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SFMC DSTJ（Double Shoulder Tool Joint）

                      
 
Pipe body torsional yield is always higher than the tool joint torsional yield. The unmatched torsional yield maybe involves the connection’s failure during drilling operation. SFMC DSTJ is effective to prevent those accidents.

Property

High torque resistance: SFMC DSTJ torsional yield is higher than API tool joint torsional yield to match the torsional yield of pipe body.

SFMC DSTJ is designed to interchange with API tool joint, and can be used with any kinds of drill tools, such as drill collar, heavy wall drill pipe.

Longer life & lower repair ratio than API tool joint.

Suitable for sour drilling

Interchangeability with API tool joint