【作者】 苏玉亮； 李东霞； 郝永卯； 修建龙；

【Author】 SU Yu-liang~1,LI Dong-xia~2,HAO Yong- mao~1,XIU Jian-long~1(1.Faculty of Petroleum Engineering,China University of Petroleum(East China),Dongying 257061,Shandong,China;2.Faculty of Physics Science and Technology,China University of Petroleum(East China),Dongying 257061,Shandong,China)

【机构】 中国石油大学(华东)石油工程学院； 中国石油大学(华东)物理科学与技术学院；

【摘要】 胶质-沥青质含量高的黏弹性稠油存在松弛特性,它对黏弹性稠油在多孔介质中的渗流及驱替过程有较大的影响。在建立水驱黏弹性稠油的一维两相驱替数学模型基础上,利用有限差分方法进行了求解。计算结果表明:松弛特性可以提高含水饱和度,降低驱替压力梯度,从而改善水驱黏弹性稠油的开发效果。在实际的稠油开采中,应充分考虑和利用稠油的松弛特性。更多还原

【Abstract】 The heavy oil with high colloid-asphaltene content has relaxation property,and the relaxation property has greater effects on the seepage of the heavy oil in porous media and displacement process.The 1D two-phase mathematical model for the water driving heavy oil is established,and it is solved by finite difference method.It is shown that,the existence of the relaxation property can increase water saturation and decrease displacement pressure gradient,which will improve the water-flooding development result of the heavy oil.So the relaxation property should fully be considered in the development process of the heavy oil.更多还原