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公开(公告)号:US10718183B2
公开(公告)日:2020-07-21
申请号:US15108636
申请日:2014-11-05
摘要: A tubular has a retracted configuration and an extended configuration. The tubular is initially in the retracted configuration and run into a bore at least partially lined with filter cake. The tubular is extended such that a filter cake-disrupting member mounted on the tubular defines high points or otherwise has an outer surface of varying radial extent for disrupting or disturbing the filter cake.