Well Completion and Workover (WCW)

Day 1

• Introduction
• Introduction of individual, professional background, etc.
• Aim / Objective of the course 
• Individual expectation from the course
• Safety Alert
• Starter Quiz & Review
• Introduction to Completion design
• Definition of well completion
• Oil and gas project life cycle
• Types of well completion
• Completion planning 
• Work flow for successful well completion & workover 
• Integrated approach to well completion 
• Concept of Darcy’s Law & SKIN 
• Reservoir Completion:
• Well Performance
• Perforations
• Well Stimulation
• Stimulation of Sandstone reservoir
• Stimulation of Carbonate reservoir

• Introduction to completion design project 

Day 2

• Reservoir Completion: Hydraulic Fracturing 
  
• Class exercise: The objectives of the class exercise on hydraulic fracturing are as follows:
• Calculations on Fold of Increase (FOI) as a screening tool to select wells for hydraulic fracturing candidate.
• Calculations to compare acid frac versus propped frac in a carbonate reservoir
• Sand control stimulation techniques:
• Causes of sand production 
• Sand control design concepts
• Class exercise: The objectives of the class exercise on sand control are as follows:
• Perforation gun selection 
• Perforation cleaning 
• Sand control design selection
• Gravel size selection
• Screen size selection
• Tubing Performance
• Artificial Lift Methods 
• Production Chemistry
• Problem Identification
• Class exercise: The objectives of the class exercise on well problem identification are as follows:
• Calculations on the effect of formation damage on well production
• Calculations on flow efficiency
• Use of production history to assess formation damage 
• Stimulation well candidate selection
• Group work: Completion design project

Day 3

• Tubing Stress Analysis
• Purpose of Stress Analysis 
• Stress Loads: stress/strain, axial loads, burst/collapse and tri-axial analysis 
• Safety Factors and Design Factors 
• Load Cases 
• Completion Equipment and Connections
• Class exercise: The objectives of the class exercise on tubing stress analysis are as follows:
• Basic TSA calculations including weight in air, buoyancy force, axial force due to bending, safety factors, collapse loads, tensile yield, internal yield pressure, etc. 
• Tubing movements and tension calculations during well stimulation
• Materials Selection:
• Metallurgy 
• Corrosion triangle
• Types of corrosion:
• Metallurgy 
• Corrosion triangle
• Types of corrosion:
• Sour corrosion (stress corrosion cracking, sulphide stress cracking, etc.)
• Sweet corrosion, 
• Ggalvanic corrosion
• Erosion-corrosion, etc.,
• Corrosion prevention methods
• Elastomers and Plastics 
• Protective Coatings 
• Material selections for all types of wells: Sour, sweet, HPHT wells, etc
• NACE/ISO on material selection
• Completion Components
• OCTG selections 
• Completion components and selections: Christmas tree, tubing hangers, downhole safety valve, packers, expansion devices, nipples, downhole gauges, etc. 
• Group work: Completion design project

Day 4

• Completion operation base preparation
• Equipment purchasing, manufacturing and factory acceptance 
• Service contracts
• Equipment preparation 
• Technical program 
• Rig preparation and completion installation process
• Operation planning 
• Equipment shipping/transportation 
• Equipment reception
• Pre-job meeting
• Casing cleaning operation
• Running in hole the completion equipment 
• Well clean-up
• Reporting
• After-action review
• Emerging Techniques
• Fiber Optics: Distributed Temperature System (DTS), Pressure/ temperature (P/T), etc
• Intervention-less packers (Hydrostatic packers, swelling packers, etc.)
• In-situ self generating weak acid
• Expandable tubulars
• Expandable Sand Screens (ESS) 
• Sand Control in High angle and long interval: Alternate path technology (SHUTS, CAPS, etc.)
• Formation Isolation Valves (FIV)
• Intelligent & Smart Well 
• Completion: Interval Control Valves (ICV) 
• Underbalanced Drilling & Completion 
• Cased Hole Circulation Drilling & completion
• Multistage Fracturing 
• Group Work: Well completion design

Day 5

• Well Control:
• Well control Equipment:
• Blowout preventer system requirements
• Choke Manifold
• Circulating System 
• Kicks and its causes 
• Well Killing Operations:
• Forward circulation
• Reverse circulation
• Bullheading
• Lubricate and Bleed
• Class exercises on well control
• Workover Operations:
• Workover definition and description
• Workover Types: 
  
• Safety Workover (SWO)
• Long term suspension (LTS)
• Plug and Abandonment (P&A)
• Production enhancement (PE)
• Workover Feasibility Studies
• Group presentation / General Review of the Well completion Design Project
• Wrap up

What is Well Completion and Workover training course objective?

The course is designed to focus on practical applications regarding:

2. Integrate the importance of completion process to future production.

3. Deliver techniques to select the best tubing size and best materials for well completion.

4. Gain practical methods to design, plan and install safe and efficient well completion and workover.

5. Manage well environments with extreme reservoir conditions (pressure, temperature, etc.)

6. Bridge the importance of well design in relation to the ability to carry out well intervention.

7. Explore new technological developments in well completions and workovers.

8. Plan an appropriate intervention and workover strategy to maintain or increase the field production.

9. Gain how to navigate sustainable and responsible oil and gas field development and production amid energy transition.