发明申请
- 专利标题： APPARATUS AND METHODS OF MILLING A RESTRICTED CASING SHOE
- 专利标题（中）： 一种限制性壳体鞋的设备和方法
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申请号： US12098341申请日： 2008-04-04
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公开(公告)号： US20080245532A1公开(公告)日： 2008-10-09
- 发明人: Bill Rhinehart , Thomas M. Redlinger , Thurman B. Carter , Wei Xu , Hubert E. Halford , Martin Stulberg
- 申请人： Bill Rhinehart , Thomas M. Redlinger , Thurman B. Carter , Wei Xu , Hubert E. Halford , Martin Stulberg
- 主分类号： E21B29/08
- IPC分类号： E21B29/08
摘要：
A method of removing a restriction in a tubular located in a well includes providing a drilling assembly with a drill bit and a reamer, the reamer having a cutting structure for removing the restriction; drilling through a lower portion of the tubular; expanding the reamer at a location below the restriction; and urging the reamer back toward the restriction to remove the restriction.
公开/授权文献
- US08146682B2 Apparatus and methods of milling a restricted casing shoe 公开/授权日：2012-04-03
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