After several decades developed of structural integrity technology, a lot of theories of structural integrity have formed. These theories are widely used in the industrial fields of nuclear industry, construction, machinery and equipment manufacturing, but in the field of the safety assessment of the oil-gas storage and transportation system is still in the stage which has just started. This paper present some prospects which the application of structural integrity technology in the safety assessment of the oil-gas storage and transportation systems: Pipeline Integrity Management, safety assessment of a large storage tank, compressor reliability analysis of high-pressure gas pipeline, Evaluate the structural stability of large Pipe Bridge, Evaluate the safety of offshore pipeline. And explore the application steps of reliability and stochastic finite element analysis theory in the design, maintenance, monitoring, and other aspects. The research directions of the structural integrity assessment of oil-gas pipeline systems have been pointed out. Use structural integrity technology to promote the safe evaluation method of oil-gas storage and transportation system developed in the direction of quantitative. And to reduce subjectivity of the current methods of semi-quantitative assessment, with the greatest possible to avoid human subjectivity; Meanwhile constructing new safety assessment system of oil-gas storage and transportation system, will improve the level of oil-gas storage and transportation system’s integrity management.
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