石油测量标准手册.第12章.石油量化计算.第2节.用动态测量法和容量校准因素计算石油量化.第1部分.介绍.

详细信息   

• 标准号：API MPMS 12.2.1 ERTA-2009
• 发布日期：2009-07-01
• 英文题名：Manual of Petroleum Measurement Standards Chapter 12 - Calculation of Petroleum Quantities Section 2 - Calculation of Petroleum Quantities Using Dynamic Measurement Methods and Volumetric Correction Factors Part 1 - Introduction
• 英文主题词：Calculation ; Correction factors ; Dynamic ; Measurement ; Measuring methods ; Petroleum ; Quantities ; Volumetric ; Computation ; Titrimetric ; Motional
• 标准状态：现行
• 发布单位：US-API
• 国际标准分类号：75.180.30
• 载体形态：2P.;A4
• 中国标准分类号：E12
• 国别：美国石油学会

文摘

This document provides standardized calculation methods for the quantification of liquids and the determination of base prover volumes under defined conditions, regardless of the point of origin or destination or the units of measure required by governmental customs or statute. The criteria contained in this document allow different entities using various computer languages on different computer hardware (or manual calculations) to arrive at identical results using the same standardized input data. The publication rigorously specifies the equations for computing correction factors, rules for rounding, calculational sequence, and discrimination levels to be employed in the calculations. No deviations from these specifications are permitted since the intent of this document is to serve as a rigorous standard. Purpose When most of the older standards were written, mechanical desk calculators were widely used for calculating measurement documentation, and tabulated values were used more widely than is the case today. Rules for rounding and the choice of how many figures to enter in each calculation step were often made on the spot. As a result, different operators obtained different results from the same data. This five-part publication consolidates and standardizes calculations pertaining to metering petroleum liquids using turbine or displacement meters and clarifies terms and expressions by eliminating local variations of such terms. The purpose of standardizing calculations is to produce the same unbiased answer from the given data. So that different operators can obtain identical results from the same data, the rules for sequence, rounding, and discrimination of figures (or decimal places) have been defined.