Experience of using a fibre optic pipeline monitoring system in a remote desert environment

2014 ◽  
Author(s):  
Richard Espiner ◽  
Alastair Pickburn ◽  
Gerald Smith
Author(s):  
Richard Espiner ◽  
Alastair Pickburn

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.


Due to the recent advancements in the fields of Micro Electromechanical Sensors (MEMS), communication, and operating systems, wireless remote monitoring methods became easy to build and low cost option compared to the conventional methods such as wired cameras and vehicle patrols. Pipeline Monitoring Systems (PMS) benefit the most of such wireless remote monitoring since each pipeline would span for long distances up to hundreds of kilometers. However, precise monitoring requires moving large amounts of data between sensor nodes and base station for processing which require high bandwidth communication protocol. To overcome this problem, In-Situ processing can be practiced by processing the collected data locally at each node instead of the base station. This Paper presents the design and implementation of In-situ pipeline monitoring system for locating damaging activities based on wireless sensor network. The system built upon a WSN of several nodes. Each node contains high computational 1.2GHz Quad-Core ARM Cortex-A53 (64Bit) processor for In-Situ data processing and equipped in 3-axis accelerometer. The proposed system was tested on pipelines in Al-Mussaib gas turbine power plant. During test knocking events are applied at several distances relative to the nodes locations. Data collected at each node are filtered and processed locally in real time in each two adjacent nodes. The results of the estimation is then sent to the supervisor at base-station for display. The results show the proposed system ability to estimate the location of knocking event.


Author(s):  
Aibinu M A ◽  
Ojo J A ◽  
Oke A O ◽  
Bala J A ◽  
Solomon I D ◽  
...  

2010 ◽  
Author(s):  
Jan Langhammer ◽  
Morten Eriksrud ◽  
Hilde Nakstad

Author(s):  
Nezih Mrad

The increased requirement to operate military platforms and aerospace structures beyond their designed life imposes heavy maintenance and inspection burden on aircraft operators and owners. In-service structural health monitoring is potentially a cost-effective approach by which service usage information can be obtained and knowledgeable decisions can be made. Advanced sensor technology, such as optical fibres, are expected to provide existing and future aircraft with added intelligence and functionality, reduced weight and cost, enhanced robustness and performance. This paper furthers the understanding of technical and practical issues related to full implementation of a fibre optic sensor based structural health monitoring system for aerospace and military platforms. It also reports experimental findings on the use of fibre Bragg grating sensors for measurement of parameters relevant to aircraft structural monitoring and smart structures; with an emphasis on the suitability of multifunctional fibre optic sensor system. Experimental evaluations revealed that Bragg grating sensors correlate well with conventional sensors technology for temperature, stain, crack growth and cure monitoring and were insensitive to pressures up to 300 psi. These sensors were determined to have minimum impact on the structural integrity when embedded parallel to host fibres into composite laminates. Recommendations on the implementation and integration of these sensors into a structural health monitoring system are also provided.


Author(s):  
Ishaan Gupta ◽  
Srivathsan Chakaravarthi Narasimman ◽  
Ravula Sugunakar Reddy ◽  
Justin Dauwels ◽  
Abhisek Ukil

1991 ◽  
Author(s):  
B. Bjornstad ◽  
T. Kvisteroy ◽  
M. Eriksrud

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