Oil frac proppant during use

Oil frac proppant during use:
Fracturing fluids and additives are mixed together, and then is pumped into the formation. Formations will produce cracks at the same time, and then the inside for oil fracturing proppant.
Oil fracturing proppant maintained after reflow cracks. Therefore, fracturing proppant must be strong enough to withstand the pressure of the corresponding closure, the cost ratio is: pumping liquid oil fracturing proppant 25%, 46%, 19%, 10% of acid fracturing chemicals materials.
Oil fracturing proppant fracturing is usually acidic and Hydraulic fracturing using:
(1) acid fracturing fluid pressure energy splitting rock fracturing fluid and oil fracturing proppant fractures, allowing gas flow.
(2) hydraulic fracturing we inject a high-viscosity fluid (liquid fracturing fluid and additives) into the well, a faster rate than the soil adsorption, which causes pressure around the crack formation and created at the bottom (commonly1-3 mm), and then injected into the cracks of oil fracturing proppant with proppant.