The LiMARĀ® Shear Release Disconnect is designed to provide a mechanical release point within a Coiled Tubing BHA.

If a Coiled Tubing BHA becomes inadvertently stuck down hole, an overpull will shear a pre-determined number of shear screws to allow the upper section to disconnect from the lower assembly, leaving a standard GS internal type fish neck profile for future retrieval of the lower BHA section.

Download PDF


  • For use as a contingent release mechanism in a Coiled Tubing BHA


  • Available in a range of sizes to suit industry standard Coiled Tubing diameters and BHA’s
  • High torque rating
  • Large thru bore
  • Multiple shear screw options for operational flexibility
  • Short make-up length
  • Disconnect Sub fitted with standard GS type internal fish neck profile
  • Simple, robust design ensuring ease of operation for the end user
  • Selected components QPQ treated
  • Hexagonal flats for safe make-up & break-out
  • Connection options to suit customer requirements
  • Corrosion resistant materials
Assembly Part No. Actual OD Maximum ID Disconnect GS Profile Make up Length
146-1687-XXX-RX 1.687" 0.625" 1-1/2" 11.50"
146-1750-XXX-RX 1.750" 0.625" 1-1/2" 11.50"
146-2125-XXX-RX 2.125" 0.812" 2" 12.73"
146-2375-XXX-RX 2.375" 0.812" 2" 12.73"
146-2875-XXX-RX 2.875" 1.375" 3" 16.13"

XXX - Last 3 digits of part number denotes connection type - Please refer to the connection code data sheet. For additional sizes or further information please contact sales

Ask our team a question?

Contact us


Our highly skilled engineering and technical sales staff are on hand to offer customisable, fast-response solutions for your well servicing needs.

Contact us