Real-Time Pig Tracking Using a Fibre Optic Pipeline Monitoring System

2014 ◽  
Author(s):  
Richard Espiner ◽  
Alastair Pickburn
Keyword(s):  
Monitoring System ◽  
Operating Experience ◽  
Leak Detection ◽  
Third Party ◽  
Pipeline System ◽  
Fibre Optic ◽  
Well Test ◽  
Optical Technology ◽  
Pipeline Monitoring

The use of fibre optic based monitoring systems is becoming more common for new onshore pipelines. These systems are typically intended to provide leak detection and third party interference surveillance for long lengths of pipeline. Between 2006 and 2008 BP and OneSubsea™ developed the optical technology that provides the basis for a fibre optic pipeline monitoring system (presented in IPC2008-64549). Subsequently BP installed the system on its Khazzan Extended Well Test (EWT) pipeline system in a remote location in Oman. In addition to the originally designed leak detection and third party surveillance capability, operating experience gained by OneSubsea on a variety of pipeline projects has demonstrated the ability of the system to track the movement of pipeline pigs. The monitoring system interface has been upgraded to integrate this additional functionality. The paper describes the capabilities of the fibre optic monitoring system and through a case study illustrates the accuracy and operational benefits of the pig tracking capability.

On Leak Detection of Pipelines Using Computational Pipeline Monitoring

2008 ◽  
Author(s):  
Kamal A. F. Moustafa ◽  
Gamal M. Nawara ◽  
Hesham Elawady ◽  
Mohsen Fouad
Keyword(s):  
Mathematical Model ◽  
Leak Detection ◽  
Normal Operation ◽  
Pipeline System ◽  
Computational Pipeline ◽  
State Variables ◽  
Monitoring Method ◽  
Detection Scheme ◽  
Pipeline Systems ◽  
Pipeline Monitoring

The unintentional release of fluid from pipelines is considered as a leak. Leaks contribute to the environmental pollution, promote corrosion and equipment failures and produce instabilities in the pipeline operation and control. There is a need, therefore, to develop an effective leak diagnosis scheme in pipeline systems that can detect the occurrence of any leak in the system. One objective of this paper is to develop a mathematical model that accounts for the behavior of pressure and flow-rate profiles in pipeline systems with multi leaks. Such a mathematical model is needed to better understand the dynamic behavior of the pipeline and its characteristics and for the detection the leaks. The paper also involves computer simulation of pipeline conditions using the developed mathematical model. A leak detection scheme is developed that is based on a computational pipeline monitoring method. This method evaluates the mismatch between the actual variables and those of the healthy pipeline system. The pipeline conditions during normal operation were simulated and the system state variables were computed in real time based on simulated measurements collected at few selected locations along the pipeline. The underlying pipeline variables are estimated by applying Kalman filtering technique.

An Effective and Proven Technique for Continuous Detection and Location of Third Party Interference Along Pipelines

2002 ◽  
Author(s):  
D. Jaffrey ◽  
J. Lubbers ◽  
B. King ◽  
E. E. Tapanes
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Detection System ◽  
Cost Effective ◽  
Third Party ◽  
Full Time ◽  
Fibre Optic ◽  
Integrity Monitoring ◽  
Combined Features ◽  
Potential Benefits

The potential benefits of deploying an effective integrity monitoring system on pipelines are well understood. FFT has just released a significant/new, cost-effective third party interference (TPI) detection system specifically designed for the pipeline industry. It employs patented fibre optic sensors and propriety software to give real-time, full-time protection against all forms of third party interference over the whole length of the pipeline. It detects the location of each intrusion event to within 50 m, no matter how long the pipeline is. To our knowledge, there are no other systems available with the combined features of our system.

External Pipeline Leak Detection Based on Fiber Optic Sensing for the Kinosis 12″–16″ and 16″–20″ Pipe-in-Pipe System

2014 ◽  
Author(s):  
Carlos Borda ◽  
Dana DuToit ◽  
Harry Duncan ◽  
Marc Niklès
Keyword(s):  
Monitoring System ◽  
Fiber Optic ◽  
Early Stage ◽  
Leak Detection ◽  
Environmental Damage ◽  
Feed Water ◽  
Pipeline System ◽  
Distributed Monitoring ◽  
Pipe System ◽  
Fiber Optic Sensing

The concern of the pipeline industry and general population for a safe and green environment is higher than ever. This highlights the need for efficient leak detection to prevent environmental catastrophes and operational disruption. Therefore, accurate techniques to detect and locate very small leaks that could develop into larger leaks are a valuable asset for the construction of key pipelines. External pipeline leak detection systems based on distributed fiber optic sensing emerge as the most appropriate solution for automatic detection and localization of very small leaks. In the case of the Kinosis pipeline system, two 11km Electrically Heat Traced Pipe-In-Pipe (EHTPIP) pipelines have been built between the Nexen Long lake upgrader and Nexen Kinosis SAGD facilities. The fiber optic sensing cable is directly in contact with the EHTPIP external surface. These pipelines carry Produced Emulsion and Boiler Feed Water at temperatures as high as 120°C and 150°C respectively. The fiber optic distributed sensing system provides temperature feedback information to the operator, not only in operation and in case of a leak but also when the Electrical Heat Trace system is turned on; in this case, the monitoring system can detect and locate overheating problems and/or signs of heating failures. In the case of a leak, the outer temperature of the pipeline will increase; this will automatically be detected and monitored by the DITEST temperature monitoring system and will trigger an alarm to the Nexen LONG LAKE upgrader SCADA system for that specific location. Furthermore, the combination of fiber optic distributed monitoring with the PIP technology enables to detect and locate a leak in the inner pipeline at a very early stage, therefore avoiding any environmental damage (the leak is still contained by the outer PIP tube) and giving time to the pipeline operator to plan a sectional replacement.

