Model Y211 Packer
Model
Y211 packer is a compression-set, pull-to-release packer used for selective
treatments including small volume fracturing, acidizing, zonal injection,
testing, casing leak locating, etc., in combination with a hydraulic anchor, it
could be used for fracturing operations with higher rate & pressure.
The
packer has a simple structure, the main components are high-performance elements,
slips and drag blocks installed on a sleeve, the sleeve could slide along two
guiding grooves (a long and a short one) on the mandrel that could be switched by
reciprocal movements of tubing. When the sleeve is in the longer groove, downward
movements of the tubing will expand the slips and then set the packer. A simple
straight pull is required to release the packer, the packer could be set again
without pulling out of hole and redressing.
The
Y211 packer is a reliable and fast solution to multiple zone treatments, the
high-performance is robust enough for multiple-time setting & release, and
it could be easily unset under rough wellbore conditions, which makes it almost
risk free to run.