Method for measurement of crude oil and bitumen dead oil viscosity and density
    3.
    发明授权
    Method for measurement of crude oil and bitumen dead oil viscosity and density 有权
    测定原油和沥青死油粘度和密度的方法

    公开(公告)号:US08336370B2

    公开(公告)日:2012-12-25

    申请号:US12673768

    申请日:2008-08-05

    IPC分类号: G01N11/00 G01N33/26

    摘要: Techniques for determining viscosity of oil in a sample include extracting the oil from the sample using a volatile polar first solvent; using a portion of the extracted oil to determine a concentration factor of oil in the sample; determining a dry weight of the extracted oil using the concentration factor; adding a second solvent to a remaining portion of the extract, where the second solvent is less volatile than the first solvent; removing the first solvent from the remaining portion of the extract; taking a series of sub-samples from the remaining portion of the extract and sequentially removing different amounts of the second solvent from each sub-sample; measuring solvent concentrations and viscosity values of the solvent-oil mixtures of each sub-sample; and based on the measured solvent concentrations and viscosity values of each sub-sample, determining the second-solvent-free viscosity of the oil in the sample.

    摘要翻译: 用于测定样品中油的粘度的技术包括使用挥发性极性第一溶剂从样品中提取油; 使用一部分提取的油来确定样品中油的浓度系数; 使用浓度因子确定提取的油的干重; 向所述提取物的剩余部分中加入第二溶剂,其中所述第二溶剂的挥发性低于所述第一溶剂; 从提取物的剩余部分中除去第一溶剂; 从提取物的剩余部分中取出一系列亚样品,并从每个子样品中依次除去不同量的第二溶剂; 测量每个子样品的溶剂 - 油混合物的溶剂浓度和粘度值; 并且基于每个子样品的测量溶剂浓度和粘度值,确定样品中油的第二无溶剂粘度。