training specialists to the upstream oil and gas industry

HPHT Drilling Operations

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Course overview

High Pressure (HP) (>10,000 psi) and High Temperature (HT) (>300°F) conditions are becoming more routine drilling targets worldwide in the pursuit of deep gas reserves. This course delivers a comprehensive review of HP HT well design, engineering and drilling requirements. The content emphasis in this course/workshop is placed on current regulatory and standard operating principles of HP HT – right from a well's concept phase, through pre-planning, rig and equipment selection, the basis of well design, detailed design, engineering, offset study, and final drilling of the critical HP HT transition and reservoir zones. The challenges of geological risks and uncertainty with drilling fluids, cement design, equipment assurance and drilling problem prevention, solving and decision making, all require special attention. The course draws on several HP HT case studies from different drilling environments in conjunction with instructor led facilitation, use of multi-media files and most importantly individual and group led engagement sessions.
Equip a multi-disciplinary team to manage and control the drilling hazards and risks that exist in HP HT wells. This course also delivers a participative, practical program where individual and teamwork skills are developed to meet the HP HT drilling challenges presented.

The course is desgined for

The course targets any member of a project team: geo-scientists, engineers, technical, non-technical personnel at all levels. It also includes everyone involved in the design, construction, engineering, implementation and the drilling of HP HT wells. This course embraces drilling engineers with or without experience.
Pre-requisites: Basic knowledge and understanding of HP HT well's, 2-3 years' involvement in drilling projects in an operating, support or services role preferred but not essential.

Course objectives

Create an environment for a multi-disciplinary team to practically challenge HP HT standards, instruction,
well integrity practices and develop new concepts to well safety and performance.
• Identify and eliminate the drilling hazards and risks
within HP HT wells to as low as practicable.
• How to translate and sustain HP HT drilling case-study
findings, success and failure learnings into future
drilling projects.
• Awareness of key issues that exist in HP HT design, engineering and drilling operations.
• Increased proficiency with ability to address the key hazard and risks impacting HP HT drilling project delivery.
• Specific knowledge to skilfully control HP HT drilling problems as they arise, yet realize the importance of having necessary contingent mitigation in place for unexpected situations.
• Appreciate technical challenges and difficulties that exist, with new awareness to risk reducing and adaptive technologies being used and applied for specific HP HT drilling applications.

Course outline

HP HT Group/Individual Exercise


  • EMW calculations
  • Drilling and cementing fluids, temperature, solubility
  • effects
  • Gas behavior, surface handling
  • Pore fracture and wellbore stability

HP HT Wells and Drilling Situational Problems


  • General HP HT situational drilling problemsHP HT situational problems:
    • Operating loss and waste
    • Narrow operating windows
    • Loss circulation, wellbore instability
    • Overbalanced drilling
    • Real time vs modelling prediction
    • Drilling fluids (pressure and temperature effects)
    • Barite sag, solids loading and hole cleaning, swab and surge
    • Stuck pipe prevention

Equipment assurance, failure prevention

  • Prevention, quality control and assurance
  • Surface and downhole equipment
  • Life of well integrity and assurance

Other HP HT situational problems:

    • Geological risks and uncertainties
    • Formation damage
    • QHSE and environment protection
    • Logistics and supply chain
    • Contingency, emergency
    • Suspension and abandonment

Learning from Macondo's failure

    • 45mins (investigative) video
    • Review of findings
    • Discussion

HP HT Group / Individual Exercise

  • Situational drilling problems exercises

Well Integrity, Well Control Assurance


Well control management and assurance

  • Regulation, operating standards
  • Roles, responsibilities of personnel
  • QHSE, loss of control operations
  • Training and competency development
  • Team work and communication
  • Primary control, Early kick detection
  • Finger printing
  • Flow back, Supercharging, Bridging
  • Best Practice checks to be performed
  • Secondary control
    • Preparation and alertness
    • Pressure management
    • Kick, shut in procedures
    • Determining kick size
    • Cross flow, Secondary influxes
    • Tertiary control
    • Bull-heading, lubrication, volumetric killing (stripping)
    • Dynamic kill and other techniques underground flows
    • H2S, simulator training and exercises

