Y2油藏西北区为底水油藏,开采效果差.研究含水上升规律对于改善该油藏的开发效果有重要的作用.首先通过实际的含水率曲线与相渗计算的理论含水率曲线对比发现,实际的含水上升速度远大于相渗计算的理论含水上升速度.单井含水率曲线主要表现为凸型.根据产油量和含水率的变化,分三类对单井的含水上升规律进行了讨论,并分析了每类的原因.最后在单井含水上升分析的基础上,分析了油藏整体的含水率曲线出现台阶状的原因.该油藏底水锥进严重,剩余油主要是富集在注采井间,因此,可考虑水平井技术用于该油藏的深度挖潜.%The northwest block of Y2 reservoir is a bottom water reservoir, Its exploitation effect is very poor. The study on the water cut rising characteristic have an important role for improving the development of the reservoir effect. It fund that the actual water rising velocity is far outweigh the relative permeability calculation theory water cut up speed, through the contrast with the actual water cut curve and relative permeability calculation theoretic water cut curve. The single well water cut curve is mainly for convex. According to the change of yield and water cut, the single well water cut curve is divided into three types to discusse. And the reason of each type is analyzed. Finally , on the basis of the analysis of the single well water cut up, the reason of the water cut of the reservoir as a whole to be a step-like is analyzed. The reservoir bottom water coning is serious. The remaining oil is mainly concentrated between the injection-production patterns. Therefore, the horizontal well technology for tapping potentialities of the reservoir can be considered.
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