发明名称 Method of cleaning and refinishing tubulars
摘要 A method for cleaning and/or altering an inside surface and shape of a tubular in a wellbore. The method includes placing a surface finishing tool in the tubular, energizing the surface finishing tool, and causing extendable assemblies therein to extend radially to contact an inside diameter of the tubular. Moving the surface finishing tool axially and/or rotationally while the extended members are in contact with the inside diameter of the tubular cleans debris from the inside surface of the tubular. In another aspect of the invention, the tool burnishes the inside diameter of the tubular, thereby altering the surface characteristics and rounding the tubular.
申请公布号 US6758275(B2) 申请公布日期 2004.07.06
申请号 US20020222544 申请日期 2002.08.16
申请人 WEATHERFORD/LAMB, INC. 发明人 MARTIN BURT
分类号 E21B29/10;E21B37/04;(IPC1-7):E21B37/02 主分类号 E21B29/10
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