Determination of Safe Distance for Sour Gas Pipelines Based on Quantitative Risk Assessment

One of the most important methods of gas transmission is using of pipelines. Regards to that most of gas transmission pipelines is in residential areas, the safety consideration for pipelines is very important. In this study, determination of safe distance for sure gas pipelines has been studied. The case study is a sure gas pipeline in BUSHEHR province. Using PHAST RISK software and regards to quantitative risk assessment, safe distance for this pipeline in four wall thickness has determined and the results showed that effects of 2 millimeter change in wall thickness can change safe distance about 60 meter.