Development and Application of Electric Actuated Downhole Intelligent Switching Tool

Conventional pure mechanical sliding sleeve switch tools are limited by wellbore size and series difference requirements, and most of them can only be opened for a single time, unable to meet the operating conditions of requiring remote intelligent control and repeated switching. Its field application has certain limitations. In order to solve the above deficiencies and further improve the automation and intelligent level of sliding sleeve switch tools, a kind of electric-driven downhole intelligent switch tool is designed and developed. The intelligent switch tool has the advantages of unified internal diameter, no series difference limit in multiple applications, infinite pole string operation, remote control and repeated switching and so on. Through laboratory test and field test, the reliability of the intelligent switch tool is further verified. The intelligent switch tool can realize repeated switching and infinite pole string operation, greatly improving the flexibility and efficiency of field construction operations, reducing labor intensity and operating costs, and it has broad application prospect.