Y211 Single Set Oil Packer

Y211 packer
It can be widely used for zonal injection,extraction,leakage detection,squeezing,acid treatment and well texting.

Working principle:

Lifting the string and then lowing it according to the setting height,the centralizing block is against the casing wall under the action of the spring. When lift the string, the centralizer part of the packer is relatively displaced with the trajectory of central pipe,thus the slip ring moves along the track groove of the trajectory central pipe,moves from the upper dead point to the top dead center, the grip opens along the cone and fastened on the casing wall. At the same time, the setting pin is cut off under the string gravity, the upper joint and the trajectory of the center pipe move down together, compress the seal, larger the diameter, thereby isolating oil, casing annular space