咪唑啉类缓蚀剂在油井腐蚀治理中的应用研究  

Research on Application of Imidazoline Corrosion Inhibitors in Oil Well Corrosion Control

作　　者：李倩[1,2] 韩项勇 王君秋[3] 张兵 王兴伟 何丕祥 LI Qian;HAN Xiangyong;WANG Junqiu;ZHANG Bing;WANG Xingwei;HE Pixiang(Oil Production Technology Research Institute,PetroChina Dagang Oilfield Company,Tianjin 300280,China;Key Laboratory of Tertiary Oil Recovery and Oilfield Chemistry,PetroChina Dagang Oilfield Company,Tianjin 300280,China;Third Oil Production Plant,PetroChina Dagang Oilfield Company,Tianjin 300280,China;Science and Technology Information Office,PetroChina Dagang Oilfield Company,Tianjin 300280,China)

机构地区：[1]中国石油大港油田公司采油工艺研究院,天津300280 [2]中国石油大港油田公司天津市三次采油与油田化学企业重点实验室,天津300280 [3]中国石油大港油田公司第三采油厂,天津300280 [4]中国石油大港油田公司科技信息处,天津300280

出　　处：《天津科技》2023年第11期45-48,51,共5页Tianjin Science & Technology

摘　　要：大港油田南部地区,由于地层水矿化度高、硫化氢含量高,导致油井在生产过程中因腐蚀出现杆断、管漏现象,严重影响油井正常生产。通过对造成杆断、管漏等腐蚀因素进行分析和现场缓蚀剂试验评价,确定了最佳加药量和加药周期:现用的咪唑啉类缓蚀剂最佳缓蚀浓度为30~160 mg/L,加药周期可延长1~2 d。通过优化加药制度、延长加药周期,实现了油井腐蚀治理,延长了单井检泵周期。In the southern area of Dagang Oilfield,due to the high salinity and hydrogen sulfide content of the formation water,rod breakage and pipe leakage occur in the production process of oil wells due to corrosion,which seriously affects the normal production of oil wells.Through the analysis of corrosion factors in oil wells and the evaluation of corrosion inhibitors on site,it is found that the optimal corrosion inhibition concentration of imidazoline corrosion inhibitors is 30 mg/L to 160 mg/L,and the dosing cycle can be extended by 1 to 2 days.By optimizing dosing system and prolonging dosing cycle,corrosion control in oil wells is realized and the single-well pump inspection cycle is prolonged.

关 键 词：大港油田 油井 腐蚀 缓蚀剂 检泵周期 

分 类 号：TE39[石油与天然气工程—油气田开发工程]