Casing and tubing design are integral parts of a drilling engineer’s work scope. This course provides a comprehensive overview of the design process, emphasizing the standard Working Stress Design approach currently used in the industry. Through a combination of lecture and extensive hands-on examples, the fundamentals of casing and tubing design are imparted to the attendees. The standard theories of strength and failure are covered. Estimation of standard as well as special loads is discussed in detail. Connection and materials selection, which complete the design process, are also discussed. The course also introduces advanced theories of strength and failure such as limit-states design and reliability-based design, which are required to design complex wells. Upon completion of this course, successful participants will be able to identify tubular requirements and loads, select appropriate casing points, and design and specify the required casing and tubing strings.

Course Content

• Goals of design

• Types of tubulars

• Casing point selection

• Theories of strength (API/ISO 10400 Tension, API/ISO 10400 Burst, API/ISO 10400 collapse, Von Mises Triaxial design)

• Standard load estimation (for drilling casing, production casing, liners, and tubing)

• Theories of failure (burst, collapse, Von Mises equivalent stress criteria)

• Typical design factors

• Design examples (covering all key loads)

• Review of industry standards

• Design of connections (API and premium connections, ISO 13679 standards)

• Selection of materials based on environment

• Introduction to advanced design methods

Target Audience

Drilling engineers, service personnel involved in developing well plans, and managers interested in learning about the well design process.

Course Deliverables

Students will learn how to:

• Gather required data, and identify the tubular requirements for a well, based on the functional specifications

• Select the casing setting points based on the pore and fracture pressure gradients, as well as other constraints

• Apply the standard Working Stress Design approach to the design and selection of tubulars, built upon an understanding of; The theories of strength; standard and special loads on tubulars; theories of failure and typical design factors applied in Working Stress Design; material selection criteria; connection performance and selection criteria

• Use standards and specifications documents

• Specify the required casing and tubing strings completely and prepare procurement forms.

• Identify situations where advanced theories of strength and failure are required during design

This course is a precursor to Advanced Casing Design.

Please contact training@blade-energy.com for course times and costs.