RE: The real experts are very excited about the helium in Tanzania21 Feb 2024 07:03
The buzz is building about helium in Tanzania:
Headline: Has helium heaven been found in East Africa? With gas selling at $450 per thousand cubic feet, junior player hopes so.
Headline: Huge helium discovery βa life-saving findβ:
A new approach to gas exploration has discovered a huge helium gas field, which could address the increasingly critical shortage of this vital yet rare element. Helium doesnβt just make your voice squeaky β it is critical to many things we take for granted, including MRI scanners in medicine, welding, industrial leak detection and nuclear energy. However, known reserves are quickly running out. Until now helium has never been found intentionally β being accidentally discovered in small quantities during oil and gas drilling.
Now, researchers from Oxford Universityβs Department of Earth Sciences and Durham University, working with Norwegian helium exploration company Helium-One, have developed a brand new exploration approach. The first use of this method has resulted in the discovery of a world-class helium gas field in Tanzania. Their research shows that volcanic activity provides the intense heat necessary to release the gas from ancient, helium-bearing rocks. Within the Tanzanian East African Rift Valley, volcanoes have released helium from ancient deep rocks and have trapped this helium in shallower gas fields. The research was presented today by PhD student Diveena Danabalan at the Goldschmidt geochemistry conference in Yokohama, Japan.
Diveena Danabalan said: βWe show that volcanoes in the rift play an important role in the formation of viable helium reserves. Volcanic activity likely provides the heat necessary to release the helium accumulated in ancient crustal rocks. However, if gas traps are located too close to a given volcano, they run the risk of helium being heavily diluted by volcanic gases such as carbon dioxide, just as we see in thermal springs from the region. We are now working to identify the βgoldilocks-zoneβ between the ancient crust and the modern volcanoes where the balance between helium release and volcanic dilution is βjust rightβ.β
Professor Chris Ballentine said: βWe sampled helium gas (and nitrogen) just bubbling out of the ground in the Tanzanian East African Rift valley. By combining our understanding of helium geochemistry with seismic images of gas trapping structures, independent experts have calculated a probable resource of 54 Billion Cubic Feet (BCf) in just one part of the rift valley. This is enough to fill over 1.2 million medical MRI scanners. To put this discovery into perspective, global consumption of helium is about 8 BCf per year and the United States Federal Helium Reserve, which is the worldβs largest supplier, has a current reserve of just 24.2 BCf. Total known reserves in the USA are around 153 BCf. This is a game changer for the future security of societyβs helium needs and similar finds in the future may not be far aw