多相流管道内腐蚀的直接评价方法
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摘要
对含CO_2多相流管道内腐蚀的评价分析采用内腐蚀直接评价方法(ICDA)。该方法的主要步骤分为:预评价、间接评价、详细评价和后评价四个步骤。含CO_2多相流管道发生内腐蚀的主要原因是管道内存在积水问题,通过计算管道的实际倾角与管道的临界倾角,对管道内积水腐蚀进行概率分析。利用Norsok M506模型对管道内腐蚀速率进行预测,根据API579-1/ASMEFFS-1-2016《适用性评价》中的公式对管道剩余寿命进行预测。
The direct internal corrosion assessment method(ICDA)is used to evaluate the internal corrosion of multiphase pipelines containing CO_2.The main steps of this method are pre-evaluation,indirect evaluation,detailed evaluation and post-evaluation.The main cause of internal corrosion of pipeline with CO_2multiphase flow is water accumulation in pipeline.By calculating the actual inclination of pipeline and the critical inclination of pipeline,the probability analysis of water accumulation corrosion in pipeline is carried out.Norsok M506 model is used to predict the corrosion rate in pipeline,and the remaining life of pipeline is predicted according to the formula in API 579-1/ASMEFFS-1-2016 applicability evaluation.
The direct internal corrosion assessment method(ICDA)is used to evaluate the internal corrosion of multiphase pipelines containing CO_2.The main steps of this method are pre-evaluation,indirect evaluation,detailed evaluation and post-evaluation.The main cause of internal corrosion of pipeline with CO_2multiphase flow is water accumulation in pipeline.By calculating the actual inclination of pipeline and the critical inclination of pipeline,the probability analysis of water accumulation corrosion in pipeline is carried out.Norsok M506 model is used to predict the corrosion rate in pipeline,and the remaining life of pipeline is predicted according to the formula in API 579-1/ASMEFFS-1-2016 applicability evaluation.
引文
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[2]龙凤乐,郑文军,陈长风,等.温度、CO2分压、流速、p H值对X65管线钢CO2均匀腐蚀速率的影响规律[J].腐蚀与防护,2005,26(7):290~293.
[3]董晓焕,姜毅,杨志伟,等.水溶性缓蚀剂在中低二氧化碳气井的应用[J].石油化工腐蚀与防护,2012,29(1):14~17.
[4]梁颖.多相流管输的内腐蚀及其防治措施[J].石化技术,2015,12:124~127.
[5]赵长郡.含CO2多相流管道内腐蚀评价分析[D].北京:中国石油大学, 2016.
[6]陈家琅.石油气液两相管流(第一版)[M].北京:石油工业出版社,1989.
[7]薛成刚.水平与微倾斜两相段塞流中持液率计算新方法[J].国外油田工程,2001,17(2):50~52.
[8]ANON. CO2corrosion rate calculation model[S]. Norway,2005.
[9]赵常俊,赵联祁.含CO2多相流管道内腐蚀直接评价方法研究[J].化学工程与装备,2016(02):93~97.
[10]乐钻,曹学文.含CO2湿气管线内腐蚀直接评价关键技术研究与实施[J].石油地质与工程, 2012, 26(4):133~136.
[11]曲伟首,金磊,张传旭,等.渤西南长输海底管道某管段内腐蚀直接评价研究[J].石油化工设备,2018, 47(2):12~16.
[2]龙凤乐,郑文军,陈长风,等.温度、CO2分压、流速、p H值对X65管线钢CO2均匀腐蚀速率的影响规律[J].腐蚀与防护,2005,26(7):290~293.
[3]董晓焕,姜毅,杨志伟,等.水溶性缓蚀剂在中低二氧化碳气井的应用[J].石油化工腐蚀与防护,2012,29(1):14~17.
[4]梁颖.多相流管输的内腐蚀及其防治措施[J].石化技术,2015,12:124~127.
[5]赵长郡.含CO2多相流管道内腐蚀评价分析[D].北京:中国石油大学, 2016.
[6]陈家琅.石油气液两相管流(第一版)[M].北京:石油工业出版社,1989.
[7]薛成刚.水平与微倾斜两相段塞流中持液率计算新方法[J].国外油田工程,2001,17(2):50~52.
[8]ANON. CO2corrosion rate calculation model[S]. Norway,2005.
[9]赵常俊,赵联祁.含CO2多相流管道内腐蚀直接评价方法研究[J].化学工程与装备,2016(02):93~97.
[10]乐钻,曹学文.含CO2湿气管线内腐蚀直接评价关键技术研究与实施[J].石油地质与工程, 2012, 26(4):133~136.
[11]曲伟首,金磊,张传旭,等.渤西南长输海底管道某管段内腐蚀直接评价研究[J].石油化工设备,2018, 47(2):12~16.