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The current evolution of technologies and rapid development has influenced the pipeline construction all over the world. However, this development can be a risk to the surrounding environment, for example pipeline leakage. There are numerous incidents that caused by pipeline leakage, which includes petroleum pipeline leakage. The petroleum pipeline...
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... collection for GPR survey was performed using grid method. Hence, grid lines were established at the top of the tank as shown in the Fig. 2. Grid method consists of two scans which are longitudinal and transversal scan lines. Adoption of grid method for GPR survey is more systematic and as data was scanned along the designated lines at constant interval. Besides, a grid data can easily be used to create the three dimensional (3D) model. ...
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Citations
The early detection and discovery of small leakages from underground storage tanks (USTs) is an effective means for preventing the spread of contamination to deep soil and groundwater, which is of great significance to the process safety and risk management of oil tanks. In the previous studies, the soil sample collecting by these boreholes near the oil tank, the detection results have a certain degree of randomness and non-timeliness due to the sampling affected by the distribution of the boreholes, which would result in failure to catch small leakages of UST in time. According to capacitance sensor having a sensible capacity for relative permittivity of the soil, we propose a new small leakage detection method that employs the full-coverage three-dimensional capacitance array sensor with optimized parameters and higher sensitivity and our established measurement function of oil leakage to realize early detection of small leakage. Such a method can effectively solve the problems of incomplete sampling and easy to miss small leaks in borehole sampling detection. In addition, the experimental results show that the absolute error is less than 0.110% when selecting the small oil leakage in the range of 0.068%~3.261%. Therefore, our method has higher measurement accuracy and could offer an efficient way for early discovery and quantitative estimation of small oil leakages from UST, which would provide a reliable basis for process safety and risk prediction.
The oil and gas industry owns expensive and widely-spread assets. Any fault in this complex transportation network may result in accidents and/or huge losses thereby triggering various environmental and economic issues. Thus, real-time monitoring and preemptive measures based on fault propagation analysis limit some of these consequences. This paper presents a comprehensive review of the techniques used for monitoring and fault detection of oil pipelines. The pros and cons of the most common techniques are mentioned along with a review of the recently reported literature. It is anticipated that wider dissemination of the recent developments in pipelines monitoring and inspection will reform the oil sector from the perspectives of surveillance, security, inspection and emergency response.
