2013年7月23日星期二

Oil fracturing proppant technical parameters control list

The commonly used quartz sand proppant. Ceramic and various resin coated conform particles.
Compared with  Ceramic proppant ,  the price of the cheapest quartz sand: the relative density is relatively low, then with construction for pumping, so it is widely used, but the low intensity of quartz sand, the ball is poor, thereby reducing the crack diversion capacity, particularly closure does not apply to high pressure deep well.

Quartz sand coated with a resin in accordance with particle sphericity have improved, a higher corrosion resistance can be achieved targets, even though the internal quartz sand are crushed, the resin layer may be coated outside wrapped pieces, maintaining fracture conductivity ability  frac proppant  is a development direction, but the current product shelf life is relatively short, the cost is also high.
With a variety of materials and different manufacturing process oil fracturing proppant ceramic sand, his relative density slightly higher than quartz sand, on fracturing fluid pumping conditions and are demanding higher performance, increased fracturing of difficulty, but the ceramic sand oil fracturing  Proppant  sphericity and roundness than quartz sand, and can be up to 0.9, in particular corrosion resistance, temperature resistance and compressive strength are higher than the quartz sand thus decreasing fracture conductivity is much lower, and now ceramic sand oil and gas fields has been more and more widely used ceramic sand oil fracturing proppant.

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