Dex Welch reports "Dry Ice has been used in the oil fields for years to clean tank bottoms. When paraffin, sludge, etc build up, a chemical is added along with Dry Ice to roll (stir up) the tank bottom. This breaks out the liquids & separates water from oil in paraffin mixtures so that water can be removed & the oil saved." Liquid CO2 is also used to crack and increase oil flow in wells.
provide dry ice products such as: Pellets, Rice Pellets (Dry Ice Blasting),
Micro Pellets, 1/4 inch , Special Cut Blocks, Slices, Nuggets and High Density