TREA

Apparatus for obtaining or removing undisturbed cores

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Industry

  • CPC
  • E21B25/00
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING

Current Industry

E21B25/00Apparatus for obtaining or removing undisturbed cores

Sub Industries

E21B25/005Above ground means for handling the core E21B25/02the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe E21B25/04the core receiver having a core forming cutting edge or element E21B25/06the core receiver having a flexible liner or inflatable retaining means E21B25/08Coating, freezing, consolidating cores Recovering uncontaminated cores or cores at formation pressure E21B25/10Formed core retaining or severing means E21B25/12of the sliding wedge type E21B25/14mounted on pivot transverse to core axis E21B25/16for obtaining oriented cores E21B25/18the core receiver being specially adapted for operation under water
Industries