78070988
Jun 26, 2001
Oct 8, 2002
POWER OPERATED DOWNHOLE TOOLS USED FOR THE DRILLING OF OIL AND GAS, NAMELY POWER OPERATED DRILL BITS, REAMERS, CUTTERS,JUNK SUBS AND DEBRIS CATCHERS; POWER OPERATED WELL CLEANING DOWNHOLE TOOLS, NAMELY POWER OPERATED WIPERS, SCRAPERS,BRUSH TOOLS, POLISHERS AND SCOURERS FOR MAINTAINING A CLEAN INTERIOR OF A CASING OR LINER WITHIN A WELL BORE; POWER OPERATED FLUID FILTERS FOR SELECTIVELY FILTERING AND REMOVING SOLIDS FROM DOWN HOLE FLUIDS; POWER OPERATED FLUID CIRCULATORS THAT CAUSE DOWNHOLE FLUID TO IMPACT THE INTERIOR OF THE CASING OF A LINER WITHIN A WELL BORE TO PROVIDE A CLEANING ACTION AND WHICH SELECT A PATH FOR FLUID TRAVEL IN THE CASING OR A LINER WITHIN A WELL BORE; POWER OPERATED DOWNHOLE TOOLS FOR ISOLATING ZONES OR CREATING BARRIERS IN WELL CASINGS, NAMELY ZONAL ISOLATION PACKERS, MUD PACKERS, PACKER INSTALLERS,INFLATABLE PACKERS AND PACKER SETTERS
Machinery