GB/T 17747.1-1999
Natural gas--Calculation of compression factor--Part 1: Introduction and Guidelines (English Version)

Standard No.

GB/T 17747.1-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2012-05

Replace By

GB/T 17747.1-2011

Latest

GB/T 17747.1-2011

Scope

This standard specifies the calculation method for the compression factor of natural gas, natural gas containing artificial inclusions and other similar mixtures that exist only in gaseous state. The "Calculation of Natural Gas Compressibility Factor" standard includes 3 parts. Part 1 includes the introductory and accounting for the calculations described in Parts 2 and 3. Usually the operating temperature of gas transmission and distribution is 263 ~ 338K (about -10°C ~ 65°C), and the operating pressure does not exceed 12MPa. Within this range, the expected uncertainty for both calculations is approximately ±0.1%, excluding the uncertainties of the input data including the associated pressure and temperature. Note 1: The pipeline gas term used in this standard refers to the concise term used for the gas that has been processed to be used as industrial, commercial and residential fuel. In 5.1.1, some quantitative criteria for pipe transportation are provided for the messenger, but they are not used as temperament standards for pipe transportation. The AGA8-92DC calculation method provided by GB/T 17747.2 is also applicable to a wider range of temperatures and higher pressures, including a wider category of natural gas including wet gas and sour gas, such as in gas reservoirs or underground storage conditions, or in natural gas vehicle (NGV) applications, with increased uncertainties. The SCERG-88 calculation method provided by GB/T 17747.3 is applicable to gases with a content higher than that commonly found in pipeline gas. The method can also be applied over wider temperature and pressure ranges, but with increased uncertainty. Under specified conditions, the gas temperature must be above the water dew point and the hydrocarbon demand point, and the two calculation methods are valid. GB/T 17747.2 and GB/T 17747.3 give all the equations and numerical values required by the AGA8-92DC and SGERG-88 calculation methods. For verified computer programs, see Appendix B of GB/T 17747.2 1009 and GB/T 17747.3-1999.

GB/T 17747.1-1999 history

• 2011 GB/T 17747.1-2011 Natural gas.Caculation of compression factor.Part 1: Introduction and guidelines
• 1999 GB/T 17747.1-1999 Natural gas--Calculation of compression factor--Part 1: Introduction and Guidelines

GB/T 17747.1-1999 -All Parts