发明名称 |
Apparatus and methods of milling a restricted casing shoe |
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. |
申请公布号 |
US8146682(B2) |
申请公布日期 |
2012.04.03 |
申请号 |
US20080098341 |
申请日期 |
2008.04.04 |
申请人 |
RHINEHART BILL;REDLINGER THOMAS M.;CARTER THURMAN B.;XU WEI;HALFORD HUBERT E.;STULBERG MARTIN;WEATHERFORD/LAMB, INC. |
发明人 |
RHINEHART BILL;REDLINGER THOMAS M.;CARTER THURMAN B.;XU WEI;HALFORD HUBERT E.;STULBERG MARTIN |
分类号 |
E21B7/28;E21B29/00 |
主分类号 |
E21B7/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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