[ RadSafe ] Radioactivity and Fracking

[Dan McCarn]

Good Evening Mike:

I used a caveat - 'natural' but I seriously doubt if cuttings or
sludges would suffice as a proppant. These are usually pretty well
classified or engineered materials since the objective is to 'prop-up'
induced fractures in the target formation.  This requires several
engineering characteristics such as hardness, sphericity and
relatively uniform size.

I imagine that the industry is looking hard at this issue just now.