摘要
GB/T 19779—2005 《石油和液体石油产品油量计算静态计量》规定的基于体积的净表观质量计算步骤中,计算净标准体积时使用由体积分数计算出的沉淀物和水的修正值,对应的表观质量换算系数应使用纯油品密度计算获得,但是纯油品密度无法直接测量获得,使用中容易与含水油品的密度混淆,如果使用错误,则导致油量计算结果产生偏差,油品密度越小、含水量越大,该计算偏差也越大。建议标准修订时理顺油品含水和密度的计算关系,或删除基于体积的油量计算步骤。
In The net apparent mass calculation procedure based on volume in GB/T 19779—2005Static Metering of Oil Quantity for Petroleum and Liquid Petroleum Products,the correction value of sediment and water calculated by volume fraction is used to calculate the net standard volume,and the corresponding apparent mass conversion coefficient should be calculated by the pure oil density. However,the density of pure oil products cannot be obtained by direct measurement. It is easy to be confused with the density of water bearing oil in use. With wrong usage,the result of oil quantity will be deviated,and the smaller the oil density and the greater the water content,the greater the deviation of the calculation result. It is suggested that the relationship between water cut and density of oil products should be straightened out,or the calculation procedure of oil quantity based on volume should be deleted.
作者
冯超
杨亚茹
李淑英
向涛
张奇文
FENG Chao;YANG Yaru;LI Shuying;XIANG Tao;ZHANG Qiwen
出处
《油气田地面工程》
2018年第12期61-63,共3页
Oil-Gas Field Surface Engineering
关键词
油量计算
净表观质量
计算方法
油品密度
计算偏差
oil quantity calculation
net apparent mass
calculation method
oil density
calculation deviation
