System and method for thermal ablation of pigging devices
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United States of America Patent
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Jan 29, 2019
Grant Date -
Dec 29, 2016
app pub date -
Jun 21, 2016
filing date -
Jun 26, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure provides for a novel pig design and method of retrieval based on thermal ablation. The pig comprises an external layer and an inner core, where the inner core further comprises at least one incendiary charge comprising at least one exothermic material. When ignited via an ignition source, the incendiary charge releases the exothermic material into one or more thermal dispersion channels. The exothermic material melts the interior of these thermal dispersion channels thereby distributing the exothermic material throughout the pig device causing its destruction via thermal ablation. The destroyed pig can then be easily retrieved from its location in a pipe, as detected via radio signals, without the need for costly excavation of large sections of the pipe.
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Family
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