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Case Study

Latin American Operator Uses NRPs to Reduce Torque and Stick-Slip

Torque Limitation Using Undersized Rig 
Small rigs used to drill in remote locations tend to be limited by torque capacity.  Environmental and economic 
limitations do not allow for oil-based mud or lubricants.   
 
Stick-Slip Slows Drilling 
Stick-slip tended to require reduced WOB and thus ROP in the intermediate 12-1/4” section of the wells.  While the intermediate section tended to be only 5,000ft in length, the stick-slip problem was persistent across most wells in the field.   
 
Stick-Slip Reduced and Torque Held Steady 
As more NRPs were run into the hole, the stick-slip index reduced and the torque held steady. This allows for 
optimizing WOB and thus ROP.  WWT’s Non-Rotating Protectors (NRPs) reduce rotational reduce strain on the top drive, and allow for smaller drill pipe.   

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