Oil fracturing proppant ceramic ceramic needs what

Fracturing technology is now widely used in oil exploration , the core technology is the formation fracturing diversion cracks and layer conductivity is much less than the diversion cracks. Now particulate 

ceramic proppant is often added to the fracturing fluid , the aim is to make the fracture after the fracturing is still in an open state , resulting in a continuous oil product which is to obtain a high permeability fracture one of the important measures . In the application of deep well fracturing proppant performance requirements are very high , deep and strong chemical corrosive effect of salt solution and high thermal closure pressure , so you need to have a certain amount of proppant corrosion resistance and compressive strength . Proppant performance requirements of the main

( A ) a low density , to effectively improve the production efficiency ;
( 2 ) In a large injection pressure and friction when still produce artificial cracks. This requires support good resiliency and abrasion resistance , so that will not crack closure pressure is high and closed ;
( 3 ) to try to smooth and uniform particles , because smoothness and uniformity of the particles will affect conductivity .
( 4) The sphericity and roundness of particles that are greater than 0.9 , and a particle size in the range of between 0.4mm-0.8mm , the reason why this range is taken as the particle size to be well designed to meet the different requirements ;
5 ) To inexpensive to improve cost proppant ;
( 6 ) good acid resistance , acid solubility to less than 7% , as a proppant in the pressure and temperature of the fracturing fluid and the reservoir fluid and chemical reaction, if the lower the acid resistance , chemical stability of the proppant the worse , and they react more easily .