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首页> 外文会议>Corrosion Conference and Expo >PROGRESS IN THE PREDICTION OF TOP OF THE LINE CORROSION AND CHALLENGES TO PREDICT CORROSION RATES MEASURED IN GAS PIPELINES
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PROGRESS IN THE PREDICTION OF TOP OF THE LINE CORROSION AND CHALLENGES TO PREDICT CORROSION RATES MEASURED IN GAS PIPELINES

机译：预测线腐蚀和挑战的预测的进展预测气体管道中测量的腐蚀速率

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摘要

Bongkot is an offshore gas field in the Gulf of Thailand in operation since 1992. The sealines have been subjected to top of line corrosion (TLC) since the production start-up. After detection of the first TLC case in this field in 1999, different possibilities were investigated and implemented to reduce the corrosion rate to a reasonable value. Recently few leaks were experienced at cold spots like bare metal surfaces around subsea flanges or anode pads welding. It was clear that stabilisation does not take place at cold spots. TLC prediction for the sealines of different gas fields was necessary for prediction of leaks at such locations. The TOPCORP model was selected for this purpose. As a first step, the capabilities of this model were evaluated using data available from Bongkot field. This paper gives a short review of different prediction models, summarises selected model's main features, compares the predicted water condensation and corrosion rates to inspection results and discusses the capabilities of the model.
机译：Bongkot是自1992年以来泰国海湾的海上气田。自生产启动以来，密封件已被追随线腐蚀（TLC）。在1999年检测到该领域的第一款TLC案例后，调查并实施了不同的可能性，以将腐蚀速度降低到合理的价值。最近，在海底法兰或阳极焊盘周围的裸金属表面等裸斑，在裸斑或阳极焊盘焊接中遇到了很少的泄漏。很明显，稳定性不会发生在寒冷的斑点。在这些位置处的泄漏预测是必要的不同气体领域的密封件的TLC预测。为此目的选择了TOPCORP模型。作为第一步，使用从Bongkot字段可获得的数据来评估该模型的功能。本文介绍了对不同预测模型的综述，总结了所选模型的主要特征，比较预测的水冷凝和腐蚀速率，以检查结果，并讨论模型的能力。

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