Non-Rotating Safety Shear Sub

Safety sub for electric submersible pump (ESP) installations
Description

Applications

 

  • Used as a safety sub in ESP installations to prevent twisting of cables.

Features



  • Slim diameter maximizes annular flow area.
  • High-strength steel alloy stop-pins provide high anti-rotational torque values.
  • Multiple shear screw locations provide a wide range of shear settings.
  • Minimal differential area reduces pressure-caused stress on shear screws.
  • Undercut shear screw holes prevent cutting of O-ring during assembly.
  • Easily dressed.
  • Standard connections.
Technical Data Sheet Category Catalog

 

The Non-Rotating Safety Shear Sub was developed for use with stationary downhole equipment that develops rotational torque. The shear sub is installed in the tool string between the coiled tubing and the downhole tool. An example would be an ESP (electric submersible pump), run on small diameter coil, or polyethylene tubing, which upon startup, if  allowed to rotate, would cause twisting and subsequent failure of the power cable.

 

 

Tool OD

(in/mm)

 

Tool ID

(in/mm)

 

Neck OD

(in/mm)

 

Neck Length

(in/mm)

 

Top Connection

(in/mm)

 

Bottom Connection

(in/mm)

 

Shear Values

2

(50.80)

0.625

(15.88)

2

(50.8)

5

(110.25)

1.25

(31.75)

Female

1.5

(38.10)

Male

4 screws @ 50 bs/ Screw

Max Shear = 2200 lbs



 

 

Non-rotating Safety Shear Sub

 

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