Rotary/drag bit with optimised secondary/backup cutters
MICHAEL L DOSTER, WILLIAM H HEUSER, MATTHEW RAY ISBELL, MARK W DYKSTRA, RUDOLF C O PESSIER
Year of Publication 01.05.2002
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Year of Publication 01.05.2002
Patent
STRUCTURE DE FORAGE DE FORMATIONS SOUTERRAINES
PESSIER RUDOLF C.O, ISBELL MATTHEW R, DOSTER MICHAEL L, DYKSTRA MARK W, HEUSER WILLIAM H
Year of Publication 01.06.2004
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Year of Publication 01.06.2004
Patent