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普光气田是中国特大型高含硫酸性气田, 随着气田不断开采, 集输工艺管道腐蚀问题日益突出.对普光气田高含硫输气管道所用L360管线钢开展应力-应变参数测试试验, 采用Solid186单元对含缺陷腐蚀管道进行建模, 基于非线性有限元隐式积分算法与塑性失效准则, 分析了腐蚀缺陷参数对高含硫输气管道极限承载能力的影响规律, 并通过静水压爆破试验, 验证了模型的准确性.结果表明:腐蚀缺陷对高含硫输气管道强度的影响主要表现为局部应力集中;缺陷深度系数对高含硫输气管道极限承载能力影响最大, 缺陷长度系数影响次之, 缺陷宽度系数影响最小.研究成果为普光气田高含硫输气管道剩余强度评价提供了理论依据.“,”Puguang Gas Field is the giant high-sulfur acid gas field in China. And as it is produced continuously, the corrosion of gathering and transportation pipelines is increasingly serious. L360 pipeline steel is used in the high-sulfur gas pipelines of Puguang Gas Field and its stress-strain parameters were tested. The pipeline with corrosion defects was modeled using the Solid186 unit. Then, the influence rules of corrosion defect parameters on the ultimate bearing capacity of high-sulfur gas pipeline was analyzed based on the implicit integration algorithm of nonlinear finite element and the plastic failure criterion. Finally, the correctness of this model was verified by virtue of the hydrostatic pressure blasting test. It is shown that the influence of the defects on the strength of high-sulfur gas pipelines is mainly presented as the local stress concentration. The ultimate bearing capacity of the high-sulfur gas pipeline is the most affected by the defect depth cofficient, secondly by the defect length cofficient, and the least by the defect width cofficient. The research results provide the theoretical basis for evaluating the residual strength of high-sulfur gas pipelines in Puguang Gas Field.