| 发明名称 |
ARTICULATED DRILLSTRING ENTRY APPARATUS AND METHOD |
| 摘要 |
Apparatuses and methods to allow tools disposed upon a conduit to enter the bore of a drillstring is presented. The apparatuses and methods include the use of one or more articulated knuckle joints at ends of an entry sub. The articulated knuckle joints are capable of articulating the entry sub among various conduit entry and load carrying positions.
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| 申请公布号 |
US2005211443(A1) |
申请公布日期 |
2005.09.29 |
| 申请号 |
US20040708750 |
申请日期 |
2004.03.23 |
| 申请人 |
HELMS CHARLES M;KAUFFMAN VERNON E;LEETH DOUGLAS B;LEMKE JOHN A;SMITH MAX H |
发明人 |
HELMS CHARLES M.;KAUFFMAN VERNON E.;LEETH DOUGLAS B.;LEMKE JOHN A.;SMITH MAX H. |
| 分类号 |
E21B17/02;E21B17/20;E21B19/22;E21B25/16;E21B33/072;(IPC1-7):E21B25/16 |
主分类号 |
E21B17/02 |
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