Abrasion Empirical Equations for the Itabirite Mud System
Twenty-eight mud samples were tested in the laboratory to predict abrasion equations that will aid mud engineers for better treatment of itabirite mud systems. Three different ranges of particle size of itabirite were selected for the tests. Particle sizes between 74 and 125 microns, between 44 and 74 microns, and between 37 and 44 microns were used. Thirty-minute abrasion tests were conducted with a modified Hamilton Beach Blender at 9800, 11200, 12750, and 14350 RPM. Rheological properties, filtration properties, and abrasiveness were studied and analyzed. Regression analyses were performed between abrasion and the parameters of size, polymer concentration (Drispac Superlo or Kelzan XCD), and shear rate investigated in this research.
KeywordsShear Rate Polymer Concentration Drill Fluid Coating Agent Filtration Property
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