Physical property measurement instruments for field and laboratory analyses in the energy industry, namely, natural gas moisture analyzers, natural gas heating value chromatograph, hydraulic deadweight pressure testers, liquid densitometers, gas gravitometers, gas chromatographs; instruments for the measurement of physical properties of oil/gas well reservoir fluids, oilfield cements, drilling fluids/and stimulation fluids, namely, consistometers, acoustic cement analyzers, viscometers rheometers, formation response testers, permeameters, corrosion analyzers, cement fluid migration analyzers, phase behavior analyzers. Rheology and Water Analysis Instruments, Viscometers, Laboratory Filter Presses, Spring Balances, Emulsion Testers, Consistometers for Measuring Flow Properties Under Selected Pressures and Temperatures, Resistivity Meters, Mud Stills, and Parts for All of the Above; Accessories for Consistometers, namely, Pyrometers and Strip Chart Recorders; Accessories for Viscometers, namely, Controlled Temperature Cups, Calibrators, Time Base Generators, and Carrying Cases. Computer software for analyzing geophysical data; geophysical measuring equipment;, namely, ultrasonic velocity measurement systems, laboratory rock deformation apparatus, ultrasonic transducers, electrokinetic sensors, well logging sonic tools, rock core resistivity apparatus, permeability transducers, and resistivity transducers, computer software