摘要
用极性四组分分离方法将胜利油田罗家超稠油分离成饱和分、芳香分、胶质、沥青质,四组分在原油中的质量分数分别为20.17%,39.28%,20.67%,19.88%,并采用红外光谱技术和元素分析考察了极性四组分。将各组分配制成质量分数为2%的甲苯模拟油,考察了模拟油在碱水、地层水体系中的乳化性能及界面张力。实验结果表明,芳香分和胶质是罗家稠油区超稠油的主要界面活性组分;筛选的降粘剂使极性四组分模型油的透光率和界面张力大大地降低,适于本稠油的乳化降粘。
Four fractions of saturate, aromatic, resin and asphaltine are separated by polar method from Luojia ultra - heavy oil in Shenglioil field with the mass fraction of 20.17%, 39.28%, 20.67% and 19.88% respectively. The four polar fractions are characterized by IR spectroscopy and the element analysis. The model- oils are made with toluene of 2% （mass fraction） by adding each fraction. The emulsification ability and interracial tensions of the model - oils in the base and subsurface water .solution were investigated. The results show that aromatic and resin fractions are the main interracial active component in Luojia ultra - heavy oil. The transmittance and interfacial tensions of the model - oils with four polar fractions are reduced greatly by the viscosity reducer and the viscosity reducer is suitable to viscosity reducing of this ultra heavy oil by emulsifying.
出处
《石油化工高等学校学报》
EI
CAS
2006年第1期48-52,共5页
Journal of Petrochemical Universities
关键词
超稠油
活性组分
碱水
界面张力
红外光谱
元素分析
Ultra heavy oil
Active component
Bese
Interracial tension
Infrared absorption spectra
Element analysis
