BECFIELD

APPARATUS AND DEVICES FOR THE PRODUCTION OF NATURAL GAS AND CRUDE OIL, NAMELY, MECHANIZED DRILLING AND PRODUCTION RIGS, PRODUCTION CASINGS AND PRODUCTION TREES; POWER-OPERATED MACHINE AND MACHINE TOOL PARTS FOR EARTH DRILLING AND DEEP DRILLING, NAMELY, DRILL BITS, DRILLS, UNDERREAMERS, DEFLECTORS, DOWNHOLE ROTARY DRILLING MOTORS, PACKERS, ARTICULATED DRILL STINGS, NON-MAGNETIC DRILL COLLARS AND PARTS THEREFOR, DOWNHOLE TURBINES AND ELECTRICAL GENERATORS FOR USE IN DIRECTIONAL DRILLING

INSTRUMENTS FOR RECORDING AND DIRECTIONAL DRILLING, NAMELY, STEERING APPARATUS, BOREHOLE NAVIGATORS, PROBES, WELLBORE INCLINOMETERS, DATA RECORDERS FOR USE IN WELLS, ELECTRONIC SENSORS AND RECORDERS FOR RECORDING GAMMA-RAY ACTIVITY, ELECTRONIC UNITS WHICH MEASURE INCLINATION AND AZIMUTH OF THE BOREHOLE, ROLL ANGLE OR TOOL FACE OF A DOWNHOLE DRILLER MOTOR, DOWNHOLE TEMPERATURE, DOWNHOLE PRESSURE GAMMA-RAY AND ELECTRIC CONDUCTIVITY OF DOWNHOLE FORMATION WHILE DRILLING, SIGNAL TRANSMITTERS, AND MUD PULSE TELEMETERS; GEOPHYSICAL AND GEOLOGICAL DEVICES FOR DRILLING OPERATIONS, NAMELY, SEISMOGRAPHS, MAGNETOMETERS, GRAVITY METERS, ACCELEROMETERS AND PARTS THEREFOR

DEEP WELL DRILLING FOR PRODUCTION OF NATURAL GAS AND CRUDE OIL; HORIZONTAL DRILLING OF THE HORIZONTAL UNDERPINNING OF EXISTING BUILDINGS, ROADS, RIVER COURSES, FOR LAYING ELECTRICAL AND TELECOMMUNICATIONS CABLES; DIRECTIONAL DRILLING SERVICES

TESTING WELL HOLES FOR LEAKS-OFF AND YIELD OF THE FORMATION; WELL HOLE SURVEYING AND NAVIGATING SERVICES FOR WELL HOLE DRILLING OPERATIONS; GEOPHYSICAL AND GEOLOGICAL MEASURING SERVICES, NAMELY, MEASURING CALIBER AND COURSE OF BOREHOLES, GAMMA-RAY, ELECTRIC CONDUCTIVITY AND STRENGTH OF BOREHOLE FORMATIONS