Rotating double barrel core sampler

Details Rotating double barrel core sampler Rotating double barrel core sampler

E - Fixed Constructions

21

B

255/3, 166/5

E21B 25/04 (2006.01) E21B 4/02 (2006.01)

Patent

CA 1205456

ABSTRACT OF THE DISCLOSURE The present invention provides disclosure of a core sampler that includes a rotatably extending outer barrel containing a relatively non-rotating core barrel which is extendable with the outer barrel in response to drilling mud pressure into the material to be cored.

457868

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