Risk assessment and control of a new high-pressure pipeline in NGL service

The risk assessment and control of a new high-pressure pipeline in NGL service was studied in present paper. From the various F-N plots it can be readily shown that the transportation of ethane by way of the JFP is an acceptable business practice and is consistent with all imposed risk criteria and even the more stringent design parameters. Evacuation zones around pipelines in case of emergency need to be primarily based upon the heat, explosion and missile potential. Our calculations for a 10-inch line suggest that a 10-inch line operating at 100 bar(a) would require a minimum safe distance of 250 in and preferably 400 to or more. The primary purpose is to protect against heat and overpressure effects; this safety distance should also suffice for most pipeline fragments. There cannot be strict rules for missiles, as the potential distance traveled depends on the formed missile's aerodynamic shape.