Real-time leak detection in oil pipelines using an Inverse Transient Analysis model
Title
Real-time leak detection in oil pipelines using an Inverse Transient Analysis model
Subject
Genetic algorithm
Inverse transient analysis
Leak detection
Real-time transient
Description
Based on Inverse Transient Analysis (ITA) method, a real-time leak detection method is proposed to capture leak location and the associated leak rate in oil pipe conveyance systems. In the proposed approach, location and flow rate of leak (if any), the fluid properties, as well as physical parameters of the system, are calculated in consecutive periods through minimizing the discrepancy between the calculated and measured flow parameters of the system. The method of characteristics is employed to numerically calculate the transient responses of the system and the genetic algorithm is utilized as the optimization engine. The proposed approach was applied to several real pipeline systems in which the required transient flow data are either directly collected from the field or fabricated with a third-party numerical software. Extensive numerical explorations were conducted to investigate the performance of the proposed method in real-time leak detection and to determine the extent to which field data errors, stemming from Supervisory Control and Data Acquisition (SCADA) systems and measurement equipment, affect the leak flow rate and location detectability of the proposed approach. The results show that the proposed approach provides promising results under a variety of transient and steady-state flow conditions even in the case with small leak flow rate of around 2% of the line rate. The results also reveal that the noises in the measurement data and the errors originated from SCADA systems do not significantly compromise the leak detectability of the proposed approach, confirming that the proposed approach can be utilized in practice.
104411
70
Creator
Malekpour, Ahmad
She, Yuntong
Publisher
Journal of Loss Prevention in the Process Industries
Date
2021
Type
journalArticle
Identifier
0950-4230
10.1016/j.jlp.2021.104411
URL
https://www.sciencedirect.com/science/article/pii/S0950423021000231
Collection
Citation
Malekpour, Ahmad and She, Yuntong, “Real-time leak detection in oil pipelines using an Inverse Transient Analysis model,” Lamar University Midstream Center Research, accessed May 14, 2024, https://lumc.omeka.net/items/show/26907.