比较振荡管法和比重瓶法测定15~80℃原油视密度换算标准密度的研究  

Study on the Determination of Apparent Density ConversionStandard Density of Crude Oil at 15~80℃by Comparing Oscillating Tube and Pycnometer Method

作　　者：何云腾 张健[1] 李华[1] 李东晖[1] 吴应湘[1] HE Yun-teng;ZHANG Jian;LI Hua;LI Dong-hui;WU Ying-xiang(Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院力学研究所,北京100190

出　　处：《计量学报》2022年第5期629-635,共7页Acta Metrologica Sinica

基　　金：中国科学院战略性先导科技专项B类(XDB22030000)。

摘　　要：原油标准密度(20℃)是原油理化指标中重要的一项。通过使用安东帕(Anton Paar)DMA^(TM) 35 V4 Ex Petrol防爆便携密度计等设备,对多个油田的油井采出液原油试样在15~80℃时分别用比重瓶法、震荡管密度计法进行密度检测,绘制密度-温度曲线,推导和完善了经验公式,并给出了一个以测试密度和温度为参数的计算公式。将振荡管密度测试法与石油计量表联合求解原油标准密度,相对误差控制在±0.5%以内,使在现场快速得到原油标准密度参数成为可能。Crude oil standard density(20℃)is an important item in the physical and chemical indicators of crude oil.By using Anton Paar(Anton Paar)DMA^(TM) 35 V4 Ex Petrol explosion-proof portable density meter and other equipment,the density of crude oil samples from oil wells in multiple oilfields were detected by pyknometer method and vibrating-tube densitometer method respectively at 15~80℃,the density temperature curve was drawn,the empirical formula was deduced and improved,and a calculation formula with test density and temperature as parameters was given.The oscillating tube density test method and the petroleum meter were combined to calculate the crude oil standard density,and the relative error was controlled within±0.5%.It is possible to quickly obtain crude oil standard density parameters on-site.

关 键 词：计量学 原油标准密度 振荡管密度计 防爆便携 现场检测 计算方法 

分 类 号：TB933[一般工业技术—计量学]