Methods for internal cleaning and inspection of tubulars
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United States of America Patent
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Dec 1, 2015
Grant Date -
Apr 3, 2014
app pub date -
Mar 15, 2013
filing date -
Sep 28, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Methods are disclosed for performing operations such as cleaning, inspection or data acquisition on an internal surface of a hollow cylindrical tubular. Preferred embodiments include providing at least one reel on which a hollow articulated lance is spooled. Tools or sensors, for example, are installed on a distal end of each lance. Hoses, electrical conduits, conductors or other similar carrier hardware inside each hollow lance supply the tools or sensors as required. A stabbing mechanism causes the reel to spool and unspool the lance so that the tools or sensors reciprocate up and down the inside of the rotating tubular.
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