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High Pressure-High Temperature Wells

Date

7-11th December

Location

London & Dubai

Instructor

TBA

Duration

5 Days

Course Content:

  • HPHT definition
  • Kick frequency in HPHT wells
  • HPHT profiles: temperature and pressure
  • Special problems
  • Drilling window/ECD
  • Kick/Losses window
  • Rig selection for HPHT wells
  • FIT consideration
  • Casing seat selection
  • Rock properties
  • API casing strengths, Steel for HPHT wells
  • Exercises
  • Kicks in HPHT wells
  • Gas solubility in oil-based muds
  • Comparing kick observed at surface with downhole kicks
  • Kick Profiles using Driller’s method
  • Single and Distributed kicks
  • Correcting kill line graphs
  • Kicks in horizontal wells tolerance
    • calculations
    • Assessment exercise
  • Well Control Equipment Selection:
    • BOPs
    • Elastomers
    • MGS sizing
    • Choke manifold
    • Sour gas consideration
    • Hydrates formation
  • Mud types and selection
  • Effects of gel strength
  • Breathing and ballooning
  • Swab and surge pressure profiles
  • ECD against depth
  • Actual examples
  • Barite sag
  • HPHT Drilling techniques
    • Breathing and ballooning
    • Swab and surge pressure profiles
    • ECD against depth
    • Barite sag
    • Tripping procedures
    • Drilling transition zone
    • Drilling HPHT zone
  •  Cementing consideration
  • Well testing considerations
  • Well completions

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