湿气管线的内腐蚀直接评价原理  

Direct Assessment Principle of Internal Corrosion in Wet Gas Pipeline

作　　者：张鹏[1] 李欣茜[1] 彭星煜[1] 南立团[1] 陈智勇[1] 刘争芬[1] 

机构地区：[1]西南石油大学建筑工程学院,四川成都610500

出　　处：《石油工业技术监督》2007年第10期15-19,共5页Technology Supervision in Petroleum Industry

基　　金：国家自然科学基金(50678154);高等学校博士学科点专项科研基金(20060615003);教育部优秀青年教师资助计划项目;油气藏地质及开发工程国家重点实验室开放基金(PLN0113);中国石油科技风险创新研究项目((050511-5-2));四川省教育厅自然科学重点项目(2006A121)

摘　　要：应用湿气管线的湿气系统内腐蚀直接评价方法(WG-ICDA),在管道内腐蚀发生前,确定出腐蚀的具体位置和数量,并在此基础上进行挖掘检查。该方法的核心是在分析流动影响、传统腐蚀率和其它腐蚀影响因素这3个因素的基础上,对管段各处腐蚀发生的可能性进行优先次序的排列。通过分析各种因素确定了WG-ICDA的基本原理,并阐述了该方法的4个步骤,即预评价、间接检测、直接检查和后评价。WG-ICDA方法的提出完善了气体运输管线的ICDA方法体系,扩展了其应用范围,使其更具有实用性和工程应用价值。An illustration is given to the direct assessment on the internal corrosion of wet gas pipeline （WG-ICDA） in the paper. The purpose of this method is to identify the location and number of corrosion before its occurrence, and then to do further examination. The core of the method is to prioritize the locations of corrosion occurrence along pipeline segment based on the analysis of three factors： flow effect, traditional corrosion rate and other influencing factors. Meanwhile, According to this analysis, the basic principle of WG-ICOA is determined; and four steps of this method have been expounded, which are pre-assessment, indirect detection, direct examination and post-assessment. At last, it is concluded that the proposal of WG-ICDA perfects the ICDA methodology system of gas transmission pipeline, broadens its application scope and makes it more practical and applicable in the engineering.

关 键 词：湿气系统 流动影响 腐蚀率 湿气管线 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]