Service Tools

Compression Unloader

The Compression Unloader is designed as a high-pressure accessory for compression set packers.  The Unloader is run above the packer pinned in the open or closed position.  After the packer is run to setting depth, the procedures required to set the packer will automatically close the unloader.  With the packer set and the unloader closed, well operations may proceed.

When run above a compression set packer, the Compression Unloader is opened to allow differential pressure to equalize before releasing the packer below.

Special Features

  • The Compression Unloader can be pinned in the open or closed position
  • Allows equalizing of tubing/annulus pressure differential
  • When pinned in the open position, allows for fluid bypass through the ID of the packer to reduce swabbing of packer elements
Compression Unloader

Product Specifications

Tool OD
Tool ID
Thread Connections
(Box Up / Pin Down)
Part Number Technical Data
4-1/2 3.500 2.00 2-3/8 EUE 52845 PDF
5-1/2 4.25 2.50 2-7/8 EUE 52856 PDF
7 5.500 2.867 3-1/2 EUE 52873 PDF