The Complementary Technologies to Improve Polymer Flooding Efficiency for Class II Reservoirs of Daqing Oilfield

Abstract:

With the amount of polymer used in oil field increases year by year and the development results turn worse, people started to pay more attention to the technologies which can improve the polymer flooding recovery of class II reservoirs. Polymer flooding efficiency can be enhanced through methods such as detail geologic analysis, project design optimization and strengthen procedure management with applying mature supporting technologies. In this paper, the necessity of improving the polymer flooding effect of class II reservoir is introduced. The technologies to develop polymer flooding efficiency are proposed. The applying results of these technologies show that meticulous reservoir simulation and deepen recognize of structure and reserve and residual oil distribution are the base of improving polymer flooding efficiency. Optimizing polymer injection design to match the oil reserve is the key part of improving polymer flooding efficiency. Deepening technology research and building workflow of different measures and adjustment technologies at different production stages are efficient ways to improve polymer flooding efficiency. Insisting on the comprehensive adjust pattern of normal molecular weight with normal molecular concentration, individual design, scale injection, profile control in time, adjust with time and strengthen procedure management are the predominant guarantee of improving polymer flooding efficiency.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 1537-1541
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.1537
• Online since: February 2014
• Authors: Jiu Hong Feng*, Yang Liu
• Keywords: Adjustment Pattern, Class II Reservoir, Polymer Flooding

References

[1] Hu Bozhong, polymer flooding extraction engineering, Beijing: petroleum industry press, (1997).

[2] Wang Qimin. practice and understanding of polymer flooding extraction [J] Petroleum Geology and Oilfield Development in Daqing, (1999).