Planning drilling programs


CALCULATIONS

  • Well casing design (planned/actual), sidetrack design
  • Anti-collision calculations
  • Hydraulic calculations for mud programs
  • Calculations of trip speed and equivalent circulating density (ECD)
  • Calculation of internal and external pressure profiles along the casing
  • Calculation of internal and external differential pressure profiles along the casing
  • Casing calculations for frozen rocks (permafrost)
  • Calculations of casing string drift
  • Calculations of casing stand-off
  • Calculations of casing stand-off
  • Cementing program calculations
  • BHA calculations
  • Drag, torque and buckling analysis for drill stem and casing
  • Drilling string tensile strength / tear test
  • Calculation of differential wall sticking
  • Calculations for recovering stuck pipe by tension and rotation (drag and torque)
  • Calculations for setting jars, oil spots, well kill


PLANNING

  • Casing design optimization
  • Selection of well casing (dimensioning)
  • Specification of casing test conditions
  • Evaluation of mechanical loads on casing elements during tripping (RIH/POOH)
  • Drilling string tensile strength / tear test
  • Planning drilling programs
  • Planning mud programs
  • Planning and optimization of well trajectory to reduce meterage (footage) and drilling days
  • Planning tripping operations and well cleanout
  • Planning RIH casing and drill stem
  • Planning cementing programs
  • Preparation of contingency and emergency plans
  • Invariable engineering calculations (geomechanics, drill stem, BHA, casing)

 

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