TREA

characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

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Industry

  • CPC
  • E21B10/64
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B10/00Drill bits

Current Industry

E21B10/64characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
Industries