A Smart Pipeline Monitoring and Emergency Response System Using Web Services

2019 ◽  
Author(s):  
Wadie Chalgham ◽  
Mihai Diaconeasa ◽  
Khalid Elgazzar ◽  
Abdennour Seibi
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Data Visualization ◽  
Emergency Response ◽  
Structural Safety ◽  
Pipeline System ◽  
Statistical Control ◽  
Time Data ◽  
Real Time Data ◽  
Pipeline Monitoring

Abstract The Smart Pipeline Monitoring System introduced in this paper demonstrates a proof-of-concept for replicating a full-scale water pipeline system that is able to monitor the pipeline health and respond to hazard conditions through the use of multiple sensors and a statistical monitoring control strategy. The system aims at mitigating the effects of common sources of damage that occur in pipelines, such as leaks and overheating, by offering real time data visualization and autonomous actions in case of emergencies. The data visualization is provided by a desktop user interface and a mobile application. In the case of a detected anomaly, described by out-of-bounds/out-of-statistical control conditions detected by the sensors, the system is programmed to shut off its pump and alert the supervisors by SMS instantly. The proposed monitoring system will enhance remote pipeline monitoring and structural safety by offering real-time data and automatic emergency response capabilities. Our experimental results and prototype implementation show that the proposed system effectively detects anomaly conditions under various realistic scenarios and takes necessary safety measures to prevent further damages.

Disposable Fibre Optic Intervention System: Case Study of Successful Leak Detection Offshore North Sea

2021 ◽  
Author(s):  
Craig Feherty ◽  
Andrew Garioch ◽  
Annabel Green
Keyword(s):  
North Sea ◽  
Single Mode ◽  
Cost Effective ◽  
Leak Detection ◽  
Fibre Optic ◽  
Distributed Temperature Sensing ◽  
The North ◽  
First Case ◽  
Well Data

Abstract Maintaining well integrity is critical to sustaining production from mature and aging fields. Disposable fibre optic technology has been deployed in wells in the North Sea to locate known tubing leaks in the completion. The disposable fibre optic intervention system releases a probe into the well to enable the deployment of bare fibre optic line. The fibres are released from the probe as it descends into the well. In the presented case study, the probe contained both single-mode and multi-mode fibre optic lines to enable simultaneous Distributed Temperature Sensing (DTS) and Distributed Acoustic Sensing (DAS) surveys to be performed. Once deployed in the well, pressure manipulation programs were performed to activate any tubing or casing leaks while acquiring DTS and DAS data. As a result of the exceptional sensitivity of the bare fibres and the effective coupling of the fibre with the tubing wall the technology is shown to be highly effective in detecting leaks and confirming barrier integrity. In the presented example a leak was located along with the direction and rate of the fluid movement in the ‘B’ annulus. The simplicity of the system and highly efficient operations greatly reduced survey times in comparison to conventional intervention techniques thereby greatly reducing the cost of intervention. It can be demonstrated that the disposable fibre optic deployment system provides a game changing and cost-effective solution for both leak detection and determining liquid levels in the wells. The disposable fibre solution is a unique deployment method which provides an alternative to conventional well surveys, reducing the complexity, time and cost to acquire valuable distributed well data. This is the first case history published for this technology in leak detection application.

scholarly journals A Case Study of a Negotiated Tender within a Small-to-Medium Construction Contractor: Modelling Project Cost Variance

Buildings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 260
Author(s):  
James Ellis ◽  
David John Edwards ◽  
Wellington Didibhuku Thwala ◽  
Obuks Ejohwomu ◽  
Ernest Effah Ameyaw ◽  
...  
Keyword(s):  
Construction Industry ◽  
Study Data ◽  
Review Literature ◽  
Third Party ◽  
Open Book ◽  
Competitive Tendering ◽  
Construction Contractor ◽  
The Uk ◽  
Insight Into

This research explores the failure of competitively tendered projects in the UK construction industry to procure the most suited contractor(s) to conduct the works. Such work may have equal relevance for other developed nations globally. This research seeks to teach clients and their representatives that “lowest price” does not mean “best value”, by presenting a case study of a successfully negotiated tender undertaken by a small-to-medium enterprise (SME) contractor; SME studies are relatively scant in academic literature. By applying the “lessons learnt” principle, this study seeks to improve future practice through the development of a novel alternative procurement option (i.e., negotiation). A mixed philosophical stance combining interpretivism and pragmatism was used—interpretivism to critically review literature in order to form the basis of inductive research to discuss negotiation as a viable procurement route, and pragmatism to analyse perceptions of tendering and procurement. The methods used follow a three-stage waterfall process including: (1) literature review and pilot study; (2) quantitative analysis of case study data; and (3) qualitative data collection via a focus group. Our research underscores the need to advise clients and their representatives of the importance of understanding the scope of works allowed within a tender submission before discounting it based solely on price. In addition, we highlight the failings of competitive tendering, which results in increased costs and project duration once the works commence on site. These findings provide new contemporary insight into procurement and tendering in the construction industry, with emphasis on SME contractors, existing relationships, and open-book negotiation. This research illustrates the adverse effects of early cost estimates produced without first securing a true understanding of project buildability and programming. Our work concludes with a novel insight into an alternative procurement option that involves early SME contractor involvement in an open-book environment, without the need for a third-party cost control.

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