7
Machines and machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); agricultural implements other than hand-operated; incubators for eggs.
automated pipe tripping apparatus, namely, an outer frame consisting of one or more vertical supports and an inner frame consisting of tripping slips including forcing rings, slip jaws, iron roughnecks, fixed jaws, breakout jaws, pipe spinner, mud bucket; drills, drill bits, drill heads and drill strings for use in drilling oil or gas wells and pumping oil
9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
logging tools, namely, computer hardware and software to vary speed of a tubular member moving into or out of a wellbore, to define a tripping speed, to vary a tripping speed in response to pressure variations within the wellbore as measured by one or more pressure sensors coupled to a tubular member positioned within a wellbore of an oil or gas well
37
Building construction; repair; installation services
installation, removal, repair, and maintenance of drilling machines and drilling tools in connection with drilling oil and gas wells for others; drilling of oil or gas wells for others; installation, removal, repair, and maintenance of automated pipe tripping apparatus for conveying drilling tools in connection with drilling oil or gas wells for others; installation, removal, repair, and maintenance of drills, drill bits, drill heads, and drill strings in connection with drilling oil or gas wells for others; oil and gas drilling services
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software
analysis for oil and gas field exploration