Advanced Drilling Engineering & Operations
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:
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
Casing Design
- Steel properties and API casing strength,
- Casing seat selection
- Casing design criteria
- Casing loadings and safety factors
- Casing design methods for: Exploration, Development, Horizontal and HPHT wells
- Kick Tolerance, Kick profiles,
- Triaxial Stress Ellipse
- Temperature effects and trapped annular pressures
- Sour gas consideration
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
