drill collar for oil and gas

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Description

Drill collar is important parts of drill stem,which supply weight on drill bit during drilling.

Classification:

  1. Standard steel drill collars.It’s round shape and magnetic steel.
  2. Non-magnetic drill collars.It’s Non-magnetic material.
  3. Spiral drill collars.There is spiral groove on the body of collar.

Specification:

drill collar

Specification of drill collars