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ICTD International Centre for Training and Development

High Pressure High Temperature (HPHT) Drilling

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About the course

HPHT Drilling is a five-day course designed to build confidence in planning and drilling wells in HPHT fields through case study work and discussions.

This course introduces participants to the HPHT well complexities and will teach them how to identify the specific areas that detailed design work is required to properly plan and drill an HPHT well.

The course will step through the stages of well planning but focuses on the specific issues that are unique to HPHT drilling. All the subjects are supported and reinforced by numerical examples. The course contains a mixture of formal teaching, individual and group exercises, and case studies. Informal discussions of local issues will be covered.

## Course Objectives

Upon successful completion of this course, the delegates will be able to:

  • Learn to identify the areas of complexity for this type of reservoir, and ultimately, how to design HPHT wells
  • Create well plans that explicitly identify and manage risks
  • Well control awareness
  • Learn rig selection
  • Create contingency plans using well’ specific objectives
  • Identify the materials and equipment involved in the various completion tasks
  • Perform calculations and graphical interpretations needed to complete a drilling project

Course Outline

Day 1


  • Mud types and selection
  • ECD issues
  • Temperature effects
  • Barite sag
  • Compressibility
  • Fluid stability
  • Elastomer compatibility

### Day 2


  • Pore pressure and fracture gradient windows
  • Gas expansion
  • Formation charging/ballooning
  • Loss circulation
  • Crew awareness and training
  • Dissolved gases in mud
  • HPHT well control procedures and equipment

### Day 3


  • Design considerations
  • Loads on casing and tubing
  • Shoe placement
  • Effect of doglegs (conductor verticality)
  • Connection selection
  • APD due to heat / thermal expansion
  • Temperature deration
  • Casing wear
  • H2S and CO2 effects
  • Torque and drag
  • Design safety factors
  • Failure of downhole tools
  • Wellbore stability

Day 4


  • Types of rigs and suitability
  • Rig equipment rating
  • Additional equipment required Equipment
  • Downhole equipment selection
  • Solids control equipment
  • Torque and vibration mitigation
  • Logging tools

Day 5


  • Risk assessment
  • Decision trees
  • Contingencies
  • Relief well planning

High Pressure High Temperature case studies

## Course Methodology

A variety of methodologies will be used during the course that includes:

  • (30%) Based on Case Studies
  • (30%) Techniques
  • (30%) Role Play
  • (10%) Concepts
  • Pre-test and Post-test
  • Variety of Learning Methods
  • Lectures
  • Case Studies and Self Questionaires
  • Group Work
  • Discussion
  • Presentation

Who should attend

This course is intended for Experience drilling engineers with no previous HPHT experience, who want to work in HPHT fields. They will learn to identify the areas of complexity for this type of reservoir, and ultimately, how to design HPHT wells.

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