Oil fracturing proppant application must meet the following performance requirements:

( 1 ) High  strength. Ensure high closing under pressure to get the most effective support can still crack . And different types of ceramic proppant composition , different intensity , the higher the intensity , the greater the pressure capacity .
( 2 ) particle size uniformity, sphericity . Proppant can improve the bearing capacity of uniform size and permeability of the proppant . The proppant particle diameter is generally used currently 0.45 ~ 0.9mm ( i.e. 40 / 20 mesh ) , sometimes with small diameter 0.9 ~ 1.25mm ( i.e., 20/16 mesh) .
( 3 ) less impurities . To prevent blockage of the pores and reduce support crack fracture conductivity . Fracturing sand impurities is the mixed carbonate sand , feldspar, iron oxides and clay minerals ; a marine acid solubility to measure the presence of carbonates in the fracturing sand , feldspar and iron oxide content ; measure turbidity levels present in the frac sand clay , silt or inorganic material particles.
( 4 ) a low bulk density is preferably less than the density of 2000kg/m3, to facilitate delivery of fracturing fluid and proppants effectively filling cracks.
( 5 ) High brine chemically inert , does not react with the fracturing fluid and the reservoir fluid , to avoid contamination propped fracture ;