Editorial office of ACTA PETROLEI SINICA ›› 1994, Vol. 15 ›› Issue (3): 91-95.DOI: 10.7623/syxb199403012

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CORRELATION AND CALCULATION OF GAS SOLUBILITY FOR HEAVY OIL IN KARAMAI OIL FIELD

Ke Jie1, Han Buxing1, Yan Haike1, Ke Yikan2   

  1. 1. Institute of Chemistry, Chinese Academy of Sciences;
    2. Institute of Chemical Technology, Beijing
  • Received:1993-01-27 Revised:1993-11-19 Online:1994-07-25 Published:2013-07-08

气体在克拉玛依九区稠油中的溶解度关联与计算

柯杰1, 韩布兴1, 阎海科1, 柯以侃2   

  1. 1. 中国科学院化学研究所;
    2. 北京化工学院

Abstract: Critical temperature(Tc),critical pressurc(PC),and eccentric factor(ω)of heavy oil inKaramai 9th district heavy oil have been calculated by means of the average structure param-eters of the oil and group contribution technique. The heavy oil was treated as a pseudo purecomponent in the calculation and the values obtained are 879 K,0.866 MPa and 1.10 respec-tively.The characterization parameters and the Peng-Robinson equation of state have beenused to calculate the solubility of N2,CO2,and CH4 in this heavy oil;The calculated resultsand the experimental data agree very well.The binary interaction coefficient involved in themixingrules of the equation state have also been discussed.

Key words: viscous crude, solubility, association, calculating method

摘要: 将克拉玛依九区稠油看成假一元组分,用此稠油的平均结构参数和基团贡献法相结合的方法计算了此碉油的临界温度(Tc)、临界压力(Pc)和偏心因子(ω),其数值分别为879K、0.866MPa和1.10.这种计算方法不需稠油的任何物理性质(如正常沸点等).对于组成复杂、分子量高的混合物特性参数(TcPc、ω)计算,此方法有明显优点.用计算的特性参数和Peng-Robinson方程关联、计算了克拉玛依九区稠油分别与N2、CH4、CO2组成体系的泡点压力和相互作用系数.泡点压力的计算值与实验值一致性很好.

关键词: 稠油, 溶解度, 关联, 计算方法