Using vertical upset method to design for lateral buckling in HP/HT pipelines

摘要

A strain-based design strategy for high-pressure/high-temperature (HP/HT) pipelines incorporates mitigation techniques such as a pipelay over vertical buckle triggers (sleepers). The pipeline is designed to buckle laterally on sleepers to accommodate thermal expansion and to overcome soil uncertainties. Sleeper considers total strain in the pipe wall, pipeline route, and uncertainties in design data. Based on DNV-OS-F101 code and using available information, SLT-Engineering developed a simplified way to address the design of safe HP/HT pipelines.