发明名称 Wellbore debris cleanout assembly and method to remove debris from a debris catcher
摘要 A cleanout assembly for removal of debris from a debris chamber in a wellbore cleaning tool. The cleanout assembly includes a mandrel, a boot radially surrounding the mandrel and a debris chamber defined radially between the mandrel and the boot. The boot has one or more windows therein to permit debris to be cleaned out of the debris chamber. A cover is disposed within the debris chamber and is movable within the debris chamber between a first position, wherein the one or more windows are blocked by the cover, and a second position, wherein the one or more windows are not blocked by the cover
申请公布号 US8387700(B2) 申请公布日期 2013.03.05
申请号 US20100789914 申请日期 2010.05.28
申请人 HERN GREGORY L.;BAKER HUGHES INCORPORATED 发明人 HERN GREGORY L.
分类号 E21B37/08;E21B31/08 主分类号 E21B37/08
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