Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis

In sub-surface drilling rigs, one key critical crisis is unwanted influx into the borehole as a result of increasing the influx rate while drilling deeper into a high-pressure gas formation. Although established risk assessments in drilling rigs provide a high degree of protection, uncertainty arise...

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Main Authors: Siamak Tavakoli, Stefan Poslad, Rudolf Fruhwirth, Martin Winter, Herwig Zeiner
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/9/4292
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author Siamak Tavakoli
Stefan Poslad
Rudolf Fruhwirth
Martin Winter
Herwig Zeiner
author_facet Siamak Tavakoli
Stefan Poslad
Rudolf Fruhwirth
Martin Winter
Herwig Zeiner
author_sort Siamak Tavakoli
collection DOAJ
description In sub-surface drilling rigs, one key critical crisis is unwanted influx into the borehole as a result of increasing the influx rate while drilling deeper into a high-pressure gas formation. Although established risk assessments in drilling rigs provide a high degree of protection, uncertainty arises due to the behavior of the formation being drilled into, which may cause crucial situations at the rig. To overcome such uncertainties, real-time sensor measurements are used to predict, and thus prevent, such crises. In addition, new understandings of the effective events were derived from raw data. In order to avoid the computational overhead of input feature analysis that hinders time-critical prediction, EventTracker sensitivity analysis, an incremental method that can support dimensionality reduction, was applied to real-world data from 1600 features per each of the 4 wells as input and 6 time series per each of the 4 wells as output. The resulting significant input series were then introduced to two classification methods: Random Forest Classifier and Neural Networks. Performance of the EventTracker method was understood correlated with a conventional manual method that incorporated expert knowledge. More importantly, the outcome of a Neural Network Classifier was improved by reducing the number of inputs according to the results of the EventTracker feature selection. Most important of all, the generation of results of the EventTracker method took fractions of milliseconds that left plenty of time before the next bunch of data samples.
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spelling doaj.art-4e619430c3a74c3cac31e4250b274cae2023-11-17T23:42:21ZengMDPI AGSensors1424-82202023-04-01239429210.3390/s23094292Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity AnalysisSiamak Tavakoli0Stefan Poslad1Rudolf Fruhwirth2Martin Winter3Herwig Zeiner4Computer Science Department, Maharishi International University, Fairfield, IA 52557, USASchool of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, UKThonhauser Data Engineering GmbH, 8700 Leoben, AustriaJOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, AustriaJOANNEUM RESEARCH Forschungsgesellschaft mbH, 8010 Graz, AustriaIn sub-surface drilling rigs, one key critical crisis is unwanted influx into the borehole as a result of increasing the influx rate while drilling deeper into a high-pressure gas formation. Although established risk assessments in drilling rigs provide a high degree of protection, uncertainty arises due to the behavior of the formation being drilled into, which may cause crucial situations at the rig. To overcome such uncertainties, real-time sensor measurements are used to predict, and thus prevent, such crises. In addition, new understandings of the effective events were derived from raw data. In order to avoid the computational overhead of input feature analysis that hinders time-critical prediction, EventTracker sensitivity analysis, an incremental method that can support dimensionality reduction, was applied to real-world data from 1600 features per each of the 4 wells as input and 6 time series per each of the 4 wells as output. The resulting significant input series were then introduced to two classification methods: Random Forest Classifier and Neural Networks. Performance of the EventTracker method was understood correlated with a conventional manual method that incorporated expert knowledge. More importantly, the outcome of a Neural Network Classifier was improved by reducing the number of inputs according to the results of the EventTracker feature selection. Most important of all, the generation of results of the EventTracker method took fractions of milliseconds that left plenty of time before the next bunch of data samples.https://www.mdpi.com/1424-8220/23/9/4292drilling disasterfeature selectionforward selectionsensitivity analysisrandom forest classifierneural networks
spellingShingle Siamak Tavakoli
Stefan Poslad
Rudolf Fruhwirth
Martin Winter
Herwig Zeiner
Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
Sensors
drilling disaster
feature selection
forward selection
sensitivity analysis
random forest classifier
neural networks
title Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
title_full Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
title_fullStr Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
title_full_unstemmed Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
title_short Towards Managing Uncertain Geo-Information for Drilling Disasters Using Event Tracking Sensitivity Analysis
title_sort towards managing uncertain geo information for drilling disasters using event tracking sensitivity analysis
topic drilling disaster
feature selection
forward selection
sensitivity analysis
random forest classifier
neural networks
url https://www.mdpi.com/1424-8220/23/9/4292
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