Casing leakage in brine wells is the most common accident in rock salt mines.Wan 207 well has the problems of casing leakage and wellbore blockage at the same time,and the downhole situation is complicated.In order to restore the normal production of brine wells and ensure the quality of workover,this paper analyzes the causes of casing leakage and wellbore blockage,adopts the leak detection methods of temperature logging and flow logging,strengthens the plugging measures,optimizes the casing string structure design,and skillfully uses the idea of desalting pipe to implement the trial production of brine wells.The successful repair of Wan 207 well casing leakage can provide important reference for similar projects.
关键词
卤井套管穿漏/测井/堵漏/降咸管
Key words
leakage of brine well casing/logging/plugging/salt-reducing pip
维普
万方数据