Drilling Calculations
	Provide guidance and practice in all of the important calculations required during drilling operations Section I - Fractions - Areas - Volume and capacity - Units of capacity - Capacity of a hole - Pump output calculations - Bottoms up or bit to surface time - Time for complete circulation - Annular velocity - Spotting pills - Cementing calculations - Single stage cementing - Two stage cementing - Liner cementing - Balanced cement plugs Section II - Formation pressures - Hydrostatic pressure and pressure gradients - Bottom hole pressure and U-tube concept - Reduction of hydrostatic pressure by inadequate fill-up - Bottom hole pressure while spotting light fluids - Closing in to contain a kick - Influx density - Maximum allowable annular surface pressure (MAASP) - Pressure calculations - True vertical depth in a deviated hole - Behaviour of formation gas in the wellbore - Reduced rate circulating pressure - Circulating kill mud - Well killing methods Section III - Formation testing - Stuck pipe stretch calculations - Buoyancy - Mud conversion tables and buoyancy factors - Work done by drilling line - Introduction to hydraulics - Hydraulic horsepower - Drill collars, bitweight and neutral point Study time - approx. 40 - 60 hours Qualification - City and Guilds of London Institute (CGLI)