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Availability analysis of subsea blowout preventer using Markov model considering demand rate

机译:考虑需求率的马尔可夫模型对海底防喷器的可用性分析

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ABSTRACT Availabilities of subsea Blowout Preventers (BOP) in the Gulf of Mexico Outer Continental Shelf (GoM OCS) is investigated using a Markov method. An updated β factor model by SINTEF is used for common-cause failures in multiple redundant systems. Coefficient values of failure rates for the Markov model are derived using the β factor model of the PDS (reliability of computer-based safety systems, Norwegian acronym) method. The blind shear ram preventer system of the subsea BOP components considers a demand rate to reflect reality more. Markov models considering the demand rate for one or two components are introduced. Two data sets are compared at the GoM OCS. The results show that three or four pipe ram preventers give similar availabilities, but redundant blind shear ram preventers or annular preventers enhance the availability of the subsea BOP. Also control systems (PODs) and connectors are contributable components to improve the availability of the subsea BOPs based on sensitivity analysis.
机译:摘要使用马尔可夫方法研究了墨西哥湾外大陆架(GoM OCS)中的海底防喷器(BOP)的可用性。 SINTEF更新的β因子模型用于多个冗余系统中的常见原因故障。使用PDS(基于计算机的安全系统的可靠性,挪威首字母缩略词)方法的β因子模型可以得出马尔可夫模型的失效率系数值。海底防喷器组件的盲剪防撞器系统考虑了需求率以更加反映现实。介绍了考虑一两个组件需求率的马尔可夫模型。在GoM OCS上比较了两个数据集。结果表明,三个或四个管道闸板防喷器的可用性相似,但是多余的盲剪闸板防喷器或环形防喷器提高了海底防喷器的可用性。此外,控制系统(POD)和连接器是可用于根据敏感性分析提高海底防喷器可用性的组件。

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