2014年3月30日星期日

Performance Oil proppant requirements

Performance Oil proppant requirements: 1 , proppant sufficient compressive strength and wear resistance , can withstand strong pressure and friction when injected , and effectively support the artificial cracks. 2 , the relative density of the  natural gas fracking  particles must be low, to facilitate pumped downhole . 3 , proppant particles under conditions of a temperature of 200 degrees , and the fracturing fluid and the reservoir fluid is not a chemical effect , the solubility of the acid should be less than the maximum allowable value of 7% . Currently used mainly quartz sand oil well fracking,bauxite sand and resin-coated ceramic composite particles. Due to the low cost of quartz sand , while lower density easy to pump , has been widely used , but quartz sand strong low end , the ball is poor, reducing the fracture conductivity , does not apply to high pressure deep well closed . Composite resin coated quartz sand particles , sphericity improved corrosion resistance strong, conductivity is also good , but the products remain short- term , the cost is too high, the cost of the promotion of the supremacy of today is not easy , and the use of bauxite ceramic craft ceramic natural gas fracturing, high density, good sphericity , corrosion resistance , high temperature, high pressure, while costs can be better controlled , and therefore more widely used in oil and gas fields being . Practice has proved that the use of ceramic proppant fracturing oil wells can increase production by 30-50% , but also to extend the service life of oil and gas wells , is the key material oil, gas wells in low permeability oil and gas exploration, construction , not only to increase oil and gas production , and more to extend the service life of oil and gas wells .

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