Course Overview

Day-by-Day Outline

Day 1 – Introduction to Casing Design

• - Functions of casing and its role in well integrity
• - Types of casing strings: conductor, surface, intermediate, production, liner
• - Overview of casing design workflow
• - Data requirements: pore pressure, fracture gradients, offset wells
• - Exercise: Identify casing strings in various well profiles

Day 2 – Casing Setting Depth & Hole Section Planning

• - Criteria for setting casing depths
• - Selecting hole sizes for each section
• - Balancing wellbore stability with cost considerations
• - Managing lost circulation and weak formations
• - Workshop: Plan casing points for a multi-section well

Day 3 – Casing Strength Calculations

• - Design factors for burst, collapse, and tension
• - API casing grades and properties
• - Calculating loads from pressure, temperature, and well conditions
• - Safety factors for different well environments (HPHT, deepwater)
• - Exercise: Perform burst, collapse, and tension calculations for casing design

Day 4 – Connections, Accessories & Cementing Considerations

• - Casing connections: threaded, premium, welded
• - Centralizers, scratchers, float equipment
• - Cementing considerations affecting casing design
• - Zonal isolation requirements and cement placement
• - Workshop: Design a casing string with accessories and cement program

Day 5 – Casing Running, Evaluation & Case Studies

• - Casing running best practices and equipment
• - Monitoring and preventing stuck casing incidents
• - Pressure testing and casing integrity evaluation
• - Case studies of casing failures and lessons learned
• - Capstone Project: Develop a complete casing program for a challenging well scenario

Expected Learning Outcomes

•  Design casing programs aligned with well objectives and safety standards
•  Calculate casing strength for burst, collapse, and tensile loads
•  Determine appropriate casing setting depths based on subsurface data
•  Integrate connections, accessories, and cementing into casing design
•  Plan casing running procedures and evaluate casing integrity