Hydrostatic Pressure and Kill Mud Weight Calculator
Free drilling calculator: hydrostatic pressure, pressure gradient and kill mud weight from mud weight, TVD and shut-in drill pipe pressure.Annular Volume and Capacity Calculator
Free drilling calculator for annular volume, hole or casing capacity and lag strokes, from hole size, pipe OD, length and pump output.Drill Line Ton-Mile Calculator (Round Trip)
Free round-trip ton-mile calculator for drilling lines, using the API RP 9B method with buoyed pipe and collar weights and travelling assembly weight.