Modelling Complex Pipeline Network Leak Detection Systems

Abhulimen, Kingsley E.; Susu, Alfred A.

doi:10.1205/psep06069

Cited by 16 publications

(9 citation statements)

References 2 publications

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“…Generally, some Leakage detection technologies include the following methods [16], the volume-mass balance method, the pressure monitoring method with statistical analysis and/or pattern matching, acoustic monitoring method, the transient leakage detection method, etc. However, many methods are hedged in with their shortcomings, which are, long response time, and incidence of false alarm reporting, etc., [1,2]. The transient leakage detection is used to monitor whether pipeline is in a normal state by establishing the accurate pipeline model and utilizing perfect numerical methods [20].…”

Section: Background Of the Studymentioning

confidence: 99%

“…But since the leak considered in the transient model affects only the downstream temperature at the fluid flowing velocity, the equation of the energy conservation has an insignificant contribution to the leak detection [17]. Thus equation 2.11 is neglected and equations 2.6 and 2.8 describe the pipeline flow with a leak precisely and thus can be used to simulate accurately the impact of a leak on pipeline ends parameters [1,2,15,17].…”

Section: Basic Pipeline Modeling Equations For Leak Detection Systemsmentioning

confidence: 99%

“…However, many methods are hedged in with their shortcomings, which are, long response time, and incidence of false alarm reporting, etc. [1,2]. The transient leakage detection is used to monitor whether pipeline is in a normal state by establishing the accurate pipeline model and utilizing perfect numerical methods.…”

Section: Review Of Past Workmentioning

confidence: 99%

See 2 more Smart Citations

Transient Model-Based Leak Detection and Localization Technique for Crude Oil Pipelines: A Case of N.P.D.C, Olomoro

Chuka¹,

Freedom²,

O³

2016

SJEAT

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This work presents the fundamentals and application of transient model-based leak detection and localization technique for crude oil pipelines. The dynamic parameters involved in this model such as pressure, flow and temperature were acquired by SCADA (Supervisory Control and Data Acquisition) system. The characteristic changes in the flowmechanics and thermodynamics along a given length of pipeline were used in detecting, localizing and determining the flow rate of the leak. Measurement of pressure, temperature and flow data at both the inlet and outlet of the pipeline were used in formulating the equations obtained from the inconsistency in the continuity and law of conservation of momentum equations. This model located a leak incident in a horizontal pipeline of length 2000m and diameter 0.3556m carrying Nigeria bonny light crude oil from the Nigeria Petroleum Development Company Limited, Olomoro flowstation into UPS (Ughelli Pump Station) truck line. But the leak located by the model at 1088.12m from the inlet is 11.88m behind the actual leak position of 1100m as discovered during the pipeline leak remedial works.

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Section: Background Of the Studymentioning

confidence: 99%

Section: Basic Pipeline Modeling Equations For Leak Detection Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Transient Model-Based Leak Detection and Localization Technique for Crude Oil Pipelines: A Case of N.P.D.C, Olomoro

Chuka¹,

Freedom²,

O³

2016

SJEAT

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“…Lu et al [ 20 ] treated the water supply pipeline as the signal transmission system and studied the dispersion characteristics of leakage acoustic waves of the water supply pipeline during wave propagation. Abhulimen et al [ 21 ] derived a novel model for detecting leaks in complex pipeline network systems based on the Liapunov stability criteria. Further, they analysed the unsteady state flow matrix of the complex pipeline network system to compute the velocity and pressure for each node and pipeline loop in the complex network.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Propagation and Distribution Characteristics of Leakage Acoustic Waves in Water Supply Pipelines

Zhou

et al. 2021

Sensors

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Leakage detection methods based on the analysis of leakage acoustic signals provide an effective technical approach for detecting small leaks in water supply pipelines. From a technical perspective, the study of the propagation characteristics of acoustic waves generated by the leakage in the water supply pipeline is necessary for detecting the leak location on the basis of acoustic signals. In this study, a 3D transient leakage acoustic wave propagation equation was derived by combining the principles of fluid dynamics and Lighthill acoustic analogy theory. The propagation of the leakage-induced noise in water supply pipeline was modelled theoretically. We simulated the propagation of a leakage acoustic wave under different conditions for different target scenarios encountered in actual pipeline inspections. Specifically, we analysed the effect of different factors, such as the pipe size and acoustic source characteristics, on acoustic propagation. Finally, the simulated experiments were practically performed using a self-designed simulated water supply pipeline and self-developed spherical water supply pipeline detector to validate the simulation analysis. The results of this study provide a theoretical guidance and basis for the analysis of characteristics of leakage acoustic wave signals and the recognition of leakage conditions in water supply pipelines.

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“…However, many methods are hedged in with their shortcomings, which are, long response time, and incidence of false alarm reporting, etc. [7].…”

Section: Introductionmentioning

confidence: 99%

Research on Leakage Detection and Analysis of Leakage Point in the Gas Pipeline System

Yang¹,

Liu²,

Shao³

et al. 2011

OJSST

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Recently, with large-scale use of natural gas and massive constructions of gas pipelines, more and more public concern is focused on pipeline leakage. The leakage caused by holes on gas pipelines generates economic losses to gas companies and causes risks to the environment and sometimes accidents. In order to detect and locate pipeline rupture immediately, the leakage detection method plays a key role in the overall integrity management in the pipeline system. One of the most important applications of transient simulation is dynamic leakage detection. A leakage detection model and the solution were proposed based on the three conservation laws in hydromechanics and the state equation, which includes transient simulation model and volume balance model. Dynamic parameters involved in the model such as pressure, flow and temperature can be acquired through SCADA (Supervisory Control and Data Acquisition) system. By analyzing the factors influencing leakage position, we came to a conclusion that leakage and outlet pressure are more important parameters compared to the coefficient of frictional resistance and pipeline diameter. The more leakage increases, the closer leakage point approaches pipeline outlet. Leakage location is closer to outlet when pipeline outlet pressure becomes bigger. Experiments were also carried out according to leakage percentage.

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Modelling Complex Pipeline Network Leak Detection Systems

Cited by 16 publications

References 2 publications

Transient Model-Based Leak Detection and Localization Technique for Crude Oil Pipelines: A Case of N.P.D.C, Olomoro

Transient Model-Based Leak Detection and Localization Technique for Crude Oil Pipelines: A Case of N.P.D.C, Olomoro

Analysis of Propagation and Distribution Characteristics of Leakage Acoustic Waves in Water Supply Pipelines

Research on Leakage Detection and Analysis of Leakage Point in the Gas Pipeline System

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