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首页> 外文会议>Biennial International Pipeline Conference(IPC 2004) vol.3; 20041004-08; Calgary(CA) >THE PREDICTION ENHANCEMENT OF UOE-DSAW COLLAPSE RESISTANCE FOR DEEPWATER LINEPIPE
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THE PREDICTION ENHANCEMENT OF UOE-DSAW COLLAPSE RESISTANCE FOR DEEPWATER LINEPIPE

机译：深水管道UOE-DSAW抗塌陷性的预测和增强

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摘要

With the increasing development of oil and gas reserves in water depths greater than 1500 m, linepipe used for deepwater and ultra-deepwater applications will require enhanced resistance to hydrostatic collapse. To support this need, Corus Tubes has been investigating methods by which increases in UOE linepipe collapse strength can be achieved. In particular, it has been theorised that modifications to the UOE manufacturing process can provide the necessary collapse strength enhancements. Pipe production trials were conducted focusing on the effect of processing parameters during UOE linepipe production, and in addition low temperature heat treatment was used to assess its effect. Full-scale collapse tests were then performed on the resulting linepipe specimens to validate the increase in collapse strength. The results of this work have demonstrated the beneficial effect of a modified UOE manufacturing approach on linepipe collapse resistance. This paper summarizes the work performed, quantifies the increase in collapse strength, and compares the test results to collapse equations found in offshore pipeline standards. It is also demonstrated that the UOE fabrication factor of 0.85 in the DNV offshore pipeline code (DNV OS-F101) may be considered to be over conservative, when linepipe is manufactured using the modified approach summarized herein.
机译：随着在大于1500 m的水深中油气储量的不断增加，用于深水和超深水应用的管线管将要求增强对静水力塌陷的抵抗力。为了满足这种需求，Corus Tubes已经研究了可以提高UOE管道塌陷强度的方法。特别地，已经理论化地，对UOE制造工艺的修改可以提供必要的塌陷强度增强。进行了管道生产试验，重点关注UOE管道生产过程中工艺参数的影响，此外还使用低温热处理来评估其效果。然后对所得的管道样品进行全面坍塌测试，以验证坍塌强度的增加。这项工作的结果证明了改进的UOE制造方法对管道抗倒塌的有益作用。本文总结了所做的工作，量化了塌陷强度的增加，并将测试结果与海上管道标准中发现的塌陷方程进行了比较。还证明了，当使用本文总结的改进方法制造管线时，DNV海上管线代码（DNV OS-F101）中的UOE制造系数0.85可能被认为过于保守。

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