Description
This 2-day course covers the relevant subjects required to understand the structural mechanics of downhole tubular design. Material aspects, connection selection, performance properties, load cases and design factors are just a few of the many topics that are covered. Participants are encouraged to bring in casing designs from the past and present to use as in-class examples for calculation and discussion. A special emphasis on horizontal aspects will be included.
Day 1 - Introduction to Casing Design
- Introduction to Casing & Tubing Design - Instructor and student introductions are made in order to familiarize the instructor with each participant’s background. A casing design overview is provided and the course outline is discussed.
- Objectives
- Method
- Material Aspects - This section takes an in depth look at the material aspects of design. Basic material science concepts are followed by a brief look at ISO 15156.
- Pipe Mechanics
- Sour Service (H2S)
- Casing Loading & Design Considerations - The most common drilling load cases are presented.
- Drilling Casing Load Cases
- Fundamental Design Principles - Load calculation methods for burst and collapse design factors are presented.
- Burst & Collapse
- Burst with Class Exercise
- Collapse with Class Exercise
- Burst & Collapse
Day 2 - Fundamental Design Principles
- Connection Selection - The components of a connection and connection selection techniques are discussed.
- API
- Semi-Premium
- Premium
- Fundamental Design Principles (cont.) – Load calculation methods for the tension, compression, and triaxial design factors are presented.
- Service Life Design Methods
- Buoyancy & Pressure-Area Method
- Tension/Compression with Class Exercise
- Triaxial with Class Exercise
- Service Life Design Methods
- Casing Loading and Design Considerations – The most common production casing load cases are presented with special emphasis on the Casing Frac load case.
- Production Casing Load Cases
- Permian Well Design – A discussion of lessons learned from past Permian well designs.
- Connection Selection
- Rig Practices
- Inventory
- Doglegs
- Torque & Drag