发明名称 |
RISER SECTIONS AND METHODS FOR MAKING SAME |
摘要 |
<p>A riser section for joining to another riser section to form a drilling riser includes a weld region generated by welding a first riser tube to a second riser tube. The weld region includes a fusion zone in which material of the first riser tube coalesces with material of the second riser tube, and a heat-affected zone adjacent the fusion zone. The riser section also includes a cover positioned over the weld region and welded to the first riser tube and to the second riser tube such that the cover covers the fusion zone and the heat-affected zone to protect the zones. The cover may be a solid piece of material that is welded to the riser tubes, or the cover may be a bead of weld filler material that is welded (melted and deposited) onto the weld region of each of the riser tubes.</p> |
申请公布号 |
CA2852946(A1) |
申请公布日期 |
2013.04.25 |
申请号 |
CA20122852946 |
申请日期 |
2012.10.19 |
申请人 |
ADVANCED JOINING TECHNOLOGIES, INC. |
发明人 |
WALDRON, DOUGLAS J.;MCTERNAN, KEITH RICHARD |
分类号 |
E21B7/12 |
主分类号 |
E21B7/12 |
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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