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Title: Witnessing Orifice Meter Calibrations And Field Testing
Author: Chann Underwood
Source: 2008 International School of Hydrocarbon Measurement
Year Published: 2008
Abstract: We are far removed from the good old days of plus or minus 2% or when the most important thing to be considered in witnessing a meter test was where we were eating and whose turn it was to pay. With the cost of drilling, development and transportation steadily increasing, the producer, pipeline operator and distribution system owner are more conscious and concerned about the accuracy in which their product is bought and sold than ever before. The volatility of the market and the many different factors affecting the quality and quantity of the gas has made the custody transfer point critical in marketing this commodity on a day to day basis. In most cases a contract will be agreed upon by both parties detailing the particulars on how this transfer of natural gas is to be completed. The purpose of this paper is to outline the responsibilities of a companys representative and discuss some good practices for witnessing the transfer of this product.