STREAM SWITCH Russian patent published in 2022 - IPC E21B34/06 E21B43/14 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil industry and can be used to remove gas from the annulus when extracting the fluid. The flow switch is placed as part of the packer device with the formation of an annular space for communication-separation of the above-packer and under-packer annular spaces bypassing the main sealing element. It contains a cylindrical body, upper and lower switching mechanisms and is installed with the possibility of moving along the packer device shaft due to the interaction of the activating mechanism with the switching mechanisms. Switching mechanisms contain external and internal collets. The inner collet is located coaxially in the outer collet with the possibility of axial movement upon contact with the activating mechanism and return when its impact is terminated.

EFFECT: invention provides expansion of the technical capabilities of the packer device with the possibility of closing the radial bypass channels and switching the direction of flows inside the packer device without removing it from the well; increasing the efficiency of gas removal at any GOR from the under-packer annulus to the above-packer annulus bypassing the sealing element.

6 cl, 7 dwg