油田示踪剂定量分析用四氟乙烷(R134a)标准物质的研制及应用  

Preparation of Gas Reference Material of Tetrafluoroethane(R134a)for Quantitative Analysis Tracer in Oil and Gas Field

作　　者：袁琴 郑力文[2] 敖科 王艺衡 杨海钒 袁礼[2] YUAN Qin;ZHENG Liwen;AO Ke;WANG Yiheng;YANG Haifan;YUAN Li(Gepetto Oil Technology Group Co.,Ltd.,Chengdu 610011,China;National Institute of Measurement and Testing Technology,Chengdu 610021,China)

机构地区：[1]捷贝通石油技术集团股份有限公司,四川成都610011 [2]中国测试技术研究院,四川成都610021

出　　处：《化工技术与开发》2024年第11期21-25,共5页Technology & Development of Chemical Industry

摘　　要：四氟乙烷(R134a)是一种常用的气体示踪剂,多应用于气体示踪检测技术对油气藏的监测中。本文以高纯四氟乙烷为原料,高纯氮气为稀释气,采用称量法制备了量值水平为0.100~10.0μmol·mol^(-1)的高准确度氮气中四氟乙烷气体标准物质,通过浓度随压力和时间的变化,考察了其均匀性和稳定性。实验结果表明,所研制的氮气中四氟乙烷气体标准物的质量值准确可靠,有较好的压力均匀性和稳定性。使用气相色谱-质谱联用仪,对西南油气田2个井组的观察井气体示踪剂样品进行检测分析,采用外标法准确定量了气体示踪剂的浓度并得到了示踪剂的产出曲线,从而确认了该地注采井的连通关系。结果表明,标准物质保证了油气田微量示踪剂浓度定量检测的准确性,可为之后的工艺开采及方案调整提供理论支持。The tetrafluoroethane(R134a)as a gas tracer was widely used for the tracking and detection of oil and gas reservoirs.Applied high purity tetrafluoroethane as raw material and high nitrogen gas as dilution gas,0.100~10.0μmol/mol high accuracy tetrafluoroethane gas reference material in nitrogen was prepared by gravimetric method.Relationships between time or pressure and homogeneity or stability were also checked.All the research results indicated good homogeneity and stability,also the measurement result was accurate and reliable.The GC-MS was used to analyze the gas tracer of two groups in xi′nan oil-gas field,the concentration was quantified accurately by the external standard method and the gas tracer output curves was obtained,as well as the heterogeneity of the reservoir and the connectivity between gas injection wells and production wells in the block was clarified.The results indicated that the accuracy of quantitative detection of tracer concentration in oil and gas fields was guaranteed by reference material.It could provide theoretical support for the optimization and adjustment of pilot test scheme.

关 键 词：四氟乙烷 气体标准物质 油田示踪剂 定量分析 

分 类 号：TE39[石油与天然气工程—油气田开发工程] O657.63[理学—分析化学]