TREA

using exhaust air from the drilling motor for blowing off the dust at the borehole entrance

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Industry

  • CPC
  • E21B21/012
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B21/00Methods or apparatus for flushing boreholes

Current Industry

E21B21/012using exhaust air from the drilling motor for blowing off the dust at the borehole entrance
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