水驱特征曲线和产量递减规律在克拉玛依油田八区的应用

水驱特征曲线和产量递减规律是油藏工程动态预测的两种重要方法。前人在研究这两种规律时，常常将二者作为独立的方法来研究。但实际应用中，两种方法都有其自身的局限性：水驱特征规律描述累计产油量和累计产水量与水油比之间的关系，但缺少时间的概念；产量递减规律描述年产油量和累计产油量随时间的变化，但缺少了含水率指标。通过将两种方法综合应用，得到了不同时间油田综合含水率和累计产水量、不同含水率下的年产油量、不同年产油量下的累计产水量等动态关系。并以此来预测克拉玛依油田八区的动态指标，得到了较好的效果。

Application of Water Drive Type Curves and Production Decline Law in District No.8 of Karamay Oilfield

The water drive type curves and production decline law are the two important methods for dynamic prediction of reservoir engineering.Previous studies of these laws often take them as an independent approach，but they both have their own limitations in practical application:the water drive law describes the relationship among cumulative oil production，cumulative water production and water oil ratio， which lacks the concept of time；production decline law describes the change of annual oil production and cumulative oil production with time，which lacks the concept of water cut. Through the combination of the two methods，we can get water cut and cumulative water production in different time，oil production in different water cut，cumulative water production in different oil production, etc. Also, the methods above are used to predict the dynamic indices in Wuerhe oilfield and get good result