Casing Running Tool (CRTi)

The OWS CRTi tools are designed for casing running or drilling with top drive equipped rigs to enable connection make-up, break-out, circulation and rotation, increasing the chance of getting casing to TD the first time. These tools are mechanically activated in tension and both rotational directions solely by top drive control using TAWG™ (Torque activated Wedge grip) technology.

This patent pending architecture puts control in the hands of the driller, increasing the success rate to get the casing installed the first time. Rig-in and rig-out steps are simple, intuitive and fast. This architecture has a proven track record in running over three million meters of casing.

Starting from the insertion diameter of the base tool, selectable sizes of integral jaw/dies are used to configure the CRTi tool to support gripping casing of increasing internal diameter (decreasing weight). Through the use of a patent pending extended reach die structure, the gripping diameter can be further increased to include casing sizes much greater than the base tool.

Features

CRTi-1 8 5/8" Specification Summary

CRTi Load Rated Cap. 695 tons (631 MTonnes)
CRTi Max design torque* 85,000 ft/lbs (115,245 N-m)
Circulation Pressure 5 000 psi
Total tool length 78" (2 meters)
Total stroke 75"
Minimum tool Diameter 8 5/8"
Maximum tool Diameter 26"
Through Hole 2"
Min operation air pressure 40 psi
Max operation air pressure 120 psi
Tool joint 6 5/8" REG BOX
Min operating temperature -20 Degrees Celsius (-40)

* Maximum operating torque is limited by TDS Connections

CRTi 8 5/8" Certification

DET NORSKE VERITAS (DNV–OS-E101) Tool design verification and load rating according to API 8C-PSL 1-2

  • 15 min rig up/rig out
  • Mechanically operated
  • Min equipment required
  • Push capability (120 ton) L
  • Minimal Maintenance N  
  • Driller in full control
  • Reduced HSE exposure
  • Hands free operation
  • Less equipment on site
  • No personnel in red zone
  • Wireless torque turn reading

 

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