1、Manual of PetroleumMeasurement StandardsChapter 12Calculation of Petroleum QuantitiesSection 2Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction FactorsPart 5Calculation of Base Prover Volume by Master Meter MethodFIRST EDITION, SEPTEMBER 2001REAFFIRMED,
2、AUGUST 2011Manual of PetroleumMeasurement StandardsChapter 12Calculation of Petroleum QuantitiesSection 2Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction FactorsPart 5Calculation of Base Prover Volume byMaster Meter MethodMeasurement CoordinationFIRST E
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14、Publisher, API Publishing Services, 1220 L Street, N.W., Washington, D.C. 20005.Copyright 2001 American Petroleum InstituteFOREWORDThis multi-part publication consolidates and presents standard calculations for the mea-surement of petroleum liquids using turbine or displacement meters. Units of meas
15、ure in thispublication are in International System (SI) and United States Customary (US Customary)units consistent with North American industry practices.This standard has been developed through the cooperative efforts of many individualsfrom industry under the sponsorship of the American Petroleum
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18、troleum MeasurementSubcommittee on Liquid Measurement. This standard shall become effective September2001, but may be used voluntarily from the date of the distribution. Suggested revisions areinvited and should be submitted to the general manager of the Measurement CoordinationDepartment, American
19、Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005.iiiCONTENTSPage1 PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . 13 ORGANIZATION OF STANDARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.1 Part 1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2 Part 2Calculation of Meter
21、ed Quantities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.3 Part 3Proving Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.4 Part 4Calculation of Base Prover Volumes by Waterdraw Method . . . . . . . . . 23.5 Part 5Calculation of Ba
22、se Prover Volumes by Master Meter Method . . . . . . . 24 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25TERMS AND SYMBOLS25.1 Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . 25.2 Definition of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 APPLICATION OF CHAPTER 12.2, PART 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 FIELD OF APPLICATION . . . . . . . . . . . . . . . . . .
24、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67.1 Applicable Liquids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67.2 Base Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25、 68 PRECISION, ROUNDING, AND DISCRIMINATION LEVELS. . . . . . . . . . . . . . . . 88.1 Rounding of Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88.2 Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . . . 89 CALIBRATION REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89.1 Unidirectional Displacement Field Provers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99.2 Bidirectional Displacement Field Provers. . . . . . . . . . . . .
27、. . . . . . . . . . . . . . . . . . 99.3 Open Tank Master Provers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109.4 Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109.5 Calculation Methods f
28、or Proving the Master Meter . . . . . . . . . . . . . . . . . . . . . . 1010 CORRECTION FACTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1110.1 Liquid Density Correction Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
29、0.2 Prover Correction Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1210.3 Combined Correction Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1310.4 Nominal K-Factors (NKF). . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . . . . . . . . . . . . 1411 RECORDING OF FIELD DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1411.1 Specified Discrimination Levels for Field Data . . . . . . . . . . . . . . . . . . . . . . . . . 1411.2 Discrimination Tables . . . . . . . .
31、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1412 CALCULATION SEQUENCE, DISCRIMINATION LEVELS, AND RULES FOR ROUNDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2012.1 Displacement Provers . . . . . . . . . . . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2012.2 Atmospheric Tank Provers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36vPage13 BASE PROVER VOLUME CALCULATION EXAMPLES. . . . . . . . . . . . . . . . . . . 3913.1 Example 1Displacement ProverUnidir
33、ectional Pipe Design . . . . . . . . . . . 3913.2 Example 2Displacement ProverBi-directional Pipe Design. . . . . . . . . . . . 5313.3 Example 3Displacement Pipe ProverUnidirectional Design . . . . . . . . . . . 7613.4 Example 4Displacement Pipe ProverUnidirectional Design . . . . . . . . . . . 90AP
34、PPENDIX A FLUID DENSITIES, VOLUMES AND COMPRESSIBILITY CORRELATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105Figures1 Typical Pipeline Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Master Meter Calibrati
35、on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Field Prover Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Flow Chart for Master Meter Calibration of ProversAverage Meter Factor Method . . .
36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Flow Chart for Master Meter Calibration of ProversAverage Data Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236 Flow Chart for Master Meter Calibration of Atmospheric
37、 TankAverage Meter Factor Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Tables1 Liquid Density Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Dimensional Discrimination LevelsProver Pipe Dimensions . . . . . .
38、. . . . . . . . 153 Temperature Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Pressure Discrimination Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Compressibility Factor Discrimination Levels. . . . . .
39、. . . . . . . . . . . . . . . . . . . . . . 156 Coefficients of Thermal Expansion for Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Modulus of Elasticity Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Correction Factor Discrimination Levels
40、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Volume Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1810 Pulse Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1811 L
41、iquid Viscosity Discrimination Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1812 Summary of the Standard Method vs. Alternate Calibration Method(s) . . . . . . . . 19A-1 Reference Guide for RHOb, CTS, F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42、106vi1Chapter 12Calculation of Petroleum QuantitiesSection 2Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction FactorsPART 5CALCULATION OF BASE PROVER VOLUMES BYMASTER METER METHOD1 Purpose1.1When most of the older standards were written,mechanical desk c
43、alculators were widely used for calculatingmeasurement documentation, and tabulated values were usedmore widely than is the case today. Rules for rounding andthe choice of how many figures to enter in each calculationstep were often made on the spot. As a result, different opera-tors obtained differ
44、ent results from the same data.1.2This multi-part publication consolidates and standard-izes calculations pertaining to metering petroleum liquidsusing turbine or displacement meters and clarifies terms andexpressions by eliminating local variations of such terms. Thepurpose of standardizing calcula
45、tions is to produce the sameunbiased answer from the given data. For different operatorsto obtain identical results from the same data, the rules forsequence, rounding and discrimination of figures (or decimalplaces) must be defined.2 Scope2.1This part provides standardized calculation methods forth
46、e quantification of liquids and the determination of baseprover volumes under defined conditions, regardless of thepoint of origin or destination or units of measure required bygovernmental customs or statute. The criteria contained inthis document allows different entities using various com-puter l
47、anguages on different computer hardware (or manualcalculations) to arrive at identical results using the same stan-dardized input data.2.2This document also specifies the equations for comput-ing correction factors, rules for rounding, including the calcu-lational sequence, and discrimination levels
48、 to be employedin the calculations. No deviations from these specified equa-tions are permitted, since the intent of this document is toestablish a rigorous standard. 3 Organization of StandardThis standard is organized into five separate parts. Part 1contains a complete general introduction to dyna
49、mic mea-surement calculations. Part 2 focuses on the calculation ofmetered quantities for measurement tickets. Part 3 applies tothe calculation of meter factors in proving operations andproving reports. Part 4 applies to the determination of baseprover volumes by the water draw method, and Part 5explains the calculation steps required to determine baseprover volume by the master meter method.3.1 PART 1INTRODUCTION3.1.1The base (reference or standard) volumetric determi-nation of metered quantities is discussed, along with the gen-eral terms required for solution
