After fracturing oil and gas wells chinese proppant in its stimulation effect and production performance depends conductivity cracks. Fracture conductivity fracture conductivity is within the reservoir fluids, fracturing proppant and fracture permeability Aperture product support to represent. Therefore, physical properties and distribution of ceramic proppant in the fracture is an important factor china proppant affecting fracture conductivity. Of ceramic proppant performance requirements are as follows:
1, Ceramic proppants have sufficient compressive strength and resistance to abrasion, resistant to strong pressure and friction during injection, and effectively support the artificial cracks.
2, ceramic proppants particles relative density is lower, easy to pump into the underground.
3, ceramic proppants particle sizes to meet the design requirements of different wells, typically 0.4-0.8mm, roundness and sphericity greater than 0.9, and particle uniformity, smooth surface, turbidity should be less than 1000, in order to obtain the best possible high conductivity.
4, ceramic proppants particles at a temperature of 200 ℃ conditions, the fracturing fluid and reservoir fluid chemical reaction does not occur, the acid solubility of the maximum allowable value should be less than 7%.
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