Inventor
BALLANTYNE RAY
US3 patents
Patents
3 patentsUS7730967B2Jun 8, 2010
Drilling wellbores with optimal physical drill string conditions
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US6009948AJan 4, 2000
Resonance tools for use in wellbores
BAKER HUGHES INC109 citations96
US7306056B2Dec 11, 2007
Directional cased hole side track method applying rotary closed loop system and casing mill
BAKER HUGHES INC35 citations89