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The Application of Horizontal and Vertical Well Patterns During Polymer Flood Processes in Anisotropic Reservoirs

Title
The Application of Horizontal and Vertical Well Patterns During Polymer Flood Processes in Anisotropic Reservoirs
Author
이근상
Keywords
anisotropy; horizontal well; injectivity; polymer flood; well pattern
Issue Date
2012-07
Publisher
Taylor & Francis
Citation
ENERGY SOURCES PART A RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2012, 34(7), P.1646-1655
Abstract
Using horizontal wells in a polymer flood process, higher sweep efficiency is expected compared with the use of conventional patterns by vertical wells. However, the use of horizontal wells is very sensitive to the well pattern designed to operate the process. This article presents an analysis of how the overall performance of a polymer flood process is influenced by the well pattern using a horizontal injector and producer in different configurations. A three-dimensional numerical model for fluid flow and mass transport is used to analyze the performance of the reservoir. The potential for a horizontal well application was assessed through different scenarios in combinations of injection and production wells and reservoir anisotropy. Results from the study have demonstrated that a significant amount of additional oil can be recovered and injectivity was remarkably improved by utilizing a combination of horizontal wells. The improvement of injectivity through a horizontal injection well was higher when it was combined with a horizontal producer parallel to the injector. The overall performances in anisotropic reservoirs strongly depend on the type of wells considered and the orientation of the horizontal wells with respect to the permeability directions. A combination of horizontal wells placed parallel to the low permeability direction yields the best performance.
URI
https://www.tandfonline.com/doi/abs/10.1080/15567036.2010.489105http://hdl.handle.net/20.500.11754/66356
ISSN
1556-7036
DOI
10.1080/15567036.2010.489105
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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