Flow and pipe management using velocity profile measurement...

G - Physics – 01 – B

Patent

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Details

G01B 15/02 (2006.01) G01B 17/02 (2006.01) G01N 29/04 (2006.01) G01N 29/28 (2006.01)

Patent

CA 2718476

The present invention provides new techniques for non-invasive and real-time measurement of the velocity profile of slurry flow in horizontal pipes, as well as the measurement and trending of pipe wear on slurry lines. In the first case, this information can be used to determine the approach and onset of solid deposition on the bottom of the pipe. Having this information in real time can enable operation at lower velocities or higher solids concentration or both while avoiding solids deposition or plugging and their associated operational costs. In the second case, the present invention uses a permanently or semi-permanently installed ring of conformable ultrasonic transducers clamped onto the outside of the pipe. These transducers are used to measure the thickness of the pipe under their respective locations.

Linvention concerne de nouvelles techniques pour une mesure non invasive et en temps réel du profil de vitesse dun écoulement de boue dans des tuyaux horizontaux, ainsi que la mesure et la tendance à lusure de tuyau sur des lignes de boue. Dans le premier cas, ces informations peuvent être utilisées pour déterminer lapproche et le départ dun dépôt de solide au fond du tuyau. Le fait davoir ces informations en temps réel peut permettre un fonctionnement à des vitesses inférieures ou à des concentrations en solides supérieures ou bien les deux tout en évitant un dépôt de solides ou un bouchage et leurs coûts de fonctionnement associés. Dans le second cas, la présente invention utilise une bague installée de façon permanente ou semi-permanente de transducteurs ultrasonores conformables serrés sur lextérieur du tuyau. Ces transducteurs sont utilisés pour mesurer lépaisseur du tuyau sous leurs emplacements respectifs.

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