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Displaying records 330 through 330 of 2180
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Title: Cable-operated ultrasonic pigging
Category: Pigsource Papers
Downloadable: Yes 
Catalog No.: pg3186e
Date of Publication: 1994
Price: $25.00 US
Authors: Jan A de Raad
Abstract: This paper provides an overview of the possibilities of ultrasonic pigging of pipelines and risers. Cable-operated ultrasonic systems for distances up to 7000m, propelled either by reversible wheel-driven crawlers or by differential pressure, are described. These systems are suitable for pipes with diameters between 150 and 1400mm. Construction of tools suitable for even smaller diameters seems feasible. Finally, a self-contained liquid-propelled ultrasonic intelligent pig for the inspection of riser pipes is described.
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