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Cenosphere for oil well drilling
cenosphere is a lightweight non-metallic multifunctional powder material. It has a diameter of 50-850 microns and its main component is composed of silicon dioxide (SiO2) and aluminum oxide (Al2O3). Its appearance is grayish white or gray, loose and good in fluidity. Under the microscope is a transparent silver-white spherical body, hollow, with a hard outer shell, a small amount of inert gas of N2 or CO2 inside the ball! It has fine particles, hollow, light weight, high strength, wear...
