The SA-2/SA-3 packer combines advantages of retrievable packer and the features of permanent packer .It provides for a broad range of applications, including production、water inject、zone isolation and work over remedial operation.
The packer is set with right-hand rotation while slacking off tubing weight. Right-hand rotation with slight tension applied to release the packer.
The SA-3 Packer is a version of the SA-2 that incorporates a three piece element system. The element system is bonded on to a one-piece system for increased swab-off resistance. The operational parameters are the same as an SA-2.
Hold the pressure from above and below, without relying on set-down weight, tubing tension or hydraulic anchor.
Provides tubing anchoring with tension applied.
Dovetail slips can prevent packer movement caused by differential pressure while allowing the landing of the tubing in tension, neutral or compression.
Packing elements compression is locked by ratcheting action of locking piece, also permitting directional rotation.