CAJ | 학술논문

从3个方面对重稠油的煤油混合稀释密度测定法进行改进。采用随机称量的煤油和重稠油混合稀释替代其等体积混合稀释，以 U 形振动管密度法替代手工漂浮密度计法，推导出以质量计量混合的重稠油密度计算公式，并编成程序安装到计算机里，直接输入4个参数值，即可迅速地得到重稠油标准密度值；重稠油与煤油混合近似服从体积加和性规则，以质量比1∶1为中心点，在（1∶2）～（2∶1）的范围内重稠油与煤油稀释均匀，注入 U 形振荡管密度仪测定混合油的密度，可获得满意的重稠油密度结果；随机称量-煤油稀释-U 形振动管法也适合含泡沫重质原油的密度测定；随机称量-煤油稀释-U 形振动管法的3次密度测定的标准偏差在0．0001 g/cm3以下，与直接 U 形振荡管法的平行性相当，优于漂浮密度计法。
종3개방면대중주유적매유혼합희석밀도측정법진행개진。채용수궤칭량적매유화중주유혼합희석체대기등체적혼합희석，이 U 형진동관밀도법체대수공표부밀도계법，추도출이질량계량혼합적중주유밀도계산공식，병편성정서안장도계산궤리，직접수입4개삼수치，즉가신속지득도중주유표준밀도치；중주유여매유혼합근사복종체적가화성규칙，이질량비1∶1위중심점，재（1∶2）～（2∶1）적범위내중주유여매유희석균균，주입 U 형진탕관밀도의측정혼합유적밀도，가획득만의적중주유밀도결과；수궤칭량-매유희석-U 형진동관법야괄합함포말중질원유적밀도측정；수궤칭량-매유희석-U 형진동관법적3차밀도측정적표준편차재0．0001 g/cm3이하，여직접 U 형진탕관법적평행성상당，우우표부밀도계법。
The kerosene dilution method for determination of density of heavy viscous oil was im-proved in three aspects. First,random weighed kerosene and heavy viscous oil was mixed,instead of equal volume mixing method. Second,a digital analyzer consisting of a U-shaped oscillating sample tube was used to replace the manual hydrometer method. Finally,a computational formula for viscous oil density determination were programmed and installed into the computer,by which the viscous oil densi-ty can be automatically and quickly determined through directly entering four parameters. It is found that the mixture of kerosene and heavy oil closely obey the volume additivity rule and within (1 ∶2)-(2∶1)mass ratio scope of heavy oil and kerosene,the density of heavy oil can be obtained satisfactorily by the modified method. The standard deviation for three times density determination is less than 0.000 1 g/cm3 ,parallel to the result of direct oscillating U tube method,but superior to hydrometer method. The modified method is also suitable for heavy crude oil containing bubble.