Долота

Bit application chart

Bit applications

MD MiniMD KHD YC HJ/HJT GJ/GJT HA/HAT

GA/GAT

High RPM

       

 

High temperature

     

 

High WOB

           

 

Highly abrasive

       

 

Slim hole

       

 

Hard formaction-medium & low RPM

           

 

Hard formaction high RPM

         

 

Common formation

Bit structure features

Bit applications

MD MiniMD KHD YC HJ/HJT GJ/GJT HA/HAT

GA/GAT

Journal bearing

       

 

Roller bearing

         

Floating bearing

             

Bushing bearing

 

           

Roller-journal bearing

 

           

Metal face sealed

     

 

Non-sealed bearing

           

 

Rubber O-ring sealed

       

Enhanced gage protection

         

 

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