Oil shale mining process, hydraulic fracturing is a oil fracturing proppant technique commonly used. It is mainly the use of ground high-pressure pump, a large number of chemical substances doped water, sand, etc. made fracturing fluid, poured into the depths of the rock fracturing so dense rock cracks expand, and ultimately release of oil or natural gas. The US Geological Survey estimates that by 2018 23 percent of US oil and 57 percent of gas production using hydraulic fracturing method. More than that, in addition, hydraulic fracturing can be used to increase the general yield of water and increasing the capacity of geothermal power and so on.
Fracturing fluids used in hydraulic fracturing method of 99% water and sand composition, in which the main role fracturing proppant sand proppant. Statistics show that fracturing oil and gas wells bite requires about 1,500 tons of sand, but if you use more sand in the fracturing process, oil and gas production the mine will be further improved. It also makes a number of oil and gas companies try to use more sand in the mining process.