Horizontal & Multilateral Wells

  • Instructor:
  • Gerrit van Wilpe and , H. Rabia

  • Course Duration:
  • one week

  • Objectives:
  • At end of course, participants will be: able to identify candidates wells for horizontal drilling, design horizontal and multilateral well profiles, Understand single and double build curveCalculate torque and drag, Understand kick off methods, Compile a drilling and completion programme, Estimate wellbore stability mud weights

  • Content:
    • Geology and reservoir considerations
    • How to select and screen horizontal wells
    • Target Considerations : Dimensions, Azimuth , target area, markers
    • Effects of dip angle on final hole angle and hole TVD
    • Profile design and well path calculations : Example from Oman
    • Drill string design: Torque, drag, buckling calculations
    • Mud systems
    • Kick off techniques
    • Drillbits and coring
    • Rock Mechanics and Wellbore stability : Actual Example from North Sea
    • Hole Cleaning
    • New drilling Methods: ERD, UBD , CT , Intelligent MWD systems
    • Logging and perforating horizontal wells
    • Completion methods: zonal isolation, multilateral considerations
    • Formation damage and cleaning
    • Workover considerations
    • A Complete Well Design
    • Exercise and presentation

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