天然气流量次级标准装置计量性能核查技术

doi:10.11885/j.issn.1674-5086.2022.01.24.08

西南石油大学学报(自然科学版) ›› 2024, Vol. 46 ›› Issue (2): 145-154.DOI: 10.11885/j.issn.1674-5086.2022.01.24.08

天然气流量次级标准装置计量性能核查技术

彭利果^1,2,3,4, 何金蓬², 周刚⁵, 万元周^1,2,3,4

1. 国家石油天然气大流量计量站成都分站, 四川成都 610213;
2. 中国石油西南油气田公司天然气研究院, 四川成都 610213;
3. 国家市场监管重点实验室(天然气质量控制和能量计量), 四川成都 610213;
4. 中国石油天然气质量控制与能量计量重点实验室, 四川成都 610213;
5. 中国石油西南油气田公司工程技术研究院, 四川成都 610213

收稿日期:2022-01-24 发布日期:2024-05-11
通讯作者: 彭利果,E-mail:pengliguo@petrochina.com.cn
作者简介:彭利果,1983年生,男,汉族,四川成都人,高级工程师,硕士,主要从事天然气流量量值溯源与计量检定技术研究。E-mail:pengliguo@petrochina.com.cn;何金蓬,1994年生,男,汉族,重庆渝北人,工程师,硕士,主要从事天然气流量量值溯源与计量检定技术研究。E-mail:he_jinpeng@petrochina.com.cn;周刚,1979年生,男,汉族,四川成都人,工程师,主要从事井工程入井流体及材料质量控制。E-mail:zhougang@petrochina.com.cn;万元周,1980年生,男,汉族,四川成都人,高级工程师,主要从事天然气流量量值溯源与计量检定技术研究。E-mail:wanyz@petrochina.com.cn
基金资助:
中国石油西南油气田公司科研项目(20230308-01；20200308-02)

Verification Technology for Metrological Performance of Secondary Standard Devices for Natural Gas Flow

PENG Liguo^1,2,3,4, HE Jinpeng², ZHOU Gang⁵, WAN Yuanzhou^1,2,3,4

1. Natural Gas Chengdu Branch of China National Station of Petroleum Flow Measurement, Chengdu, Sichuan 610213, China;
2. Research Institute of Natural Gas Technology, Southwest Oil & Gasfield Company, PetroChina, Chengdu, Sichuan 610213, China;
3. Key Laboratory of Natural Gas Quality Control and Energy Measurement for State Market Regulation, Chengdu, Sichuan 610213, China;
4. Key Laboratory of Natural Gas Quality Control & Energy Measurement, Southwest Oil & Gasfield Company, PetroChina, Chengdu, Sichuan 610213, China;
5. Research Institute of Engineering Technology, Southwest Oil & Gasfield Company, PetroChina, Chengdu, Sichuan 610213, China

Received:2022-01-24 Published:2024-05-11

摘要/Abstract

摘要： 针对用于贸易交接流量计流量量值溯源的高精度流量标准装置计量性能实时核查技术不完善问题，开展了天然气流量次级标准装置计量影响因素、实时核查技术指标与方法研究，研究中采用了k-means聚类等大数据统计分析技术，创新提出天然气流量次级标准装置计量性能实时核查技术指标与核查方法。验证表明，采用组合涡轮工作标准表，组合实施一对一核查、多对一核查、多对多核查、总量核查，监控天然气发热量波动率、压力温度稳定系数、喷嘴间温差、喷嘴差压及涡轮工作标准表相对次级标准体积流量偏差及重复性共6项技术指标，能准确实时核查用于检定高准确度检流量计的次级标准装置的计量性能，实时监控流量计检定的过程质量、保证每台次流量计检定结果准确可靠。研究成果对于天然气流量标准装置质量控制具有一定的指导意义。

关键词: 流量, 标准装置, 计量性能, 核查指标, 核查方法

Abstract: In response to the issue of incomplete real-time verification technology for the measurement performance of the high-precision flow standard device used for tracing the flow value of custody transfer flow meter, a study is conducted on the influencing factors of natural gas flow secondary standard device measurement, real-time verification technical indicators and methods. Large data statistical analysis technology is used in the study, and innovative real-time verification technical indicators and verification methods for the measurement performance of natural gas flow secondary standard device are proposed. We use a combined turbine working standard, and implement a combination of one-on-one verification, many-to-one verification, many-to-many verification, and total amount verification to monitor six technical indicators, including natural gas heat generation fluctuation rate, pressure and temperature weight coefficient, temperature difference between nozzles, nozzle differential pressure, and secondary standard volume flow deviation and repeatability of the turbine working standard. And we make an accurate and real-time verification of the metrological performance of the secondary standard device used for calibrating high-precision flow meters, monitor the process quality of flow meter calibration, and ensure the accuracy and reliability of each flow meter calibration result. The research results have certain guiding significance for the quality control of natural gas flow standard devices.

Key words: flow, standard device, metering performance, verification indicators, verification method

中图分类号:

TE348

彭利果, 何金蓬, 周刚, 万元周. 天然气流量次级标准装置计量性能核查技术[J]. 西南石油大学学报(自然科学版), 2024, 46(2): 145-154.

PENG Liguo, HE Jinpeng, ZHOU Gang, WAN Yuanzhou. Verification Technology for Metrological Performance of Secondary Standard Devices for Natural Gas Flow[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(2): 145-154.

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天然气流量次级标准装置计量性能核查技术

Verification Technology for Metrological Performance of Secondary Standard Devices for Natural Gas Flow

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