天然气输差系统诊断方法  

Diagnosis Method of Natural Gas Transmission Difference

作　　者：张利华[1] Zhang Lihua(Chongqing Gas Mine,PetroChina Southwest Oil and Gas Field Company,Chongqing 400021,China)

机构地区：[1]中国石油西南油气田分公司重庆气矿,重庆400021

出　　处：《石油工业技术监督》2022年第8期35-41,共7页Technology Supervision in Petroleum Industry

摘　　要：天然气输差异常原因复杂多变,诊断过程繁琐无序,目前尚无可借鉴的系统诊断方法。为此,根据多年输差现场管理经验,借鉴标准化管理思路,通过对生产现场出现的各种输差问题的原因开展全面分析研究,确定操作性较强的天然气输差系统诊断方法,在现场应用中取得良好效果。研究表明:①该诊断方法是根据诊断的难易程度、出现频率和消耗成本的多少而制定,可降低人力、检测设备及车辆等诊断成本;②该诊断方法按照数据(含流程)、计量系统(含范围、参数、仪表)、环境、处理等4个方面来进行确认,可有效提高天然气输差异常诊断的效率和准确性;③该诊断方法能帮助计量人员在短时间内提升处理天然气输差异常问题的能力;④该诊断方法是计量技术与经验的储备保存,可变成企业的宝贵知识财富。该研究成果可以为天然气产销企业输差管理工作提供借鉴和参考,为天然气计量技术标准化提供技术支撑。The causes of abnormal natural gas transmission difference are complex and changeable,and the diagnosis process is cumbersome and disordered.At present,there is no systematic diagnosis method that can be used for reference.For this reason,according to the author's field management experience in gas transmission difference,using the standardized management ideas for reference,through a comprehensive analysis and research on the causes of various gas transmission differences in the production site,the systematic gas transmission difference diagnosis method with strong operability is proposed,and good results are achieved in the field application.The diagnostic method has the following characteristics:①The diagnosis method is formulated according to the difficulty,frequency and cost of diagnosis,which can reduce the diagnosis cost of manpower,detection equipment and vehicles;②The diagnosis method is confirmed step by step according to data(including process),metering system(including range,parameters and instruments),environment and treatment,which can effectively improve the diagnosis efficiency and accuracy of abnormal natural gas transmission difference;③The diagnosis method can help the metering personnel improve their ability to deal with the abnormal problem of natural gas transmission difference in a short time;④This diagnostic method is the reserve of measurement technology and experience,and can become a valuable knowledge wealth of enterprises.The research results can provide reference for the transmission difference management of natural gas production and marketing enterprises and provide technical support for the standardization of natural gas measurement technology.

关 键 词：天然气输差 诊断方法 天然气计量标准化 

分 类 号：TE832[石油与天然气工程—油气储运工程]