The Risk Evaluation Of Transportation On Sea Liquefied Natural Gas By Pipeline

LNG (liquefied natural gas, LNG) has characteristics of big calorific value and higher performance, it can reduce cost and storage space greatly in transportation. Along with the rapid development of China's economy, energy demand will also increase. offshore LNG transportation is one an important part of LNG import project. Along with the development of LNG related fields' technical equipment, some experts and scholar propose the research of offshore LNG piping transportation.Firstly, the author states offshore LNG piping transportation's related concepts and risk evaluation's theory and method in detail, Built the theoretical basis for the research of offshore LNG piping transportation risk evaluation; Secondly, from the five aspects of a third party damage, corrosion, design, incorrect operation and natural environmental influencing, established the offshore LNG piping transportation risk evaluation index system; focus on LNG piping transportation risk evaluation index fuzzy characteristic, introduce Attribute hierarchical analysis method and combine fuzzy comprehensive evaluation method, construct offshore LNG piping transportation assessment model; thirdly, establish a LNG piping transportation risk multi-level index system according to the result of identification that above, applicate attribute hierarchical model to identify the quality of risk factors' weights and using fuzzy comprehensive evaluation method to evaluate the risk severity of a offshore LNG piping transportation project; Finally, on the basis of offshore LNG piping transportation risk analysis and evaluation, combine the example of east offshore natural gas pipeline transport, put forward corresponding risk controlling measure. Discuss offshore LNG piping transportation risk factors can provide reference for our country's industry development.