Application of Well Allocation Factor for Injection Optimization of Waterflooding

수공법 주입량 최적설계를 위한 Well Allocation Factor 적용 연구

  • Received : 2015.10.28
  • Accepted : 2015.12.10
  • Published : 2015.12.31


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.


Oil production;waterflooding;well allocation factor(WAF);injection allocation optimization


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Supported by : 한국에너지기술평가원(KETEP)