Oil in and under Ice Detection using Nuclear Magnetic Resonance
| Autor: | David Palandro, Eiichi Fukushima, Erik D. Demicco, Tim Nedwed, S. A. Altobelli, Mark S. Conradi, Nick Sowko |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | International Oil Spill Conference Proceedings. 2017:1877-1889 |
| ISSN: | 2169-3358 2169-3366 |
| DOI: | 10.7901/2169-3358-2017.1.1877 |
| Popis: | (2017-387) The application of existing remote sensing sensors and technologies for the detection of oil in and under ice is an ongoing and active research area. Currently, the suite of sensors that have and are being tested include acoustic, radar, optical and fluorosensors. Another technology being tested is Nuclear Magnetic Resonance (NMR) in the earth’s magnetic field. NMR to detect oil in and under ice has undergone extensive testing since 2006 and results to date have been promising. Field tests performed using a prototype 1 × 1 m flat transmitting/receiving antenna coil have differentiated seawater and Crisco® oil, a crude-oil surrogate. Research has been focused on scaling-up the 1 m2 prototype to increase the signal-to-noise ratio (SNR) and allow the sensor to detect oil beneath ice that is up to 1 m thick. The coil currently being tested has a diameter of 6 m in a modified figure-8 pattern. This coil was being tested at Cold Regions Research and Engineering Laboratory (CRREL) in Hanover, New Hampshire, USA. The final phase of feasibility testing was completed in late 2016 with the use of a ruggedized NMR system flown under a helicopter over a pond. The ruggedized NMR system was able to detect a 1.0 cm thick layer of a crude oil surrogate under ~ 110 cm of simulated ice. |
| Databáze: | OpenAIRE |
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