Abstract: Offshore platforms are equipped with a large number of production equipment and process pipelines. The stress requirements for nozzles of equipment such as compressors,pumps,heat exchangers,and Christmas trees are relatively strict. Combined with the installation project of natural gas compression system equipment and process pipelines on a platform in the western South China Sea,a precise and convenient static analysis and verification method for sensitive equipment nozzles and ancillary pipelines is summarized through the analysis and verification of the stress state of the equipment nozzles and pipelines.

Key words: sensitive equipment, equipment nozzle, process pipeline, stress analysis