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Title: The Use Of Ultrasonic Meters In Pipeline Leak Detection Systems
Author: Thomas Ballard
Source: 2015 European Flow Measurement Workshop: Ultrasonic & Coriolis Metering
Year Published: 2015
Abstract: Volume Balance Essentially Measures Volumetric Flow In / Out of a pipeline section Operates well in Theory - ie . Under steady conditions Very sensitive to transient conditions Sequential Probability Ratio Test (SPRT) Based on Hypothesis testing method to identify leaks using inventory compensated volume balance Calculates the ratio of probability between a leak / no leak situation Identifies leak location and leak size using flow meters and pressure transmitters Can be applied on single and multi - phase lines Negative Pressure Wave Relies on high speed pressure reading (60 Hz) Specialized high speed equipment used for data acquisition Identifies leak when a pressure drop occurs Fast response can detect very small leaks and thefts Cost Effective

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