Date: 12-23 December 2021
Location: Erbil
Date 9-20 January 2022

Instructor:

H. Rabia


Course Duration:

Two Weeks : First week on well engineering, second week on advanced casing design


Highlights:

This course will provide the necessary foundations to understand the drilling process from spud to well completion. This intensive course is the most complete drilling training course available to the drilling industry.


Objectives:

This course offers a practical approach to well design and drilling operations. On completion of the course, participants will be able to plan and design most wells whether vertical, directional or horizontal. Participants will also be able to write drilling programs and understand hole problems.

Note: Some variations in course content are possible depending on the instructor; however, the vast  majority of topics will be covered.


Content:

First Week: Well Operations

Second Week : Advanced  Casing Design

One certificate  will be  given to those who attend the two weeks  ( Advanced Well Engineering & Operations)

Basic Petroleum Geology

  • Basic petroleum geology
  • Rock types
  • Sedimentary rocks

Rig Equipment

  • Hoisting system,
  • Loads: hook, fastline and deadline ,
  • Top Drive Systems
  • Drilling line
  • Ton-Miles Cut & slip practice
  • Mud pump sizing

Drillbits & Hydraulics

  • Drillbits: types & selection.
  • Tricone bits: design and selection procedures
  • PDC bits: design and selection procedures
  • IADC drillbit classification
  • IADC Dull grading
  • Fluid flow in wellbores
  • Bingham Plastic and Power Law calculations
  • Hydraulics calculations
  • ECD calculation
  • Hole cleaning

Drillstring Design

  • Drillstring and BHA
  • Drill pipe, drillcollars, grades of drill pipe and strength properties 
  • Thread types 
  • Tool joints 
  • Calculations of approximate weight of drill pipe and tool joint
  • Drill collar weight and neutral point 
  • Bending strength ratio 
  • Margin of over-pull 
  • Slip crushing 
  • Pressure-area method 
  • Jars 
  • Shock subs 
  • Reamers and stabilizers

Mud Engineering

  • Drilling Fluid Chemistry and Rheology & mud testing methods
  • Functions of Drilling Fluid Additives and Chemicals 
  • Clay Structure and Shale Problems 
  • Loss Control Material 
  • Types of Mud Systems and their Characteristics 
  • Separation equipment & layouts: 

Cementing Technology

  • Cement Chemistry
  • Cement Additives: types & formulations
  • Casing & Cementing Hardware
  • Liners: liner jewellery, liner laps
  • Mud Removal: Chemical and mechanical means
  • Cement Calculations: cement yield, single, two stage, liner
  • Differential pressure
  • Stage Cementing
  • Floating/ Large casing
  • Salt problems

Directional Drilling, Horizontal & ML Wells

  • Declination And Convergence
  • UTM & Grid coordinates
  • Surface and subsurface targets
  • Bottomhole assemblies. Placement of stabilisers.
  • Survey Reference Points
  • Calculations And Wellpath Plotting
  • Surveying Tools And Accuracy

Drilling Operations

  • Well planning
  • Drilling operations : WOB and RPM, drill off tests
  • Drill bit selection optimisation
  • Hydraulics optimisation
  • Casing landing
  • Leak off tests

Hole Problems

  • Lost circulation: causes and diagnosis and cure.
  • Stuck Pipe Diagnosis
  • Differential sticking mechanisms
  • Freeing differentially stuck pipe
  • Pipe freeing agents
  • Reduction of mud hydrostatic pressure
  • Dealing with kicks while freeing  stuck pipe
  • The U-tube method
  • Mechanically stuck pipe mechanisms
  • Shale problems (brittle , reactive and  hard shales)
  • Settled cuttings
  • Ledges and doglegs,  Key seating,  Fractured formations
  • Decision trees : Which pipe sticking mechanism is in my hole?
  • Economics,  Calculations.

Fishing Operations 

  • Fishing operations
  • Fishing economics
  • Free point indicator
  • Explosive charges
  • Torque calculations
  • When to give up

 Advanced Casing Design

  • Steel properties and API casing strengths
  • Fracture gradient: A Rock Mechanics approach
  • Casing seat selection: graphical methods, refinements, case histories
  • Casing design criteria: Collapse , Burst, Tension
  • Detailed Collapse design: partial and full evacuation; when to use each
  • Kick tolerance and kick profiles: industry approach
  • Burst Design: Casing full of gas, limited kick design
  • Detailed tension design: Self weight, shock loading, pressure testing, bending forces, thermal forces, pressure-area method
  • Offshore conductor design
  • Production casing design: tubing leak approach
  • Design factors: typical values; what do they mean
  • Casing design methods for: Exploration , Development, Horizontal and HPHT
  • Triaxial loadings and Von Mises
  • API load lines
  • Stress Ellipse including API load lines
  • Load cases
  • Temperature effects and trapped annular pressures
  • Buckling analysis
  • Sour gas consideration: Special casing grades and effects of temperature, NACE and European standards
  • Connections: API and premium , methods of selection
  • Well suspension and abandonment
  • Casing wear
  • Complete well design
  • QRA approach ( Quantitative risk assessment)

Dr. Rabia wrote his definitive textbook "Fundamentals of Casing Design", over 20 years ago, where he presented the well design method in a structured way. He also showed for the first time how kick tolerance and kick profiles can be used to design wells using a variety of well conditions. Dr. Rabia has since developed and extended most of the ideas presented in the book into a concise and coherent methodology for well design using the latest available technology and many ideas from unpublished work carried out under his supervision.

In his courses, Dr. Rabia uses actual well design examples from wells he planned and drilled over the last 23 years. He is still involved in developing and updating a number of topics including API casing strengths, kick tolerance and kick profiles, collapse design, shock loading and triaxial methodology. With his strong background in Rock Mechanics, he combines this expertise into good effect in showing where best to choose casing seats whilst maintaining either minimum kick tolerance or company policy on kick tolerance.

Indeed, a large number of consultants and some of our competitors still use the original textbook which has of course been updated several times over but the updates have not been published. You can only find out the most updated method of well design by attending our casing design course. No other competitor can match our expertise in this area. A quick glance at the contents of our course and our competitors will clearly show how superior our course is and the depth at which we go into in order to explain the well design process.

 


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