摘要
深海水下采油树是海洋油气开采的重要设备,其长期处于腐蚀性很强的海水中,腐蚀相当严重,因此解决其腐蚀问题对于深海水下采油十分重要。通过分析影响深海海水腐蚀的溶解氧、温度、压力、流速和pH值等因素,认为牺牲阳极的阴极保护与涂层保护相结合是解决深海水下采油树腐蚀问题的有效措施。重点介绍牺牲阳极的原理、常用材料、设计要点等,根据有关的标准,利用数值模拟技术优化了深海水下采油树的阴极保护设计方案,对解决深海水下采油树的腐蚀问题具有指导意义。
Subsea Christmas tree is an important facility for offshore oil and gas exploitation,so performance of anti-corrosion is crucial for underwater oil recovery.Based on the analysis of dissolved oxygen,temperature,pressure,flow rate and pH value that affect the corrosion of subsea Christmas tree,it was considered that the combination of sacrificial anode cathodic protection with coating protection was an ideal anti-corrosion method.Then the principle,common materials and design points of sacrificial anode method were introduced in detail.According to the relevant standards,the design scheme of cathodic protection was proposed to be optimized by numerical simulation,which was significant to solve the corrosion problem.
作者
刘兴铎
周小峰
孙传轩
严金林
李中华
杨超
LIU Xingduo;ZHOU Xiaofeng;SUN Chuanxuan;YAN Jinlin;LI Zhonghua;YANG Chao(National Engineering Research Center for Oil and Gas Drilling Equipment,Baoji 721002,China;CNPC Baoji Oilfield Machinery Co.,Ltd.,Baoji 721002,China)
出处
《石油化工腐蚀与防护》
CAS
2020年第6期6-10,共5页
Corrosion & Protection In Petrochemical Industry
基金
中国石油集团公司项目“深水采油树关键技术验证及浅水泥线采油树设计”。
关键词
深海水下采油树
阴极保护
牺牲阳极
保护涂层
数值模拟
subsea Christmas tree in deep sea
cathodic protection design
sacrificial anode
protective coating
numerical simulation of cathodic protection
