Proper Use of Capillary Number in Chemical Flooding
Joint Authors
Li, Yiqiang
Guo, Hu
Wang, Fuyong
Dou, Ma
Hanqing, Wang
Yuanyuan, Gu
Yu, Zhaoyan
Yansheng, Wang
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Capillary number theory is very important for chemical flooding enhanced oil recovery.
The difference between microscopic capillary number and the microscopic one is easy to confuse.
After decades of development, great progress has been made in capillary number theory and it has important but sometimes incorrect application in EOR.
The capillary number theory was based on capillary tube bundles and Darcy’s law hypothesis, and this should always be kept in mind when used in chemical flooding EOR.
The flow in low permeability porous media often shows obvious non-Darcy effects, which is beyond Darcy’s law.
Experiments data from ASP flooding and SP flooding showed that remaining oil saturation was not always decreasing as capillary number kept on increasing.
Relative permeability was proved function of capillary number; its rate dependence was affected by capillary end effects.
The mobility control should be given priority rather than lowering IFT.
The displacement efficiency was not increased as displacement velocity increased as expected in heavy oil chemical flooding.
Largest capillary number does not always make highest recovery in chemical flooding in heterogeneous reservoir.
Misuse of CDC in EOR included the ignorance of mobility ratio, Darcy linear flow hypothesis, difference between microscopic capillary number and the microscopic one, and heterogeneity caused flow regime alteration.
Displacement of continuous oil or remobilization of discontinuous oil was quite different.
American Psychological Association (APA)
Guo, Hu& Dou, Ma& Hanqing, Wang& Wang, Fuyong& Yuanyuan, Gu& Yu, Zhaoyan…[et al.]. 2017. Proper Use of Capillary Number in Chemical Flooding. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1171843
Modern Language Association (MLA)
Guo, Hu…[et al.]. Proper Use of Capillary Number in Chemical Flooding. Journal of Chemistry No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1171843
American Medical Association (AMA)
Guo, Hu& Dou, Ma& Hanqing, Wang& Wang, Fuyong& Yuanyuan, Gu& Yu, Zhaoyan…[et al.]. Proper Use of Capillary Number in Chemical Flooding. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1171843
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171843