高含硫原油集输系统腐蚀边界条件分析  

Analysis on Corrosion Boundary Conditions for High Sour Crude Oil Gathering and Transportation System

作　　者：朱倩 底国彬 崔艳丽[2] 谭金华[2] 谷永钢 ZHU Qian;DI Guobin;CUI Yanli;TAN Jinhua;GU Yonggang(China Petroleum Engineering Construction Co.,Ltd.North China branch,Renqiu Hebei 062552,China;PetroChina Huabei Oilfield Company,Renqiu Hebei 062552,China)

机构地区：[1]中国石油工程建设有限公司华北分公司,河北任丘062552 [2]中国石油天然气股份有限公司华北油田公司,河北任丘062552

出　　处：《辽宁化工》2025年第1期172-175,共4页Liaoning Chemical Industry

摘　　要：针对国内某新开发高含硫油田的液相及气相性质、工艺运行参数等条件,明确其高腐蚀风险的运行工况,为制定油田全周期工艺运行方案提供理论参考。通过进行不同采出液含水率、水质矿化度、温度、流速、压力以及气相含H_(2)S/CO_(2)条件下的腐蚀性研究,分析集输系统运行的腐蚀边界条件。结果表明:结合原油中硫成分的主要存在形态,气相中含H_(2)S/CO_(2)、采出液含水率≥70%,是集输系统达到高腐蚀风险的边界条件,对20钢的室内平均腐蚀速率达0.102 2~0.445 5 mm·a^(-1),腐蚀等级达中级至严重,在该油田生产运行中,需结合工艺需求提前采取防腐措施。Based on the liquid and gas phase properties,process operating parameters and other conditions of a newly developed high sulfur oil field in China,the high corrosion risk operating conditions were clarified,providing theoretical reference for the full cycle process operation plan of the oil field.The corrosion boundary conditions for the operation of the gathering and transportation system were analyzed by conducting corrosion studies under different water content,water salinity,temperature,flow rate,pressure,and gas phase H_(2)S/CO_(2) conditions of the produced liquid.The results indicated that,considering the main forms of sulfur in crude oil,the presence of H_(2)S/CO_(2) in the gas phase and water content of≥70% in the produced liquid were the boundary conditions for the gathering and transportation system to achieve high corrosion risk.The indoor average corrosion rate of 20 steel reached0.1022~0.445 mm·a^(-1),and the corrosion level reached medium to severe.In the production and operation of the oil field,anti-corrosion measures should be taken in advance based on process requirements.

关 键 词：油田 高含硫 腐蚀 原油 集输系统 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]