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首页> 外文会议>Proceedings of the ASME India oil and gas pipeline conference 2013 >SMART PIGGING IN HIGH PRESSURE GAS PIPELINE PRACTICAL PROBLEMS AND SOLUTIONS- A CASE STUDY
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SMART PIGGING IN HIGH PRESSURE GAS PIPELINE PRACTICAL PROBLEMS AND SOLUTIONS- A CASE STUDY

机译：高压管道中的智能配管实际问题和解决方案-案例研究

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Smart pigs, also known as inline inspection (ILI) tools or intelligent pigs, are electronic devices designed to flow on the inside of a gas transmission pipeline, usually while the line is in service, to inspect a pipeline for various types of anomalies that can increase the risks of pipeline failure. This paper describes various problems faced on in service pigging in gas pipelines even after getting data by typical pipeline questionnaire as per NACE RP0102. Problems and solution starting from Launching, crossing SV stations, tap off Point flow tees and Receiving at Pig Receiver including data retrieval from smart pig. First of all, different segment thickness and anomalies of entire length of pipeline will be studied before launch of the tool, because this is important input in ILI tool design in terms of OD and percentage flexibility of pig while run. API 1163 will considered as a master standard for smart pig applications in pipelines. Smart pigging is done once in 10 years interval as per Indian regulation and data recorded in this inspection is important risk assessment input in Pipeline Integrity Management and for deciding life of pipeline. This paper describes various problem faced in pigging i.e. Pig struck before Launching in Launcher, Pig struck at Sectionalization Valve station, Pig stopped in Pipeline without any reason, Pig struck at Flow Tee before Receiver, Pig barrel opening a Hazardous activity, Failure of Data retrieval from smart pig after receiving, Re-run of smart pig and how fluctuating flow rates in different region of pipelines will affect running a pig. This paper deals pig retrieval methods used in different struck ups and various aspects to be considered while planning to run a smart pig. This paper also deals problem faced i.e. magnetized pipe and difficulty in welding after retrieving struck up pigs by hot tapping and stoppling methods and how it was solved. Smart pigging, when properly applied, can serve as a superior inspection tool for many risks of concern over other integrity inspection methods. A proper smart pigging program can play a vital role in integrity management ("IM") and smooth operation of pipeline without any flow interruption to downstream customers. The downstream customers of different industry which serves to run day to day life of society like Power Plants, City Gas Distribution (CGD) Companies, Refineries, Fertilizers, Ceramics, Dairy units etc will not be interrupted while run a smart pig to avoid consequences and give better service as a Pipeline operator. Smart pig, performance specification shall be qualified by the service provider by any one of the methodologies i.e. verified historical data, Large scale tests from real or artificial anomalies, small scale tests, modeling, and/or analyses. Pipeline operator may ensure final documents and other requirements as per API1163 standards.
机译：智能清管器，也称为在线检查（ILI）工具或智能清管器，是设计用于在输气管道内部流动的电子设备（通常在管道运行时），以检查管道是否存在各种异常类型。增加管道故障的风险。本文描述了即使按照NACE RP0102通过典型的管道调查表获取数据后，天然气管道中的清管工作仍面临的各种问题。问题和解决方案从发射，穿越SV站，分接点三通和在Pig Receiver接收开始，包括从智能猪中获取数据。首先，将在工具启动之前研究不同的管段厚度和整个管道的异常情况，因为这对于ILI工具设计而言是重要的输入，就外径和运行时生猪的柔韧性而言。 API 1163将被视为管道中智能猪应用程序的主要标准。根据印度法规，每10年进行一次智能清管，并且该检查中记录的数据对于管道完整性管理以及决定管道寿命而言，是重要的风险评估输入。本文描述了清管中遇到的各种问题，例如，在发射器中发射前，生猪被撞，在分段阀站中生猪被撞，管道中的生猪无故停顿，在接收器之前生猪在流道处生撞，生猪桶打开危险活动，数据检索失败从接收到的智能清管器开始，重新运行智能清管器，以及管道不同区域中的流速波动将如何影响运行清管器。本文介绍了在计划运行智能猪时在不同罢工和各个方面使用的猪检索方法。本文还讨论了通过热开孔和塞堵方法收回被击中的生猪后，磁化管所面临的问题以及焊接困难，以及如何解决该问题。如果适当应用智能清管器，则可以作为其他完整性检查方法所担心的许多风险的高级检查工具。适当的智能清管程序可以在完整性管理（“ IM”）和管道的平稳运行中发挥至关重要的作用，而不会给下游客户带来任何流量中断。养猪，养猪，养牛，化肥，陶瓷，乳制品等服务于社会日常工作的不同行业的下游客户在运行智能猪时不会被打扰，以免造成后果。提供更好的管道运营商服务。服务提供商应通过以下任何一种方法来验证智能猪的性能规格，即经过验证的历史数据，来自真实或人为异常的大规模测试，小规模测试，建模和/或分析。管道运营商可以确保最终文件和其他要求符合API1163标准。

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