Are you trying to claim that 7% of natural gas wells have economically recoverable quantities of helium? If I understood that correctly, please provide some more information.
The atmosphere is 0.00052% Helium... Thats a lot of Helium.
And most of that, is in the far upper atmosphere called the heterosphere, about 100 kilometers above the surface. Not very accessible for a ground based separation facility.
So run a hose.
http://www.madehow.com/Volume-4/Helium.html
You can see that Helium is also a waste product from upgassing as well. If the price dictates, that helium will be captured from those processes and sold...so it isn’t just certain wells that contain it, but also the byproduct from upgassing.
“The atmosphere is 0.00052% Helium... Thats a lot of Helium.”
And most of that, is in the far upper atmosphere called the heterosphere, about 100 kilometers above the surface. Not very accessible for a ground based separation facility.
And at that altitude that 0.00052% won’t last long as it escapes into space.