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Abstract

Industrial pipelines must be inspected to detect typical failures, such as obstructions and deformations, during their lifetime. In the petroleum industry, the most used non-destructive technique to inspect buried pipelines is pigging. This technique consists of launching a Pipeline Inspection Gauge (PIG) inside the pipeline, which is driven by the pressure differential produced by fluid flow. The purpose of this work is to study the application of artificial neural networks to calculate the PIG&rsquo

s velocity based on the pressure differential. We launch a prototype PIG inside a testing pipeline, where this PIG gathers velocity data from an odometer-based system, while a supervisory system gathers pressure data from the testing pipeline. Then we train a Multilayer Perceptron (MLP) and a Nonlinear Autoregressive Network with eXogenous Inputs (NARX) network with the gathered data to predict velocity. The results suggest it is possible to use a neural network to model the PIG&rsquo

s velocity from pressure differential measurements. Our method is a new approach to the typical speed measurements based only on odometer, since the odometer is prone to fail and present poor results under some circumstances. Moreover, it can be used to provide redundancy, improving reliability of data obtained during the test.

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Original document

The different versions of the original document can be found in:

https://doaj.org/toc/1424-8220 under the license cc-by
http://dx.doi.org/10.3390/s18093072
https://dblp.uni-trier.de/db/journals/sensors/sensors18.html#AraujoFLSNM18,
https://academic.microsoft.com/#/detail/2891849696 under the license https://creativecommons.org/licenses/by/4.0/
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Document information

Published on 01/01/2018

Volume 2018, 2018
DOI: 10.3390/s18093072
Licence: Other

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