Corrosion Reason Analysis of Ground Gathering Pipelines in High Flow-rate Gas Condensate Field

摘要：

　　Ground gathering pipelines in a high flow-rate gas condensate field were seriously corroded and became perforation only after five months operation.The results of witnessed inspections and analysis showed that T-branch pipe,Elbow and weld were corroded most seriously.The main features of the corrosion were trench-like corrosion pits.In order to clarify the reasons for corrosion so seriously,XRD,SEM,EDS were used to test the film of sample which was taken from the field.The results showed that wall thinning of pipelines was mainly caused by CO2 corrosion combined with erosion and the corrosion product was mainly composed of FeCO3.

关键词： high flow-rate gas condensate field T-branch pipe corrosion erosion

作者: Rui Cai Yan Han Shidong Zhu Guanfa Lin Zhenquan Bai

作者单位: CNPC Tubular Goods Research Institute, No.32 Dianzier Road, Xian ,China School of Material Science and Engineering, Xian Jiaotong University, Xian 710049;

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 105-109

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）