Fibre Optic Four Mode Leak Detection for Gas, Liquids and Multiphase Products

Worsley, Jerry; Minto, Chris; Hill, David J. T.; Godfrey, Alastair; Ashdown, James

doi:10.2118/171824-ms

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…Optasense and Silixa in the UK are the first companies to conduct DAS research internationally [ 51 ].…”

Section: Research Progress Of Das Technologymentioning

confidence: 99%

“…Good adaptability to the environment: the strong adaptability of the optical fiber to harsh environments makes its maintenance cost low [50]. In addition, optical fiber does not need a separate power supply to achieve multiple repeated monitoring; Optasense and Silixa in the UK are the first companies to conduct DAS research internationally [51].…”

Section: Development Status Of Das Technology At Home and Abroadmentioning

confidence: 99%

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Overview of Health-Monitoring Technology for Long-Distance Transportation Pipeline and Progress in DAS Technology Application

Wu,

Gao,

Chai

et al. 2024

Sensors

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There are various health issues associated with the different stages of long-distance pipeline transportation. These issues pose potential risks to environmental pollution, resource waste, and the safety of human life and property. It is essential to have real-time knowledge of the overall health status of pipelines throughout their entire lifecycle. This article investigates various health-monitoring technologies for long-distance pipelines, providing references for addressing potential safety issues that may arise during long-term transportation. This review summarizes the factors and characteristics that affect pipeline health from the perspective of pipeline structure health. It introduces the principles of major pipeline health-monitoring technologies and their respective advantages and disadvantages. The review also focuses on the application of Distributed Acoustic Sensing (DAS) technology, specifically time and space continuous monitoring technology, in the field of pipeline structure health monitoring. This paper discusses the process of commercialization development of DAS technology, the main research progress in the experimental field, and the open research issues. DAS technology has broad application prospects in the field of long-distance transportation pipeline health monitoring.

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“…Optasense and Silixa in the UK are the first companies to conduct DAS research internationally [ 51 ].…”

Section: Research Progress Of Das Technologymentioning

confidence: 99%

Section: Development Status Of Das Technology At Home and Abroadmentioning

confidence: 99%

Overview of Health-Monitoring Technology for Long-Distance Transportation Pipeline and Progress in DAS Technology Application

Wu,

Gao,

Chai

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…Due to their application, marine risers are usually insulated to resist seabed temperatures. Different researchers have presented different studies on monitoring of marine risers, such as fatigue monitoring using shape-sensing devices [53,[66][67][68][69], fibre-optic monitoring [54,[70][71][72][73], intelligent systems [74][75][76], optical sensing [51,[77][78][79][80][81], Riser Integrity Management (RIM) [82,83], flexible pipe integrity assurance [36,69,84], pipeline condition monitoring [85][86][87], vibration monitoring for armour failure [63,67,68,86], pipeline surveillance monitoring [88], and leak detection systems [76,86,[89][90][91].…”

Section: Composites For Marine Risersmentioning

confidence: 99%

Guidelines on Composite Flexible Risers: Monitoring Techniques and Design Approaches

et al. 2022

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The increasing energy demand has led to more explorations in the oil and gas industry. To achieve this, marine risers and pipelines are used to convey fluid and other resources to meet the increasing demand. In recent years, hybrid flexible composite risers have become more adaptable. Flexible risers have already proven to be a popular riser solution for various floating production systems in shallow to deepwater in many parts of the world due to their good dynamic behaviour and dependability. The hybrid flexible composite riser is made up of numerous layers of plastics, flexible pipes, composites, and steel. Some innovative monitoring methods, such as Fiber Optics Bragg Gratings (FBG), are based on a clamped composite structure with embedded optical fibre. This study presents characteristics of the monitoring techniques of composite flexible riser technology. The advantages of the monitoring techniques include aiding composite riser measurements, recording data from riser deformation, improving integrity assurance, and dependability of design from stable readings. It also proposes some design approaches as guidelines that are advised, with some policy implications.

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“…al. [13] have used a combination of leak-associated phenomena, including temperature gradients and changes in the surrounding soil, to detect leaks in multi-phase flows in pipelines with a DAS (distributed acoustic sensing) system. Hussels et.…”

Section: Introductionmentioning

confidence: 99%

Gas pipeline leak noise measurements using optical fibre distributed acoustic sensing

Muggleton

Hunt²,

Rustighi

et al. 2020

Journal of Natural Gas Science and Engineering

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Leakage from pipes is a major issue in both the oil and gas sectors, not only in environmental and economic terms, because of wasting important natural resources, but importantly from a safety perspective. Optical fibre technology offers the possibility of continuous acoustic monitoring of pipelines and remote detection of leaks. In this paper we present results from gas leak measurements made on a specially designed, buried pipeline test rig, for which leak energy radiated directly from the leak (orifice noise) dominates over energy radiated from the pipe wall. Measurements of the orifice noise are made using an optical fibre distributed acoustic sensing system as well as conventional geophones. Both the geophones and the optical fibres are shown to be able to detect the orifice noise, particularly when the fibres were located close to the pipeline. Fibre measurements are found to be limited by both high background noise and by gauge length, which limited the upper frequency limit for accurately determining the phase of the ground response. The measurements indicate that the orifice noise sets up Rayleigh waves in the ground, largely contained in frequencies below 100Hz, the magnitude of which are found to be compatible with predictions from idealised jet theory.The effect of fibre ducting and armouring is also evaluated.

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Fibre Optic Four Mode Leak Detection for Gas, Liquids and Multiphase Products

Cited by 11 publications

References 2 publications

Overview of Health-Monitoring Technology for Long-Distance Transportation Pipeline and Progress in DAS Technology Application

Overview of Health-Monitoring Technology for Long-Distance Transportation Pipeline and Progress in DAS Technology Application

Guidelines on Composite Flexible Risers: Monitoring Techniques and Design Approaches

Gas pipeline leak noise measurements using optical fibre distributed acoustic sensing

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