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http://dx.doi.org/10.5855/ENERGY.2015.24.4.001

Application of Well Allocation Factor for Injection Optimization of Waterflooding  

Yoon, Su-Jin (Department of Energy and Resources Engineering, Korea Maritime and Ocean University)
Kang, Pan-Sang (Department of Energy and Resources Engineering, Korea Maritime and Ocean University)
Lim, Jong-Se (Department of Energy and Resources Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Energy Engineering / v.24, no.4, 2015 , pp. 1-10 More about this Journal
Abstract
For successful operation of waterflooding which is one of secondary recovery methods, suitable water injection allocation is important to increase oil recovery. Well allocation factor(WAF) which is one way to quantify the injector and producer connectivity, is utilized to allocate water injection of waterflooding. Static WAF cannot represent the field condition and can induce incorrect value. To compensate for limitation of static WAF, modified WAF which includes several parameters that affect patterns including well radius, distance between wells, and injection rates is proposed. In this study, static and modified WAFs were applied to injection optimization of waterflooding and results by each WAF were compared. In case of modified WAFs, produced water were less and produced oil were more than case of static WAF especially in big change of distance between producer and injector. Therefore, modified WAFs can allocate water injection more efficiently than static WAF.
Keywords
Oil production; waterflooding; well allocation factor(WAF); injection allocation optimization;
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