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首页> 外文会议>ASME international pipeline conference 2008 >IMPLEMENTATION OF AN INTEGRITY MANAGEMENT STRATEGY TO OPTIMIZE FUTURE INSPECTION, MAINTENANCE AND REHABILITATION ACTIVITIES
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IMPLEMENTATION OF AN INTEGRITY MANAGEMENT STRATEGY TO OPTIMIZE FUTURE INSPECTION, MAINTENANCE AND REHABILITATION ACTIVITIES

机译：实施完整性管理策略以优化未来的检查，维护和修复活动

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摘要

A Canadian pipeline company operates a 12 inch, nominal wall thickness 5.08mm and 25 km long partially buried insulated pipeline that transports hot liquid oil from an oil refinery, supplying product to a customer in Canada.rnIn addition to the economic importance, this pipeline crosses a city intersecting several high consequence areas (HCA's). Therefore ensuring the public safety and reliability of the pipeline is critical.rnOne of the primary threats to the integrity of the system is external corrosion associated with areas of damage to the yellow jacket external coating. In buried sections this is due to a combination of water ingress in the damaged coating and CP shielding in these localized areas. The above ground sections are at a higher risk since they are open to the environment and any water ingress can be replenished. This corrosion mechanism can lead to potentially high corrosion rates. Such localized damage is difficult or impossible to detect in above-ground surveys.rnIn addition to routine above-ground surveys and site examinations, high resolution in-line inspection is a key component of the pipeline operator's overall integrityrnmanagement strategy. It is conducted at appropriate frequencies to confirm the condition of the pipeline and to optimize maintenance plans to ensure the future safe, reliable and cost effective operation of the pipeline.rnTo date three in-line inspections have been conducted on this pipeline. This paper presents an innovative technique for conducting a detailed corrosion growth comparison of the three inspection data sets and demonstrates the practical use of this methodology to optimize the future integrity management strategy.
机译：一家加拿大管道公司运营着一条12英寸，标称壁厚5.08毫米，长25公里的部分埋入绝缘管道，该管道从炼油厂运送热的液态油，为加拿大的客户提供产品。与多个高风险区域（HCA）相交的城市。因此，确保管道的公共安全性和可靠性至关重要。对于系统完整性的主要威胁之一是与腐蚀黄色外套外部涂层的区域相关的外部腐蚀。在埋入部分中，这是由于受损涂层中的水进入和这些局部区域的CP屏蔽的综合作用。上面的地面部分对环境开放，因此任何进水都可以补充，因此处于较高的风险中。这种腐蚀机制会导致潜在的高腐蚀速率。在地面勘测中很难或不可能检测到这样的局部损坏。除了常规的地面勘测和现场检查之外，高分辨率的在线检查是管道运营商整体完整性管理策略的关键组成部分。它以适当的频率进行操作，以确认管道的状况并优化维护计划，以确保将来的管道安全，可靠和具有成本效益的运行。迄今为止，已对该管道进行了三次在线检查。本文提出了一种创新的技术，可以对三个检测数据集进行详细的腐蚀增长比较，并演示了该方法在优化未来完整性管理策略方面的实际应用。

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