Drill Stop Collar / Slip-on Stop Collars / Hinged Stop Collars
Features of hinged stop collars include:
●The hinged stop collars, when properly installed can hold up to 7,000 lb. of force.
●The hinged stop collar can be easily installed to casing.
●Friction stop collar are used adequately when the condition of the well is normal.
●Hinged set-screw stop collar are used for increasing holding force. It is first places and centered on the pipe. Then through the open hinge, a nail is installed, followed by tightening the set screw uniformly.
These are specifically designed to hold up to 15,000 lb of force.
Features of slip-on stop collars include:
●Onto the end of casing, slip-on set-screw stop collar is slipped to the desired location, up to the top of the joint.
●Slip-on set-screw stop collar are then tightened around 35 ft-lbf.
●The force that slip-on set-screw stop collar can hold is up to 20,000 lb.
●These are specifically designed foe the installation of cement baskets and different designed centralizers as well as for close-tolerance liner jobs and are available in all casing sizes.
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>>Spiral nail design