7 Automation control, electrical and instrumentation systems; apparatus for the treatment and processing of oil or gas, namely, wellhead tie-in and flow lines, production separators, dehydrators, dehydration systems, desalters, gas sweetener systems, compression packages, gas odorizing skids, LPG/NGL extraction plants, hydrocarbon recovery systems, fuel gas conditionings systems, as traps, PIG launchers/receivers, liquefied oxygen plants, liquefied nitrogen plants, anti-foam injection systems, heaters, hydrocyclones, IGF vessels, phase separators, desanders, flare systems and vessels, degassing equipment, settling tanks/ gravitational treaters, metering packages, storage tanks, sensors, valve actuators, production units heating systems, pumping systems, circulating systems, filtration systems, chemical treaters, dosing systems, injection systems, pH control systems, corrosion inhibiting systems; chemical phase separators; brine concentrators; machinery for reducing the hardness of water; machinery for increasing the concentration of brine, crystallizers; burner management systems