Well logging tool

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 47/00 (2006.01) E21B 23/10 (2006.01) E21B 23/14 (2006.01) E21B 34/06 (2006.01)

Patent

CA 2290894

The well logging tool comprises differential valve means allowing passage of fluid through said tool during logging operations on when the tool becomes jammed inside a drillpipe.

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