Sidewall sampling apparatus

Details Sidewall sampling apparatus Sidewall sampling apparatus

E - Fixed Constructions

21

B

166/6

E21B 25/04 (2006.01) E21B 49/04 (2006.01)

Patent

CA 1142080

Abstract of the Invention Apparatus for taking a sample of earth forma- tions surrounding a borehole. A core sampling projectile is provided which has a core-taking barrel with a frontal cutting edge and is releasable secured to a base member of relatively more mass than the barrel. The base member has an enlarged outer diameter annular abutment thereby limiting the depth of penetration of the core-taking barrel to a predetermined distance.

366404

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