© 2019 Department of Petroleum Resources. All rights reserved Department of Petroleum Resources (DPR) PROCEDURE GUIDE

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PROCEDURE GUIDE FOR DETERMINATION OF THE VOLUME OF PETROLEUM AND 
PETROLEUM PRODUCTS BY DYNAMIC FLOW MEASUREMENT –GAS METERING 78 
1.1 ORIFICE PLATE INSTALLATION REQUIREMENT ....................................................... 79 
1.2 INTRODUCTION ....................................................................................................... 79 
1.3 General .................................................................................................................... 79 
1.4 Flange taps .............................................................................................................. 79 
1.5 Temperature measurement.................................................................................... 79 
1.6 Pressure measurement ........................................................................................... 80 
1.7 Flow measurement ................................................................................................. 80 
1.9 Inspection and Maintenance .................................................................................. 81 
1.10 Orifice plate specifications .................................................................................... 82 
1.11 CORIOLIS METER INSTALLATION REQUIREMENT ................................................. 82 
1.12 Introduction .......................................................................................................... 82 
1.12.1 General Requirements ....................................................................................... 83 
1.12.1.1 Gas quality ...................................................................................................... 83 
1.12.1.2Temperature measurement ............................................................................ 83 
1.12.1.3 Pressure measurement ................................................................................... 83 
1.12.1.4 Vibration and Electrical noise ......................................................................... 83 
1.12.1.5 Piping Configuration ....................................................................................... 83 
1.12.1.6 Mounting ........................................................................................................ 83 
1.12.2 Orientation ......................................................................................................... 83 
1.12.3 Minimum Performance Requirements .............................................................. 83 
Repeatability: ................................................................................................................ 83 
1.12.4 Field Meter Validation ....................................................................................... 84 
1.12.5 Meter Transmitter Verification .......................................................................... 84 
1.12.4.2 Coriolis Sensor Verification ............................................................................. 84 
1.12.4.3 Temperature Verification ............................................................................... 84 
1.12.4.4 Density verification ......................................................................................... 84 
1.12.4.5 Meter Zero Verification .................................................................................. 84