APPARATUS AND EQUIPMENT FOR USE IN OIL AND GAS WELLS FOR THE EXPLORATION AND PRODUCTION OF OIL AND GAS, NAMELY, TEMPERATURE GAUGES, FLOW METERS, ELECTRICAL AND ELECTRONIC FLUID CONTROL EQUIPMENT, BATTERIES, FLOW CONTROLS, ELECTRIC GENERATORS, REGULATORS; APPARATUS AND EQUIPMENT FOR USE IN OIL AND GAS WELL COMPLETION AND INTERVENTION, NAMELY, TEMPERATURE GAUGES, FLOW METERS, ELECTRICAL AND ELECTRONIC FLUID CONTROL EQUIPMENT, BATTERIES, FLOW CONTROLS, ELECTRIC GENERATORS, REGULATORS; APPARATUS ...