Helium One Global said study results showed good to excellent quality reservoir with very low clay content from Tai at the company’s Rukwa (100%) helium project in Tanzania.
STUDY
The quantitative evaluation of minerals by scanning electron microscopy (QEMSCAN) study was on drill cuttings collected from the Tai-1/-1A wells.
QEMSCAN analysis by rock type provided information on reservoir quality, mineralogy, seal potential and grain size distribution of the entire sedimentary sequence at Tai-1/-1A.
Helium One said that the findings indicated “good to excellent quality reservoir, demonstrating clean sands with very low clay content”.
CLAYSTONES
Chief executive David Minchin added that claystones units were best developed at the Top Karoo Group and Base Lake Bed Formation.
“However several intraformational clays also allow the potential for stacked seals to develop within these formations and helium to be encountered on multiple horizons from near surface to basement – as it was at Tai.
“This analysis maximises the value from the drilling at Tai by providing additional geological data to reduce risk in planning our 2022 drilling campaign.”