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Real Time Half Duplex Communications Wireless Gauge with Downhole Power Monitors Deep Well Gas Production The high-temperature, high-pressure system utilizes acoustic waves for communications, and lowpower electronics and sensors to acquire, and process in, real-time data related to production and geological formation parameters. by Scott Kruegel and Paul Tubel, Tubel Technologies Inc.; and Gary Covatch, National Energy Technology Laboratory/U.S. Department of Energy