Fracking process Hydraulic fracturing technology is an effective technology fields to increase production. The process is to use high-pressure pump on the ground, the high viscosity of the fracturing fluid to significantly exceed the absorptive capacity of the formation of the displacement is injected into the well at the bottom Biechu high pressure;
frac proppant when the pressure is greater than the near wellbore formation rock formation stress and tensile strength, at the bottom near the ground will crack;
Fracturing proppants continue to inject liquid with sand proppant, fracture proppant filling extending forward and, after shut-filled fracture closure on the proppant, the last in the vicinity of the bottom cracks with a geometry and conductivity of a formation to facilitate a faster inflow of crude oil around the bottom of the well, to achieve the purpose of increasing production. As hydraulic fracturing proppant filling an important medium, which directly affects the capacity of the entire yield wells. Therefore, the study of high performance oil proppant for oil yield is very necessary. Oil fracturing proppant * Major points of natural quartz sand,
artificial ceramic proppant, resin-coated proppant (ie coated proppant) three categories, including coated proppant is divided into two coated sand and ceramic coating species. Natural quartz sand is not good for its sphericity, low intensity, but the lowest cost, it is generally in the large-scale use in shallow; artificial ceramic proppant due to its sphericity, high strength, corrosion resistance, good conductivity etc., as it has been widely used in the deep fracturing. Since the resin-coated sand after coating strength, density becomes small, can replace ceramic proppant oil in a medium-depth, but few studies coated ceramic proppant, the higher the cost, and could not be used Actual production
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