).
Two subsequent well tests were carried out across the fault zone and yielded similar results from the downhole samples which were evaluated in the onsite field PVT laboratory. The Company has identified that the frequency of helium increases with depth and is preferentially carried in hot fluids out of the Basement and along fault conduits. As the helium rises through the well bore, the pressure decreases, and it is thought that the helium then comes out of solution and increases in concentration.
This was further collaborated with mudlogging data that showed elevated helium whilst drilling the 8½" hole section through the Lake Beds Formation and the shallow fault zone. The well produced a continuous measurement of helium gas across the micro-GC and this consistent helium gas measurement was repeated during hole opening operations in preparation for running casing.
Despite having an accurate, independent field PVT laboratory on site, the Company has collected duplicate samples where possible, and these will be sent to a second laboratory for independent verification."
I assume that independent onsite testing is why the nomad has allowed so much information out at this stage. This does in my eyes confirm commerciality and as Lorna has stated rubber stamping in the verification stage, I am more than happy to have large sums here.