Perspectum Drone and natural hydrogen volume flow ratesGenerally interesting article - although a bit lengthy - on natrual hydrogen and, to a lesser extent, helium.
How can this link in with Perspectum Drone?
"...to draw conclusions on the possibility of producing this hydrogen economically, it is necessary to know the volumetric flow rates and not just the concentration."
https://www.renewablematter.eu/articles/article/natural-hydrogen-a-geological-curiosity-or-the-primary-energy-source-for-a-low-carbon-future
Now, the question is, how much income such a contract could bring... My take is that would, initially unlikely be huge, but could be promising if proven a useful tool if deemed instrumental in helping proof economically feasible finds.