HP HT Emergency and contingencies

  • Emergency procedures
  • Well kill continuation during loss of power
  • Emergency cement plugs
  • Insufficient casing shoe strength

HP HT Group/Individual Exercise

  • Secondary and tertiary well control exercise

HP HT Adaptive Drilling Technologies

HP HT Technology adaptation

  • Optimizing well design
    • Expandable systems
  • Wellbore strengthening
  • Mono-bore wells
  • Casing while drilling
  • Managed pressure drilling
    • Simplified MPD, continuous circulation
    • Constant bottom hole pressure
    • Mud cap, pressurized mud cap drilling
    • Dual gradient drilling, Advanced MPD
  • Other technology adaptors
    • HP HT tools advancement
    • LWD, SWD, RSS advancement
    • New drilling and cementing systems
    • Designer cement for HP HT wells
    • One trip, SMART completions
    • Enhanced seals and well integrity

Final close out discussions

  • Parking lot re-visit,
  • Final HP HT question and answer
  • Open house discussion session

Introduction to HP HT driling operations

HP HT Definition, classification, challenges, essentialsand differences:

  • Definitions, classifications, industry growth
  • Technical challenges and knowledge gaps
  • Origins and characteristics of HP HT
  • Why HP HT is different to normal drilling

Debrief: Assuring safe and efficient HP HT drilling

Well construction, design, drilling rigs equipment and HP HT operating systems

  • Well construction, planning, design issues:
    • Well equipment quality, material and failure issues
    • Hazards and concerns
    • Complicating factors
    • Well integrity, casing design and tubular selection
    • Well equipment response and preventing HP HT failures.
  • Rig, well equipment, integrity, concerns:
    • HP HT well control layout
    • Rig, equipment audits, assurance
    • BOP equipment and component details
    • Cement (kill) pumps, cement manifold, and hook
    • up details
    • Surface well control equipment, mud gas separators,
    • de-gassers
    • Rig instrumentation
    • HP drilling components and well-kill facility
    • Downhole tools and equipment

HP HT Group Exercise

  • Hazard within HP HT drilling operations
  • Generate a priority list of project specific drilling hazards

HP HT Design, Engineering & Operations

Well Planning Design and Construction

  • Planning and sequencing
    • Project management simplified
    • Well planning, basis of designs
    • Casing and tubular selection
  • Well design, engineering issues, concerns:
    • Pressure management
    • Losses, kicks
    • Wellbore instability and differential sticking
  • Gas behavior in HP HT drilling fluids:
    • Gas definitions, gas release, acceptable levels
    • Equivalent mud weight management
    • Understanding HP HT pressure effects
  • Ideal gas laws and importance of compressibility factor 'Z':
    • PVT & density relationships
    • Gas behavior while drilling
    • Fluid diffusion
  • Optimizing drilling and cement fluids
    • Fluid testing and monitoring
    • 'EMW' operating challenges
    • Temperatures and heat transfer effects
  • HP HT case studies:
    • Well objectives & design considerations
    • Pressure, temperature profiles
    • Days vs depth, offset study, hazards and risk mitigation

Wellbore Pressure and Stability Management

  • Formation abnormal and subnormal pressures recap:
    • Effective pressure management
    • Pressure prediction and detection
  • Wellbore stability fundamentals:
    • Claystone, mudstone and shale classification problems
    • Impact of poor decision making
    • Fracture gradient prediction, well integrity testing
  • Benefits of pressure while drilling and advanced HP HT modelling

HP HT Transition and reservoir zone drilling

  • Why manage plans HP HT transition and reservoirzones?
    • Well integrity testing, assurance
    • Well monitoring equipment, detection, early warning systems
    • Transition, reservoir zones drilling
  • Transition, reservoir zone well control
    • Managing geology and geoscience problems
    • Gas solubility, gas expansion and PVT effects in
    • drilling fluids
    • Mud weight management (gelation, inertia and
    • compressibility)
    • Pore pressure, wellbore instability detection.
    • Best practice
    • Finger printing, flow-back, Ballooning and super
    • charging



Location Start Date End Date Cost Trainer Book
Upon request       Peter Aird  

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