The Technology Limits for Stratified Injection of Polymer Flooding

Abstract:

At present the development of Daqing Oilfield has entered the water pick-up period, and the polymer separate injection technology for the injection well is urgent needed. However, the difficulty of selecting well and lever for the separate injection of the injection well is relatively large due to the complexity of the Class II reservoir of geological conditions. So for The limits of technology of the geological features, the limits of technology injection of stratified polymer injection for the Class II reservoir provides a scientific basis for the development of oil fields.In this paper, taking Daqing Oilfield Sabei Development Zone as example, establish the mathematical model of polymer flooding. Determine the well and layer selection principles of layered polymer injection wells in the ClassIIreservoir timing. According to the current development situation, give the decrease in water content and the improvement value in recovery under a given measure.Through this paper, we have got production effect of layered polymer injection in the Class II reservoir of Sabei area and given quantified layered polymer injection technology limits.

• Periodical: Advanced Materials Research (Volume 1094)
• Pages: 433-436
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1094.433
• Online since: March 2015
• Authors: Qi Sun*, Jing Yang, Li Yan Sun, Xiu Long Dong
• Keywords: Class Ⅱ Reservoir, Limits of Technology, Polymer Flooding, Stratified Injection

References

[1] Wang Demin, Zhang Jingchun, Meng Fanru, etc al. Commercial Test of Polymer Flooding in Daqing Oilfield, SPE 29902.

[2] Eric Delamaide, Philippe Corlay. Polymer Flooding Increases Production in Gian Oilfield [J]. Word Oil, Dec. 1994. 161～166.