Proppants for Enhanced Oil Recovery
Hydraulic fracturing, also called fracking, is a well stimulation technique involving the fracturing of bedrock formations by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep-rock formations through which natural gas, petroleum, and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants (either sand or aluminium oxide) hold the fractures open.
One of the most important features of a proppant is uniform particle size. Currently, the industry uses a combination of various types of sand. This sand is course and does not allow for the oil to flow freely in and out of the fissures.
The SonoAsh process can create an engineered, uniform particle size, high value proppant that can be used by the oil and gas industry. The output is an engineered product ideally suited to keeping fissures open longer and has a higher compressive strength than traditional sand.