引用本文:陈正华,鲁大勇,周理,李晓红,邢鹏飞,沈琳,等. 天然气品质移动检测系统的构建与应用[J]. 石油与天然气化工, 2020, 49(3): 101-105, 114.
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天然气品质移动检测系统的构建与应用
陈正华1,2,鲁大勇3,周理1,2,李晓红1,2,邢鹏飞4,沈琳1,2,王晓琴1,2
1.中国石油西南油气田公司天然气研究院 ;2.中国石油天然气集团公司天然气质量控制和能量计量重点实验室 ;3.中国石油西南油气田公司川西北气矿;4.中国石油西南油气田公司生产运行处
摘要:
在天然气品质检测过程中,检测主要依据GB 17820-2018《天然气》中规定的发热量、CO2含量、H2S含量、总硫含量4项指标及水露点开展。其中,H2S含量及水露点检测由分析人员现场完成,而发热量、CO2含量和总硫含量的检测需要分析人员现场取样、样品运输和实验室分析获得,完成单个样品分析的周期较长,经济成本较高。为此,开发了新型天然气品质移动检测系统,同时还设计了样品处理系统、防振系统、数据处理系统等,可实现5项指标的现场快速检测、数据处理、报告生成等功能。在A天然气净化厂、B输气站等的应用表明,该天然气品质移动检测系统可应用于远距离、复杂工况移动后GB 17820-2018中规定的4项指标及水露点的现场快速检测。
关键词:  天然气  移动检测系统  防振  快速检测  总硫  发热量  CO2  H2S  水露点  样品处理系统
DOI：10.3969/j.issn.1007-3426.2020.03.017
分类号:
基金项目:中国石油天然气股份有限公司科学研究与技术开发项目“天然气质量控制和能量计量实验新方法研究”(2016D-500620-09)；中国石油西南油气田公司科研计划科技现场应用试验项目“天然气品质移动检测系统用于天然气产品气气质检测现场试验”(20190308KS-02)
Development and application of mobile detection system for natural gas quality
Chen Zhenghua1,2, Lu Dayong3, Zhou Li1,2, Li Xiaohong1,2, Xing Pengfei4, Shen Lin1,2, Wang Xiaoqin1,2
1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;2. Key Laboratory of Natural Gas Quality Control and Energy Measurement, CNPC, Chengdu, Sichuan, China;3. Northwest Sichuan Gas District, PetroChina Southwest Oil & Gasfield Company, Jiangyou, Sichuan, China;4. Production Management,PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China
Abstract:
In the process of natural gas quality detection, the detection is mainly carried out according to the four indexes of calorific value, content of CO2, H2S and total sulfur, as well as water dew point specified in GB 17820-2018 Natural Gas. The detection of H2S and water dew point is completed by the analyst on site, while the detection of calorific value, content of CO2 and total sulfur needs to be obtained by on-site sampling, sample transportation and laboratory analysis. The completion of a single sample analysis cycle is long and the economic cost is higher. For this reason, a new type of mobile detection system for natural gas quality has been developed. At the same time, a sample processing system, an anti-vibration system and a data processing system have been designed, which can realize the on-site rapid detection, data processing and report generation of five indicators. The successful application in a natural gas purification plant(Plant A)and a gas transmission station (Station B) shows that the mobile detection system of natural gas quality can be applied to the on-site fast detection of four indicators and water dew point specified in GB 17820-2018 after the long-distance move and under the complex working condition.
Key words:  natural gas  mobile detection system  vibration control  rapid detection  total sulfur  calorific value  carbon dioxide  hydrogen sulfide  water dew point  sample processing system