Introduction to composition of fluid, physical/thermal/thermo-mechanicalproperties of mud, waterbase drilling fluid, oil fluid, effects of air, gas, and mist drilling.Introduction to clay mineralogy , colloidal chemistry, clay's reaction with water, rheology, filtration properties, hole stability, common drilling problems, and completion fluids.Common drilling fluid tests, contamination problems, and resolutionsÍž fluid system equipments, lost circulation, and types of drilling fluids.Different t