February 2018

Presenter: Erik Camarillo - Tenaris

Title of the presentation: Overview of API, Semi-Premium and Premium Connections and the Impact on Casing Design


Erik graduated from Texas A&M University in 2014 with a Bachelor of Science in Industrial Distribution – Worked as a process engineer in the Tenaris Coiled Tubing facility before moving into a role as a technical sales engineer – Worked with operators on the North Slope of Alaska and the Western US, including taking part in the development of a new connection for geothermal applications – Currently supporting the Mid-Continent region in a technical capacity for Tenaris.


Connection selection is an important part of the casing design process. Operators will define their needs based on anticipated well conditions, and manufacturers like Tenaris must demonstrate that their connections meet all requirements in tension, compression, burst, collapse and torsion. Casing connections available in the market can be categorized as API, Semi-Premium and Premium. Connection testing is necessary to qualify a connection for use in a particular application. Organizations like API set forth standards and recommended practices for this testing, however manufacturing companies must work alongside operators to ensure that all field operations are represented in the testing procedure. Additionally, new technologies are being developed constantly, each with their own mechanisms that allow high performance.