Abstract: In view of a study on construction conditions and site selection of catenary anchor leg mooring (CALM) for offshore oil terminal, requirements of environment data and engineering survey for CALM system construction are listed, analysis methods for freight volume and oil tanker tonnage are presented as well. Furthermore, basic principles of site selection and calculation method for the scale and water depth of operation for CALM are described. These experiences can provide reference for similar engineering construction in the near future.

Key words: offshore oil terminal, catenary anchor leg mooring (CALM), oil tanker, engineering site