Evaluation method and application of profile control effect in Suizhong 36-1 oilfield

There are some problems in the traditional evaluation method of profile control effect, such as onesided evaluation index, uncertainty of evaluation result and inability to quantify. Therefore, from profile control well, production well and reservoir, each evaluation index is subdivided. Based on the comprehensive analysis of dynamic development, water drive curve and dynamic monitoring, a secondary evaluation system is established. According to the fitting results of water cut rising characteristics, the parabola function is used to establish a comprehensive evaluation method, and a comprehensive evaluation is carried out on the B25 well group in Suizhong 36-1 oil field. The well group profile control effect is good, which proves its effectiveness.