The Effects of the Shear-thinning Property of Injection Fluid on the Performance of Polymer Flood
- Authors
- Lee, Kun Sang
- Issue Date
- Aug-2013
- Publisher
- TAYLOR & FRANCIS INC
- Keywords
- injectivity; polymer flood; shear-thinning fluid; simulation; viscosity
- Citation
- ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, v.35, no.16, pp.1550 - 1559
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
- Volume
- 35
- Number
- 16
- Start Page
- 1550
- End Page
- 1559
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162277
- DOI
- 10.1080/15567036.2011.586976
- ISSN
- 1556-7036
- Abstract
- Assessment of the potential of a polymer flood process for mobility control requires an accurate model on the viscosities of displacement fluids. Because most polymers used in enhanced oil recovery exhibit shear-thinning behavior, effective viscosity of polymer solution is a highly nonlinear function of shear rate. A reservoir simulator, including the model for the shear-rate dependence of viscosity, was used to investigate the shear-thinning effects of polymer solution on the performance of the reservoir in a five-spot pattern operating under polymer flood followed by waterflood. The model can be used as a quantitative tool to evaluate the comparative studies of different polymer flooding scenarios with respect to shear-rate dependence of fluids' viscosities. Results of cumulative oil recovery, injectivity, and distributions of polymer concentration and aqueous phase viscosity are presented for parameters of shear-rate dependencies, permeability, and injection rate. The results of this work have proven the importance of taking non-Newtonian behavior of polymer solution into account for the successful evaluation of polymer flood processes. Simulations carried in a 3D model suggest that the shear-thinning property improves injectivity considerably because the shear rate encountered near the injection well alters the viscosity of displacing fluid. However, it makes almost negligible differences in oil recovery because a significant increase in viscosity was developed at the fluid front in the reservoir. A thorough understanding of polymer rheology in the reservoir and accurate numerical modeling are of fundamental importance for the exact estimation on the performance of polymer flood.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 서울 공과대학 > 서울 자원환경공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162277)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.