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The Kvitebjorn Pipeline Repair

机译:Kvitebjorn管道维修

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On the 1 of November 2007 during a routine inspection, severe anchor damage was discovered on the 30" Kvitebjorn rich gas pipeline, about 10 km from the platform at 210 m water depth. The damage constituted a localised dent and a 17deg buckle, but no leakage.Since 1987 Statoil on behalf of the different pipeline transportation licences, has invested time and money into building up an effective repair contingency for the pipeline network from the Norwegian Continental shelf, in particular the large gas export pipelines.The contingency repair method for the Kvitebjarn pipeline is based upon the use of two Morgrip couplings and a spool to be installed with remotely operated H-frames and a purpose build Coupling Installation Frame (CIF), constituting vital parts of the total Pipeline Repair System. The couplings were produced and tested back in 2005.This paper will cover the initial damage description, the repair preparations, the actual remote repair methodology and lessons learned. The Kvitebjern incident has shown how important it is to be prepared and it can be termed as a real baptism for the company's pipeline repair preparedness.The 27th of January 2009, one year and three months after the damage discovery, the repair was successfully completed and gas export from the Visund and Kvitebjern platforms resumed.
机译:在2007年11月1日的例行检查中,在距水平台210 m处距平台约10 km的30“ Kvitebjorn富气管道上发现了严重的锚固损坏。该损坏构成了局部凹痕和17度弯曲,但没有泄漏。 自1987年起,挪威国家石油公司(Statoil)代表各种管道运输许可证,花费了时间和金钱,为挪威大陆架,特别是大型天然气出口管道的管道网络建立了有效的维修应急队伍。 Kvitebjarn管道的应急修复方法是基于使用两个Morgrip联轴器和一个将安装有远程操作H形框架的阀芯和一个专用的联轴器安装框架(CIF),构成整个管道修复系统的重要组成部分。联轴器于2005年生产和测试。 本文将介绍最初的损坏描述,维修准备,实际的远程维修方法和经验教训。 Kvitebjern事件表明准备工作非常重要,可以说是公司管道维修准备工作的真正洗礼。 发现损坏的一年零三个月后的2009年1月27日,修复工作成功完成,Visund和Kvitebjern平台的天然气出口得以恢复。

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