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Title: Field Data Of An E-Rttm Based Leak Detection System
Author: Hilko Den Hollander, Berthold Bollermann, Gerhard Geiger
Source: 2007 South East Asia Flow Measurement Conference
Year Published: 2007
Abstract: Numerous pipeline leak detection and localisation systems are available today, varying from low-end volume balance to high-end RTTM (Real Time Transient Modelling). Despite that pipeline leak detection plays an important role in safe pipeline operation, legislation and methods to compare the different systems are still limited. In Germany pipeline leak detection is goverend by law in the TRFL (Technical Rules for Pipelines). The American Petroleum Institutes API 1130 describes Computational Pipeline Monitoring for Liquid Pipelines and API 1155 provides a method to compare the various systems. To get a better understanding of the capabilities of modern leak detection systems, this document describes two case studies. One study refers to a gas pipeline and focuses on leak detection under transient conditions and subsequent detection times. The second study refers to a (multi-product) liquid pipeline and focuses on leak localisation and leak rate calculation. KROHNEs PipePatrol E-RTTM (Extended Real Time Transient Modelling) has been installed on both pipelines and the systems were tested by leak trials which are described in the case studies. The paper starts with a brief introduction into E-RTTM based leak detection system, which forms the basis for the case studies.

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