Experimental Study on Percolation Backbone of Secondary Migration of Crude Oil
详细信息
- 责任者：Yan Jianzhao (Key Laboratory of Petroleum Resource Research ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Luo Xiaorong
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(1)
- 关键词：二次运移 ; secondary migration
- 页码：p.99-103
- 图表：4 illus., 34 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
The experimental studies of the continual secondary migration of crude oil have been carried out 2-dimentionally using the Hele-Shaw model.Buoyancy and capillary force changes after the formation of initial migration pathway are the main reason for percolation backbone.The size and fractal dimension of the backbone are smaller than those of the corresponding initial migration pathway.The backbone limits the losses of oil during secondary migration and accelerates the process,so it enhances the secondary oil migration efficiency.