78070075
Jun 20, 2001
Apr 8, 2003
DOWNHOLE POWER TOOLS FOR USE IN THE OIL AND GAS WELL INDUSTRY, NAMELY, DRILL BITS; THREADED TUBULAR DRILL PIPE CONNECTORS; DOWNHOLE MOTORS; PACKERS; PERFORATION AND COMPLETION TOOLS AND DOWNHOLE PRODUCTION PUMPS; ROTARY CLOSED LOOP DRILLING AND FORMATION EVALUATION SYSTEMS CONSISTING PRIMARILY OF A DRILL BIT, A STEERING UNIT, MEASUREMENT-WHILE DRILLING PLATFORM COMPRISING FORMATION SENSORS; WELL SERVICING UNITS WITH VARIOUS ASSEMBLIES FOR CLEANOUT, DEEPENING OR DRILLING IN WITH CABLE TOOLS AND FOR ROTARY AND CORE DRILLING OPERATIONS
Machinery