Downhole stabilisers

Details Downhole stabilisers Downhole stabilisers

E - Fixed Constructions

21

B

255/28

E21B 17/10 (2006.01) E21B 4/00 (2006.01)

Patent

CA 1335500

There is described a downhole stabiliser having a number of spiral fin-like blades. Each blade is provided with a pocket each of which carries an omni- directional rolling element bearing in the form of a ball which is engaged against the wall of a drilled hole.

593631

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