RE: Downside ?24 Oct 2023 06:42
The only downside would be the same story as 2021 - they have already shown there is a large working helium system in the Rukwa basin, with helium gas at multiple levels. The two downside scenarios would be:
(a) there are signs of free gas but they are unable to run confirmatory tests for mechanical or geological reasons (problems with kit, the well, or drilling in the wrong place)
(b) the deeper helium is not accumulated in free gas reserves that can be economically trapped/tapped for extraction, like the seeps they found in the shallow lakebed sands at Tai1.
HE1 have put in a lot of effort to mitigate (a) and to hypothesise (b). They are drilling for a third time at Tai on the strong belief that there is a deeper trap system (based on the seismic data, and the mud logs from Tai1/2). They believe they discovered it in 2021 and that the problem was more about (a) than (b). They spent millions to reduce the risk of (a) and shifted the drill site to reduce the risk of (b). Both risks still exist though until proven otherwise, but they’ve done as much as could be done to mitigate. Fingers crossed.