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Title: Liquid Flow Provers
Author: Darin L. Johnson
Source: 2008 International School of Hydrocarbon Measurement
Year Published: 2008
Abstract: The petroleum industry has used conventional pipe provers for on line calibration of liquid flow meters for over 40 years. With the widespread use of turbine meters, positive displacement meters, and liquid ultrasonic meters for custody transfer, accurate measurement is more dependent on frequent proving. Thus the industry will continue to demand advanced provers and proving techniques. The author will discuss the aforementioned subject with regard to both bidirectional and unidirectional pipe provers. In the last several years, a number of innovations have come to the forefront that enhance the reliability of pipe provers, reduce their size, make them more accurate, and increase their value to the end users. A description of the operational principles of pipe provers and the enhancements that are now available in terms of prover mechanical configuration and electronic instrumentation will be described in detail. In addition, information will be provided concerning reliability, the design and use of sophisticated computer control systems for automated proving, and the integration of pipe provers into metering systems.