发明名称 |
METHOD OF RUNNING A PIPE STRING HAVING AN OUTER DIAMETER TRANSITION |
摘要 |
One embodiment provides an adjustable guide 10a to steer the end 90 of a pipe string 88 into position to be engaged and supported by a pipe gripping apparatus such as, for example, an externally gripping elevator assembly 10. The adjustable guide 10a may comprise a plurality of angularly distributed guide inserts 30, each having a sloped surface 30A to engage a pipe end 90. Another embodiment provides an adjustable guide 60a to steer a pipe connection into position to pass through a spider 60. The guide inserts 30, 80 of an adjustable guide may be controllably positionable to together form a guide that is concentric with the bore of the tapered bowl of an elevator assembly or a spider. One embodiment comprises a guide insert retainer 11 having a plurality of channels 28, each slidably receiving a guide insert 30 and positionable by rotation of a threaded shaft 40. |
申请公布号 |
US2012061101(A1) |
申请公布日期 |
2012.03.15 |
申请号 |
US201113301234 |
申请日期 |
2011.11.21 |
申请人 |
ANGELLE JEREMY R.;MOSING DONALD E.;STELLY JOHN E.;FRANK'S CASING CREW AND RENTAL TOOLS, INC. |
发明人 |
ANGELLE JEREMY R.;MOSING DONALD E.;STELLY JOHN E. |
分类号 |
E21B19/16;B23P11/00;E21B23/00 |
主分类号 |
E21B19/16 |
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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