Casing design is a set of worst-case checks. Each string is checked against the most severe burst, collapse and axial load it could credibly see, with a design factor applied. The engineering lies in defining what is credible: the kick that must be contained, the losses that could empty the string, the temperature change during stimulation, the pressure behind the casing during production.

Setting depths come first and constrain everything else. Each string must be set deep enough that the shoe can contain the pressure of a kick taken in the next section, and shallow enough that the mud weight needed below it does not fracture the shoe. Where the pressure profile is uncertain, contingency strings and the hole sizes to run them must be planned from the start.

The common errors are predictable: load cases that omit a credible scenario, design factors applied inconsistently, connections rated below the pipe body and assumed adequate, grades chosen without checking sour service limits, and wear allowance ignored in wells with long rotating hours through casing. This course covers the checks that catch them.

By the end of this training, participants will be able to:

• Select casing setting depths from pore pressure, fracture gradient and kick tolerance.
• Select hole and casing size sequences.
• Define credible burst, collapse and axial load cases.
• Calculate burst, collapse and tension requirements for each string.
• Apply design factors consistently.
• Perform biaxial and triaxial design checks.
• Select connections and verify their ratings against the design loads.
• Select materials and grades, including for sour service.
• Apply casing wear allowance and assess wear risk.
• Design liners and select hangers, and document and verify a casing design.

The course is instructor-led. Participants design a complete casing scheme for a well, working through setting depths, load cases and string selection with worked calculations at each stage, then check the result against design criteria. Real design cases, including casing failures and their causes, are used throughout. Participants are encouraged to bring their own designs for discussion.

Organisations sending participants to this training will:

• Produce casing designs that hold up against all credible loads.
• Reduce casing failures and the integrity problems they cause.
• Apply design criteria and factors consistently across wells.
• Improve design verification and documentation.
• Support cost reduction by avoiding unnecessary over-specification.

Participants will:

• Be able to design a casing scheme from first principles.
• Be able to define and calculate load cases.
• Understand connection, material and grade selection.
• Understand wear, buckling and temperature effects on casing.
• Be able to review and verify casing designs.

• Drilling and well engineers
• Completion engineers
• Well integrity engineers
• Technical authorities reviewing well designs
• Operations engineers involved in well design
• Graduate engineers in well engineering

Upon successful completion of this training course, delegates will be awarded an official Certificate of Completion issued by the Petroleum Engineers Association (PEA), an ISO 9001:2015 certified training organization. The certificate carries 10 Credits and formally records the total learning hours completed.

Each certificate is signed by the Course Facilitator and the CEO of the Petroleum Engineers Association, and serves as verifiable proof of professional training that delegates can present to employers and professional bodies worldwide.