Research on Acceptable Level of Social Risks in Oil and Gas Pipeline

Pipeline transportation, as a common method of oil and gas transportation in China, is generating economic and social benefits, while inhabiting huge potential risks at the same time. In order to make sure the acceptable level of social risks in oil and gas pipeline, it is extremely necessary to formulate a reasonable and feasible standard for acceptable risks. This essay, on the basis of as-low-as-reasonably-practicable (ALARP) principle, proposes a relation chart between “cumulative death frequency (F)” and “the number of death (N)” - improved F-N curve, which is combined with the risk chart. While drawing the curve, four variables in the risk chart are used to grade the risk level, the oil and gas pipeline related regulations are also considered. The research indicates that, improved F-N curve has a more objective and reasonable drawing process as well as a more accurate acceptable level of social risks. With stronger universality, it is able to be applied to different regions and industries.