GB/T 35065.2-2023 English PDF

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GB/T 35065.2-2023: Wet natural gas flow measurement - Part 2: Test and evaluation method of flow meter
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Similar standards

GB/T 23258   GB/T 21447   GB 50341   GB/T 43926   GB/T 35068   GB/T 35065.1   

Basic data

Standard ID: GB/T 35065.2-2023 (GB/T35065.2-2023)
Description (Translated English): Wet natural gas flow measurement - Part 2: Test and evaluation method of flow meter
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E98
Classification of International Standard: 75.180.30
Word Count Estimation: 30,341
Date of Issue: 2023-12-28
Date of Implementation: 2024-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 35065.2-2023: Wet natural gas flow measurement - Part 2: Test and evaluation method of flow meter

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 75:180:30 CCSE98 National Standards of People's Republic of China Wet natural gas flow measurement Part 2: Flowmeter testing and evaluation methods Published on 2023-12-28 2024-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee

Table of contents

PrefaceⅠ Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 2 4:1 Laboratory testing 2 4:2 Field test 2 5 Test setup and media 2 5:1 Test Setup 2 5:2 Media 4 6 Test conditions 5 6:1 Test environment conditions 5 6:2 Installation conditions 5 7 Testing process 5 7:1 Laboratory testing 5 7:2 Field Test 7 8 Data processing 8 8:1 Laboratory data processing 8 8:2 On-site evaluation11 9 Evaluation methods 11 9:1 Evaluation Principles 11 9:2 Laboratory evaluation 11 9:3 On-site evaluation12 9:4 Test results report 12 Appendix A (informative) Wet natural gas flow meter test example 13 A:1 Wet natural gas flow meter to be measured 13 A:2 Laboratory testing of wet natural gas flow meters 13 A:3 Wet natural gas flow meter field testing 18 Appendix B (informative) Wet natural gas flow meter laboratory test report example 21 Appendix C (informative) Wet natural gas flow meter field test report example 24 Reference 27

Foreword

This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document is Part 2 of GB/T 35065 "Wet Natural Gas Flow Measurement": GB/T 35065 has released the following parts: ---Part 1: General principles; ---Part 2: Flowmeter testing and evaluation methods: Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed and coordinated by the National Natural Gas Standardization Technical Committee (SAC/TC244): This document was drafted by: Natural Gas Research Institute of Southwest Oil and Gas Field Branch of China National Petroleum Corporation, PetroChina Co:, Ltd: Southwest Oil and Gas Field Branch, China Petroleum Engineering Construction Co:, Ltd: Southwest Branch, China National Petroleum Corporation Starim Oilfield Branch Experimental Testing Research Institute, CNOOC (China) Co:, Ltd: Beijing Research Center, CNOOC (China) Co:, Ltd: Hainan Branch, Tianjin University, Shenzhen Lianxingxing Technology Co:, Ltd:, Metzolon Instrument (Changzhou) Co:, Ltd: The main drafters of this document: Zhang Qiang, Liu Dingfa, He Min, Wang Qiang, Song Bin, Duan Jiqin, Huang Min, Wang Hui, Chen Mi, Zhou Fang, Zhou Xuejun, Xu Yingying, Xu Ying, Chen Yubo, Wang Xiaoqiang, Zhu Yong, Wu Hongguang, Li Wanjun, Zhou Daibing, Yu Peining, Huang He, Li Yi, Yang Di:

Introduction

Wet natural gas flow measurement is used for gas reservoir dynamic management, gas well production capacity optimization, hydrate control and flow during wet natural gas transportation operations: It provides calculation and related basic data for dynamic guarantee, production calculation and sales distribution, and is one of the key measurement methods in the upstream field of natural gas: system GB/T 35065 is established to ensure the orderly development of wet natural gas measurement work in the upstream field and to promote the goals and objectives of natural gas extraction in the upstream field: Realization of benefits: GB/T 35065 "Wet Natural Gas Flow Measurement" is the basic method to guide the flow measurement of liquid natural gas in the upstream field of natural gas: The legal standard involves equipment selection, general operation, performance testing, etc: for wet natural gas flow measurement in the upstream field of natural gas: It is planned to be composed of the following three parts composition: ---Part 1: General principles: The purpose is to provide the classification of wet natural gas flow patterns, flow measurement methods and flow meter selection, installation and General principles for commissioning, performance testing, operational maintenance and uncertainty assessment: ---Part 2: Flowmeter testing and evaluation methods: The purpose is to provide wet natural gas flow meter for measurement in laboratory and field General requirements for performance testing and evaluation, testing principles, testing conditions, testing process control, evaluation methods and evaluation results: ---Part 3: Method for measuring wet natural gas flow using a two-phase wet natural gas flow meter: The purpose is to provide a two-phase wet natural gas General requirements, installation, maintenance, etc: for measuring wet natural gas with flow meters: Wet natural gas flow measurement Part 2: Flowmeter testing and evaluation methods

1 Scope

This document describes the principles, test setup, and procedures for testing and evaluating the metering performance of wet natural gas flow meters in the laboratory and in the field: quality, test conditions, test process, data processing and evaluation methods: This document applies to the measurement performance testing and evaluation of flow meters for wet natural gas flow measurement defined in GB/T 35065:1:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document: GB/T 3836:1 Explosive atmosphere Part 1: General requirements for equipment GB/T 3836:2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d" GB/T 3836:4 Explosive atmospheres Part 4: Equipment protected by intrinsically safe type "i" GB/T 8423:4 Petroleum and natural gas industry terminology Part 4: Oil and gas measurement and analysis GB/T 13609 Guidelines for natural gas sampling GB/T 17611 Measurement terms and symbols for fluid flow in closed pipes GB/T 18603 Technical requirements for natural gas metering systems GB/T 35065:1 Wet natural gas flow measurement Part 1: General principles GB 50251 Gas pipeline engineering design specifications

3 Terms and definitions

The following terms and definitions as defined in GB/T 8423:4, GB/T 17611 and GB/T 35065:1 apply to this document: 3:1 wet natural gas flowmeter wetgasflowmeter Flow measuring equipment or device that can simultaneously measure the gas phase and liquid phase flow in wet natural gas: Note: It is generally composed of flow measurement equipment, content measurement equipment, supporting temperature measurement components, pressure measurement components, etc: 3:2 Gas volume fractiongasvolumefraction;GVF Under working conditions, the ratio of the gas phase volume flow to the total gas and liquid two-phase flow can be expressed as a ratio or a percentage, see formula (1): GVF= Qg Qq ×100% (1) In the formula: GVF --- gas phase volume fraction; Qg ---Gas phase volume flow rate, unit is cubic meter (m3); Ql ---Liquid phase volume flow rate, unit is cubic meter (m3): ......

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