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Universidade Federal De Santa Catarina Centro Tecnológico Pós-graduação Em Engenharia Mecânica
| Content Provider | Semantic Scholar |
|---|---|
| Author | Benedet, Mauro Eduardo |
| Copyright Year | 2013 |
| Abstract | The knowledge of real operation conditions of pipelines for transporting oil and gas is of fundamental economic and social importance. The leakage of these products, in addition to the financial losses associated with pipe repair and product waste, represents serious consequences for the affected area. The monitoring of pipelines strains is one of the most used methods for preventing these faults. Moreover, the monitoring of its tilting can also indicate that the pipeline has suffered, or is suffering, mechanical stresses that can damage its integrity. For this reason, it is of great interest the measurement of these quantities, inside and outside the duct. A large part of the pipeline used for transportation is buried or submerged. This fact complicates the continuous access of several points on the outside of the pipe, considered critical in terms of its integrity. However, there are devices, known as PIGs, (Pipeline Inspection Gauges) able to scroll through the inside of the pipes, performing cleaning, product separation or measurements. In this context, this work proposes a novel approach of wireless communication, in movement, through metal walls, between the transducers installed on the outside of the pipeline and the PIG. For this purpose, it was studied the main technologies used in wireless communications, considering the difficulties inherent of the Faraday cage effect, caused by the steel walls of the pipe. Studies were performed to demonstrate the advantages and limitations of the use of radiofrequency and ultrasound for communication through metal walls. For communication with ultrasound, a test bench was developed and specific transducers, called EMATs (Electromagnetic Acoustic Transducers) were developed and evaluated. The results obtained with this work serve not only for application in oil and gas pipelines, but also for other applications where there is a need for communication through metal walls. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://e322afea-907e-4cc4-a2a4-69e07402cce8.filesusr.com/ugd/927a2a_c627f62f5ab34f19af81fef5ab877806.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
