Operating Practices Change In The High-Pressure World Of Class 900 Pipelines

摘要

Higher demand for gas, continuing challenges facing LNG importation into North America and challenges in getting permits for new pipeline rights of way are trends that meet in an imperative to try to get more capacity out of existing corridors. In some cases, powering-up lines can add capacity; so can adding more lines beside those there now.rnHowever, the most dramatic potential for improvement in gas-carrying capability can be found in installing high-capacity ANSI Class 900 pipelines, which have operating pressures of 2,200 psi. These lines mean more energy transferred per dollar of capital invested. However, it is important to maintain respect for these higher pressures and manage the risks appropriately.rnEven the most experienced pipeline professionals who enter this new world need to be prepared for an additional set of considerations. It's something like the case of an ordinary driver at the wheel of a high-performance car, accustomed to legal speeds along the Interstate, who takes that vehicle to a racetrack and puts the hammer down. Driving skills that were good enough for 60 mph can be inadequate and even life-threatening at 160.