2.structure and working principle
2.1 Structural Features
it is mainly made up of the joints, hydraulic anchor, the center tube, sealing tube , cone, slip and friction, connectors and other components .
2.2 Works
The packer down to the predetermined location,pull up the tubing according to the depth of the well. and then forward decentralization it, to make slip support on the casing wall, and then continue to decentralize tubing, tubing weight on the packer compress packer pieces so as to seal the oil line space, reaching the packer setting purposes. When fracturing, the claw out of the hydraulic anchor, anchoring the
3. Technical features tubing, after relieving, the claw go back with effect of the spring.
When the underground work is completed, put up the tubing, load the packer ,the packer is releasing, then pull up of the tubing out off the well.
3.1.2 Sealing slip has been made surface carburized quenching with 20 watts Cr M n Ti, so that tube is easy to get stuck and hard to break down.
3.1.3 the degree of slip and cone is 20 °, which is conducive to both setting and releasing
