Residual Strength Evaluation of Corroded Pipeline Based on Effective Area Method

doi:10.3969/j.issn.1672-6952.2017.03.004

Journal of Liaoning Petrochemical University ›› 2017, Vol. 37 ›› Issue (3): 15-18.DOI: 10.3969/j.issn.1672-6952.2017.03.004

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Residual Strength Evaluation of Corroded Pipeline Based on Effective Area Method

Sun Dongxu^1,2,Zhao Ling¹,Wu Ming¹,Xie Fei¹

1.College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China;
2.College of Pipeline and Civil Engineering,China University of Petroleum ,Qingdao Shandong 266555,China

Received:2016-04-03 Revised:2016-07-18 Published:2017-07-20 Online:2017-06-30

应用有效面积法评价管道剩余强度实用性研究

孙东旭^1,2,赵玲¹,吴明¹,谢飞¹

1.辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001;
2.中国石油大学储运与建筑工程学院,山东青岛266555

通讯作者: 吴明(1961-),男,博士,教授,博士生导师,从事管道完整性方面的研究;E-mail:wuming0413@163.com。
作者简介:孙东旭(1991-),男,博士研究生,从事腐蚀管道完整性评价等方面的研究;E-mail:dx_sun@yahoo.com。
基金资助:
国家自然科学基金项目“海洋油气管线钢微生物、力学和电化学因素耦合作用下应力腐蚀裂尖行为与扩展机理”(51574147)

Abstract

Abstract: The residual strength evaluation of corroded pipeline carried out regularly was significant for guiding pipeline maintenance and operation safety. Effective Area Method, an important residual strength evaluation technique, was studied. A corrosion defect measure method was proposed, which was suitable for the Effective Area Method. The computer program was compiled according to the calculation model of Effective Area Method. The residual strength of an actual pipeline defect was evaluated by the Effective Area Method and Modified B31G respectively. The result showed that the Effective Area Method was less conservative than Modified B31G.

Key words: Corroded pipeline, , Residual strength evaluation, , Effective Area Method, , Corrosion defect, , Measure method

摘要： 定期开展腐蚀管道剩余强度评价工作,对指导管道维护维修、保证管道安全运行具有重要意义。有效面积法是一种重要的管道剩余强度评价方法。提出了一种适用于有效面积法的腐蚀缺陷测量方法,该方法能够对管体腐蚀形貌进行详细描述;根据有效面积法计算模型编制了计算机程序,对某管道实际腐蚀缺陷进行了计算求解。结果表明,应用有效面积法的计算结果高于ModifiedB31G评价方程的计算结果,即保守性较低。

关键词: 腐蚀管道, , 剩余强度评价, , 有效面积法, , 腐蚀缺陷, , 测量方法

Sun Dongxu,Zhao Ling,Wu Ming,Xie Fei. Residual Strength Evaluation of Corroded Pipeline Based on Effective Area Method[J]. Journal of Liaoning Petrochemical University, 2017, 37(3): 15-18.

孙东旭,赵玲,吴明,谢飞. 应用有效面积法评价管道剩余强度实用性研究[J]. 辽宁石油化工大学学报, 2017, 37(3): 15-18.

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Residual Strength Evaluation of Corroded Pipeline Based on Effective Area Method

应用有效面积法评价管道剩余强度实用性研究

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