• Well planning overview
• History and source of petroleum
• Multi-level interdependency of the Petroleum Industry
• Drilling rig systems, their purpose and use
• Principles of the drilling process, fishing, casing and cementing
• Knowledge and ability in the principles of directional drilling
• Knowledge and ability in the principles of well control and blowout prevention
• Differences between onshore and offshore drilling rigs and drilling practices
• How established drilling practices interface with modern tools and technology
• The causes and prevention practices concerning lost circulation, stuck pipe
Day 1
1. Introduction, Terminology, Drilling Context
• Introductions
• A bit of oil history – Terminology of Petroleum & of Drilling
• Drilling planning overview
• Oil prices & drilling
• Major drilling accomplishments & challenges
QUIZ: pre – assessment of knowledge level on BDT
2. Essentials of Geology
• Hydrocarbon formation
• Key elements of economic reservoir, rocks, traps, seals
• Geological and geophysical information
VIDEO-1: Origins of Petroleum
3. Drilling Rigs & Drilling Systems
• Onshore – Offshore rigs characteristics
• Drilling challenges
• Rig components – Well classification
• Power – Hoisting system
• Circulation system / pumps
• Control system / BOPs
• Monitoring system
VIDEO-2: Drilling Rigs
4. Drilling Costs
• Drilling cost estimation – Types of costs
• Acquisition For Expenditure (AFE)
QUIZ – Test your knowledge on today’s lectures
Day 2
1. Drilling Fluids & Drilling hydraulics
• Drilling fluid types – Uses
• Fluid properties – additives
• Rheology of drilling fluids
• Static / dynamic conditions / circulation
• Rheological models, pressure losses
• Bit hydraulics
• Cuttings transport issues
EXERCISE: Determine drilling fluid density
CASE STUDY: Basics of drilling fluid design
2. Abnormal Pressures, Kicks & Kick Control
• Sedimentary rocks – Overpressure generation
• Pore pressure / Fracture pressure estimation
• Kick definition / Kick sequence
• Control methods, BOPs (video)
• Kick detection
VIDEO-3: Kicks & kick control
EXERCISE: Kick control example
3. Casing Design
• Purpose of casing design
• Casing / hole diameter selection
• Burst / Collapse pressure calculations
• Casing depth estimation
• Mud weight estimation
4. Cementing & Cement Job Design
• Cementing process
• Cements & types of cements, additives
• Cement placement / Cementing problems
• Cement job evaluation
EXERCISE: Cement slurry density & yield calculation
Day 3
1. The drill string
• Drill string components
• Drilling bits
• Bit wear / Bit selection
• Drill collars, characteristics & selection
• Drill pipe characteristics
• Bottom Hole Assembly
2. Directional & Horizontal Drilling
• Purpose, history & types of deviated wells
• Inclination & azimuth
• MWD
• Horizontal / ERD wells
• Multilaterals
• Coil-Tubing-Drilling
VIDEO-4: Directional Drilling
3. Well Logging & Completions
• Logging
• Mud Log
• Open hole logs
• RFT, Drill stem testing
• Basic components & function of completions
• Stimulation
4. Drilling Problems & Advanced Techniques
• Types of drilling problems, severity
• Lost circulation – Stuck pipe – Junk in hole
• Surface / downhole measurements / problem prevention
• Managed Pressure Drilling / Casing Drilling / Dual Gradient Drilling
VIDEO-5: Managed Pressure Drilling
CASE STUDY: Lost Circulation Problem, identification & solution
FINAL QUIZ : post-assessment of knowledge level on BDT
The aim of this short course training is to provide a basic knowledge of the theoretical and practical aspects of drilling operations.
At the end of this course participants will be able to:
• Understand hydrocarbon formation
• Describe key characteristics of hydrocarbon reservoir (rock, source, tap, seal)
• Have idea about upstream and downstream petroleum industry
• Identify different rig types
• Learn different components of drilling rig and understand their basic functions
• Have basic understanding of downhole wellbore pressures and the means to control them
• Learn the principles of drilling, cementing, casing processes
• Learn the principles of well control and blowout prevention
• Understand basic functions of drilling fluids and cement
• List differences between onshore and offshore drilling processes
• Describe the basic principles of logging and MWD/LWD
• Describe the methods of drilling deviated and horizontal wells
• Have an understanding of the components and functions of well completion (valves, artificial lift, sand control)