In this paper,the main reasons of seal failure in this operation are analyzed by introducing the factors that affect sealing grease consumption and flow pressure drop of sealing grease in the grease injection pipeline.At the same time,the paper puts forward the theoretical parameter setting of sealing factors such as seasonal temperature change,cable structure and old and new degree,and gas in the well,which can effectively solve the problem of seal failure in this operation.
关键词
电缆测井/防喷装置/流管/偏心环形缝隙/圆管层流
Key words
e-line logging/pressure control equipment/flow tube/eccentric annular gap/laminar flow in circular tubes