Service Tools

Model “H” Hydraulic Setting Tool

The Model “H” Hydraulic Setting Assembly (HST) is a hydraulic setting tool designed for setting packers and plugs without pipe manipulations. It is used to set packers and plugs that are normally set with a Model “E-4” Wireline Pressure Setting Assembly (or similar wireline setting equipment). The same adapter kit that is used on wireline can be used with the Model “H” HST.

The Model “H” HST and packer (or plug) is run in on the tubing to the desired setting depth and a ball is dropped to the HST. Pressure is applied to close the fill ports, which also opens the setting pistons to pressure. As pressure is applied, force is transmitted to the packer (or plug) to set. Tubing tension can also be applied to supplement the setting force generated by the pressure applied.

The standard setting tool comes with three pistons, but additional pistons can be added to reduce setting pressure.

Special Features

  • Large internal by-pass
  • Tubing fills automatically as HST is run in the hole
  • Premature setting is prevented by means of a shear screw in the cross link sleeve
  • Ported top sub permits circulation through the HST
  • Use existing wireline adapter kits
Model “H” Hydraulic Setting Tool