发明名称 |
Stress limiting device for offshore oil reservoir production pipe |
摘要 |
The present invention relates to a device for improving the fatigue strength of a metal pipe a portion of which lies on the sea bottom and one end of which is suspended from a floating support subjected to the dynamic motions of the sea which move the touchdown point (TDP) of the pipe. The device comprises stress limiting means comprising a material ( 13 ) inserted between the pipe and the ground, in the vicinity of the touchdown point, the system thus created having a lineic stiffness below 200 kN/m/m and a thickness determined in such a way that the static and cyclic deformations remain allowable.
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申请公布号 |
US7077603(B2) |
申请公布日期 |
2006.07.18 |
申请号 |
US20040008244 |
申请日期 |
2004.12.10 |
申请人 |
INSTITUT FRANCAIS DU PETROLE |
发明人 |
FONTAINE EMMANUEL;PERRIN GILLES |
分类号 |
F16L1/14;E21B17/01 |
主分类号 |
F16L1/14 |
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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