Corrosion Law and Protection Measures of Shale Gas Well Wellbores
摘 要
为了明确页岩气井井筒的腐蚀规律,对现场取得数据进行灰色关联分析,确定CO2分压、硫酸盐还原菌含量的关联度大于0.7,为影响腐蚀的主控因素。通过动态腐蚀评价试验测定温度、压力、CO2分压和硫酸盐还原菌含量对N80钢和P110钢腐蚀速率的影响。通过腐蚀失重法开展了缓蚀剂的评价及优选试验,结果表明:缓蚀剂2在加注量为200 m/L时,对N80钢和P110钢有较好的缓蚀效果,且此时经济效益最大化。
Abstract
In order to clarify the corrosion rules of shale gas well wellbores, a gray correlation analysis on the data obtained on site was performed and it was determined that the correlations of CO2 partial pressure and content of sulfate-reducing bacteria were greater than 0.7, and thus these two factors were main controlling factors affecting corrosion. The effects of temperature, pressure, CO2 partial pressure, and sulfate reducing bacteria content on the corrosion rate of N80 and P110 samples were determined by dynamic corrosion evaluation test. Evaluation and optimization tests of corrosion inhibitors were carried out by corrosion weightlessness method. The results show that the corrosion inhibitor 2 had a good corrosion inhibition effect on N80 steel and P110 steel when the injection amount was 200 m/L, and the economic benefits were maximized at this time.
中图分类号 TG174 DOI 10.11973/fsyfh-202001007
所属栏目 应用技术
基金项目 国家自然科学基金项目(51404037)
收稿日期 2019/9/26
修改稿日期
网络出版日期
作者单位点击查看
联系人作者王长权(wonque@163.com)
引用该论文: LI Cheng,WANG Changquan,CHEN Xu,LU Jin,ZHANG Zhiquan,SHI Lihong. Corrosion Law and Protection Measures of Shale Gas Well Wellbores[J]. Corrosion & Protection, 2020, 41(1): 35
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】赵金洲.缺陷管道适用性评价技术[M]. 北京:中国石化出版社,2005.
【2】黎洪珍,罗立然,李娅,等. 油管腐蚀原因分析及腐蚀评价[J]. 天然气工业,2003,23(Z1):107-110.
【3】傅朝阳. 中原油田气井油管腐蚀因素灰关联分析[J]. 天然气工业,2000,20(1):74-77.
【4】王军,廉园园,赵升,等. 油田注入水细菌测定标准研究[J]. 辽宁化工,2018,47(10):1062-1064.
【5】王秀民,杜建平,仲为为,等. N80和P110钢在高温高压蒸汽中的耐蚀性[J]. 腐蚀与防护,2014,35(3):253-256.
【6】肖荣鸽,韩世聪,吕涛. 气液两相流管道内腐蚀与防护研究[J]. 热加工工艺,2015,44(12):64-67.
【7】SHI L,WANG C,ZOU C. Corrosion failure analysis of L485 natural gas pipeline in CO2 environment[J]. Engineering Failure Analysis,2014,36:372-378.
【8】QIU Z C. Major corrosion factors in the CO2 and H2S coexistent environment and the relative anti-corrosion method[J]. Petroleum Exploration & Development,2012,39(2):256-260.
【9】刘彤. SRB作用下X70钢缝隙腐蚀行为及机理研究[D]. 抚顺:辽宁石油化工大学,2014.
【10】熊福平,王军磊. 硫酸盐还原菌诱导应力腐蚀开裂研究进展[J]. 腐蚀科学与防护技术,2018,30(3):213-221.
【11】FERREIRA E S. Evaluation of the inhibitor effect of l-ascorbic acid on the corrosion of mild steel[J]. Materials Chemistry & Physics,2004,83(1):129-134.
【12】UMOREN S A,OBOT I B,MADHANKUMAR A,et al. Performance evaluation of pectin as ecofriendly corrosion inhibitor for X60 pipeline steel in acid medium:experimental and theoretical approaches[J]. Carbohydrate polymers,2015,124:280-291.
【2】黎洪珍,罗立然,李娅,等. 油管腐蚀原因分析及腐蚀评价[J]. 天然气工业,2003,23(Z1):107-110.
【3】傅朝阳. 中原油田气井油管腐蚀因素灰关联分析[J]. 天然气工业,2000,20(1):74-77.
【4】王军,廉园园,赵升,等. 油田注入水细菌测定标准研究[J]. 辽宁化工,2018,47(10):1062-1064.
【5】王秀民,杜建平,仲为为,等. N80和P110钢在高温高压蒸汽中的耐蚀性[J]. 腐蚀与防护,2014,35(3):253-256.
【6】肖荣鸽,韩世聪,吕涛. 气液两相流管道内腐蚀与防护研究[J]. 热加工工艺,2015,44(12):64-67.
【7】SHI L,WANG C,ZOU C. Corrosion failure analysis of L485 natural gas pipeline in CO2 environment[J]. Engineering Failure Analysis,2014,36:372-378.
【8】QIU Z C. Major corrosion factors in the CO2 and H2S coexistent environment and the relative anti-corrosion method[J]. Petroleum Exploration & Development,2012,39(2):256-260.
【9】刘彤. SRB作用下X70钢缝隙腐蚀行为及机理研究[D]. 抚顺:辽宁石油化工大学,2014.
【10】熊福平,王军磊. 硫酸盐还原菌诱导应力腐蚀开裂研究进展[J]. 腐蚀科学与防护技术,2018,30(3):213-221.
【11】FERREIRA E S. Evaluation of the inhibitor effect of l-ascorbic acid on the corrosion of mild steel[J]. Materials Chemistry & Physics,2004,83(1):129-134.
【12】UMOREN S A,OBOT I B,MADHANKUMAR A,et al. Performance evaluation of pectin as ecofriendly corrosion inhibitor for X60 pipeline steel in acid medium:experimental and theoretical approaches[J]. Carbohydrate polymers,2015,124:280-291.
相关信息