连续油管作业中油管变形的判断方法  

Method for judging oil pipe deformation during coiled tubing operations

作　　者：刘磊 LIU Lei(Well Testing Company,CNPC Greatwall Drilling Company,Beijing 100101,China)

机构地区：[1]中国石油集团长城钻探工程有限公司测试分公司,北京100101

出　　处：《油气井测试》2024年第2期38-43,共6页Well Testing

摘　　要：连续油管作业中遇到的软阻、软卡现象会增大作业风险,而油管弯曲变形导致的连续油管软阻、软卡,其判断方式较难,传统的陀螺仪测井斜等方法也难以明确。采用排除法,通过循环冲洗、钢丝探查、连续油管钻磨等工艺依次排除井筒结蜡、沥青及结垢的可能性,判定油管弯曲,并用钢丝短工具串进一步验证,建立了连续油管作业中软阻、软卡的分析步骤和对应的处理方法。通过XX井的现场实践,应用连续油管作业中油管弯曲变形的判断方法,最终判定油管弯曲是导致连续油管遇卡的原因,并用相应的处理方法成功解卡。该方法可为同类型连续油管遇阻遇卡问题的处置提供借鉴。The occurrence of soft obstruction and soft sticking in coiled tubing operations increases operational risks.However,determining the presence of soft obstruction and soft sticking caused by bending deformation of the tubing poses great challenges,and traditional methods such as well deviation measurement with gyroscope are often inconclusive.In this study,a method based on exclusion was proposed.By sequentially eliminating the possibilities of wax deposition,asphaltene deposition,and scaling through techniques such as circulating washing,wireline probing,and coiled tubing milling,the tubing bending deformation was determined,and further verification was conducted using short wireline tools.Analytical steps and corresponding treatment methods for dealing with soft obstruction and soft sticking in coiled tubing operations were established.Through field practices in Well XX,through applying the method for judging tubing bending deformation in coiled tubing operations,the tubing bending was determined as the cause of coiled tubing sticking,which was successfully solved using appropriate treatment methods.This method can serve as a reference for addressing similar issues of obstruction and sticking encountered in coiled tubing operations.

关 键 词：油管弯曲 连续油管 软阻 软卡 钢丝作业 铅印 循环洗井 钻磨 

分 类 号：TE273[石油与天然气工程—油气井工程]