Drilling course

Rig Calculations and Practice

Overview

Gives junior drilling staff the common formulas and calculations used in the oilfield, and introduces well control principles and kill sheets before their first well control course.

Learning objectives

  • Understand basic calculations used in well control
  • Drill and shut in a well on a drilling simulator
  • Complete the IWCF kill sheet for surface and subsea kill operations
  • Use the drilling data handbook to obtain tubular data
  • Pass a written test with a minimum score of 70%

Topics covered

  • American oilfield units of measure
  • Volume, capacity and displacement calculations
  • Effect of density and pump rate on dynamic system pressures
  • Formation pressures and strengths
  • Hydrostatic pressure in gas and fluid
  • U-tube calculations
  • Gas law
  • Pressure versus depth diagrams
  • Basic well control principles and well kill methods
  • IWCF kill sheets, surface and subsea
  • Practical exercises on a full-scale drilling simulator
  • Oilfield terminology