I am an investor in this space and presently doing my DD...

I am an investor in this space and presently doing my DD regarding HCD. I noticed that one of your links highlights the tank storage cleaning (sludge) trial in the US. I have learned from another firm active in this space that it estimates about 9-10 billion oil barrels equivalent can be found worldwide that need to be removed from tank storage. Presently, this sludge is removed and mostly discarded. Can HCD'S Klenn Flow product monetize his sludge? If so, this is a Big idea.BTW, I noticed that Valkor is listed in several of the HCD's trials. This is a private Canadian company and represents a good partner for HCD to have.I truly hope the 3 trials are successful.
If I understand it correctly, my only problem with HCD's business model is that they are in the I-will-sell-you-a barrel-of-my-stuff business. In my humble opinion, HCD should be in the business of I-will-charge-you-$X per barrel of oil or tonne (fracking sand or any other by product recovered such as silica) that-I-help-you-generate.IMO