Abstract
Abstract
This paper describes a novel, IoT-based digital solution for spontaneous leak detection which combines enhanced negative pressure wave (NPW) sensing with advanced signal processing to determine both the presence (∼0.20 - 0.50% of the pipeline cross section) and location of spontaneous leaks in pressurized pipelines within seconds. The solution is appliable to lines carrying any medium (liquid or gas). Possible applications include offshore risers, long-distance transmission lines, gas gathering networks at well sites, and saltwater disposal systems (among others).
The paper provides a description of the solution and outlines the process for its implementation on a jack-up installation in the Gulf of Mexico, where it was used for real-time leak detection on four crude oil risers. The entire system installation and commissioning was completed in one full day offshore. Currently, it is undergoing the "bedding in" process to verify performance. To date, no false positive leak events have been initiated.