Hydraulic fracturing filling medium - oil fracturing proppant

As hydraulic  Fracturing proppant  fills an important medium, fracturing proppant performance directly affects the ability of the entire production wells. Therefore, the study high-performance oil fracturing proppant for hydraulic fracturing and oilfield production is very necessary.

Hydraulic fracturing technology is an effective technique oilfield production. Hydraulic fracturing process is the use of high-pressure pump on the ground, the high viscosity of the fracturing fluid to significantly exceed the absorption capacity of the displacement of the strata is injected into the well, at the bottom Biechu pressure; when this pressure is greater than the strata around the bore stress and tensile strength of the rock formations, the formations will be at the bottom near the cracks; continue injected with sand proppant fracturing fluid, fracture  Proppant  extends forward and is filled crack closure after shut-in Fill fracturing proppant, and finally at the bottom near the ground to generate a certain geometry and conductivity cracks around facilitate faster flow of crude oil wells at the bottom, to increase production purposes.

Oil  fracturing proppant  main points of natural quartz sand, artificial ceramic proppant, resin-coated proppants (ie coated proppants) three categories, including coated proppant is divided two kinds of coated sand and ceramic coating . Natural quartz sand because the ball is not good, low intensity, but the lowest cost, it is generally used in a large number of shallow wells; artificial ceramic proppant sphericity is good because of its high strength, corrosion resistance, strength, diversion ability and good, like it to be used extensively for in deep fracturing. Because after the resin coated sand coated after strength, density becomes small, you can replace the ceramic proppant used in moderately deep wells, and coated  ceramic proppant  few studies, high cost, temporary not used for actual production.