| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: multiposition device for selective switching over of flow through packer spindle between opposite directions contains: packer with packer spindle and sealing element designed so that spindle is retained in underground location when sealing element is in seating position; housing of crossflow coupling including components moved relative to each other and adjusted for its selective attachment near upper part of mentioned retained independently packer spindle, at that housing of cross-flow coupling when it is attached near upper part of packer spindle is able to generate relative movement providing opening and closing of channel on housing of cross-flow coupling.EFFECT: reducing total length of device, orientation of device with higher accuracy.13 cl, 6 dwg |
