Reusable Electrical Downhole Packer

In response to the problems of mechanical packer seating pressure control and repeated seating seal cylinder damage, which significantly reduces the stability of the packer, the horizontal well electronically controlled packer has been developed, which can be seated and unsealed at regular intervals or in real time, and can realize the sealing of any layer section. The design of the packer takes into account the repeated seating times of the horizontal section and the pressure-bearing performance of the seal, especially the cooperation between the micro-motor and the micro-pump to ensure the maximum output torque and the compression seating of the packer cartridge in the permitted casing space. The performance of the electronically controlled packer in terms of temperature and pressure resistance, output torque and seating thrust was evaluated through indoor tests, and the relevant performance indexes all met the design requirements.