78166074
Sep 19, 2002
COMPUTER HARDWARE AND RELATED COMPUTER SOFTWARE FOR USE IN MONITORING RIG PERFORMANCE PARAMETERS, INCLUDING--HOOK LOAD, WEIGHT ON BIT, PENETRATION RATE, ROTARY RPM, ROTARY TORQUE, PIT VOLUME, RETURN FLOW AND RELATED PARAMETERS, DURING THE OIL, GAS AND GEOTHERMAL DRILLING PROCESS
Electrical and Scientific Apparatus