深部液流转向模糊综合评判选井与矿场应用

Selecting Wells by Ambiguity Synthesized Judge for Fluid Diversion In-depth and Application

随着油田开发进入中高含水期,长期注水形成的无效循环场将严重影响注水驱油效率。为了更好地挖潜剩余油,提高原油采收率,应用SR-3柔性转向剂从根本上改变水流优势场,提高波及体积。而选井、选层是否合理对液流转向后的效果是至关重要的。运用模糊综合评判技术,将影响调剖效果的因素归类,根据其影响因子大小冠以不同的权重,建立数学模型优选施工井。通过油田矿场应用,效果是可行的。

As the development of the oilfield went into middle-high water cut stage,the invalid cycle would affect sweep efficiency seriously in injected water.In order to effectively produce remaining oil and enhance oil recovery,SR-3 was used to change the water flow-line field,enhance the swept volume.But it was important to select the wells and layers.The affect factors were classified to use ambiguity synthesized judge technology with different weights by affecting factor size,to establish the mathematical model to optimize wells.Field application shows that the method is feasible.