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Title: Roles And Responsibilities Of Witnessing A Liquid Prover Calibration
Author: Kenneth Lancy
Source: 2017 International School of Hydrocarbon Measurement
Year Published: 2017
Abstract: The purpose of this paper is to give direction to those that have little or no experience with liquid hydrocarbon prover calibration. The results of this procedure will impact the custody transfer of product and could affect the accuracy of millions of transported barrels. The upmost importance and attention to detail must be stressed while witnessing the prover calibration process. This will ensure that mistakes and uncertainties are minimized. Why do we to calibrate meter provers? Being that there are many different types of meters manufactured all over the word, how do we know what one is right? The short answer the meter prover will ensure the accuracy of the meter. When we calibrate a meter prover we use water. Water as we all know has not changed in billions of years. We understand its properties, know how it will react in all situations and environments. Knowing that water is stable, safe, and there is an abundance of it, its the best choice for prover calibrations. That is why prover calibration is often referred to as a waterdraw. The prover calibration must be performed before the prover can be used in any measurement service. In the end it s all about the accuracy and performance of our metering systems.

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