TREA

Testing the nature of borehole walls Formation testing Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

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Industry

  • CPC
  • E21B49/00
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING

Current Industry

E21B49/00Testing the nature of borehole walls Formation testing Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Sub Industries

E21B49/001specially adapted for underwater installations E21B49/003by analysing drilling variables or conditions E21B49/005Testing the nature of borehole walls or the formation by using drilling mud or cutting data E21B49/006Measuring wall stresses in the borehole E21B49/008by injection test; by analysing pressure variations in an injection or production test E21B49/02by mechanically taking samples of the soil E21B49/025of underwater soil E21B49/04using explosives in boreholes using projectiles penetrating the wall E21B49/06with side-wall drilling tools pressing or scrapers E21B49/08Obtaining fluid samples or testing fluids, in boreholes or wells E21B49/081with down-hole means for trapping a fluid sample E21B49/082Wire-line fluid samplers E21B49/083Samplers adapted to be lowered into or retrieved from a landing nipple E21B49/084with means for conveying samples through pipe to surface E21B49/086Withdrawing samples at the surface E21B49/087Well testing E21B49/088combined with sampling E21B49/10using side-wall fluid samplers or testers
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