Calculating an accurate inventory of a product inside a pipeline system is critical to accurately estimating pipeline leak/loss for computational pipeline monitoring and lost and unaccounted methods. This document describes methods to calculate pipeline inventory for systems transporting single phase liquid and gaseous products. Several pitfalls with the current methods and common practices are identified along with enhancements and recommendations.
The enhanced methods identified include methods to better account for transient conditions on gaseous pipelines that are more accurate than steady...
The enhanced methods identified include methods to better account for transient conditions on gaseous pipelines that are more accurate than steady state methods but are simpler to implement than full transient pipeline models and produce nearly the same level of accuracy for single phase products.
The target audience for this document are measurement accounting specialists, supervisory control and data acquisition (SCADA) integrators, and software suppliers of measurement accounting systems, leak detection systems, and SCADA systems