尾管悬挂系统在高温、强碱、高盐环境失效分析与改进应用  

Failure analysis and improvement application of liner suspension system in high temperature,strong alkali and high salt environment

作　　者：田晓勇 张京华 蒋海涛 蒋本强 苟旭东 古青 宋剑鸣 Tian Xiaoyong;Zhang Jinghua;Jiang Haitge;Jiang Benqiang;Gou Xudong;Gu Qing;Song Jianming(Engineering Technology Research Institute,BHDC,Heibei 062252 Chine)

机构地区：[1]渤海钻探工程公司工程技术研究院,河北任丘062552

出　　处：《内蒙古石油化工》2024年第10期4-7,共4页Inner Mongolia Petrochemical Industry

基　　金：中石油渤海钻探公司局级重大研发项目-抗强碱、高盐腐蚀尾管悬挂系统研制(编号:2023ZD07F-03)。

摘　　要：针对QT-2井高温、强碱、高盐环境造成尾管悬挂器失效问题,分析了尾管悬挂系统在高温、强碱、高盐环境失效原因。并通过铝合金、黄铜、铸铁、13Cr、钢材、P110钢材、橡胶等材质在QT-2井原井泥浆高温滚动试验,进一步认识了高温、强碱、高盐环境对不同材料的腐蚀影响程度,为工具的后续改进应用提供了有力依据。通过采用P110、13Cr、黄铜、耐盐碱腐蚀高温氟橡胶等材质改进了尾管悬挂系统,现场应用证明,改进后的尾管悬挂系统具有很好的抗高温、强碱、高盐腐蚀功能。Aiming at the failure of liner hanger caused by high temperature。strong alkali and high salt environment in Well Qiantan 2,the failure causes of liner hanger system in high temperature,strong alkali and high salt environment are analyzed.Through the high temperature rolling test of aluminum alloy,brass,cast iron,13Cr,steel,P110 steel,rubber and other materials in the original well mud of Well Qiantan 2,the corrosion effect of high temperature,strong alkali and high salt environment on different materials is further recognized.which provides a strong basis for the subsequent improvement and applica-tion of tools.The liner suspension system has been improved by using P110.13Cr,brnss。salt and alkali resistant high temperature fluororubber and other materials.The field application has proved that the im-proved liner suspension system has good resistance to high temperature,strong alkali and high salt corro-sion.

关 键 词：尾管悬挂器 腐蚀 浮箍浮鞋 胶塞 

分 类 号：TE256.4[石油与天然气工程—油气井工程]