- 专利标题: Method of running a pipe string having an outer diameter transition
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申请号: US12618705申请日: 2009-11-13
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公开(公告)号: US08002027B2公开(公告)日: 2011-08-23
- 发明人: Jeremy R. Angelle , Donald E. Mosing , John E. Stelly
- 申请人: Jeremy R. Angelle , Donald E. Mosing , John E. Stelly
- 申请人地址: US LA Lafayette
- 专利权人: Frank's Casing Crew and Rental Tools, Inc.
- 当前专利权人: Frank's Casing Crew and Rental Tools, Inc.
- 当前专利权人地址: US LA Lafayette
- 代理机构: Osha • Liang LLP
- 主分类号: E21B19/24
- IPC分类号: E21B19/24
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.
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