Oil fracturing proppant roundness and ball high

oil fracturing proppant roundness representing relative sharpness of edges and corners of the sphericity of the particles, refers to the sand and spherical similar degree.

  Determine the roundness and sphericity of commonly used visual method, the general use of photomicrographic technique in 10~0 times under the microscope or photographed, and then compared with a round ball, degree of plate and standard, determine the sand round, sphericity.

  Proppant round, the ball is not good when the sand filling cracks, poor permeability and angular easily broken, crushed little particles formed will plug the pores, reduce its permeability.