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高四～六区东部于2005年10月开始三次采油,三次采油投入开发后,高四～六区东部的水驱、聚驱和水驱、三元驱在平面上交错分布。为减少三采对水驱的干扰,对水驱60口油水井的青Ⅰ1-青Ⅰ33油层进行封堵,封堵注水井注入能力下降,封堵采油井的产量下降,封堵井的注入、产出剖面发生了很大改变。因此,有必要对封堵油水井进行深入分析,为进一步改善封堵井的动用状况提供依据。
The highs 4 ~ 6 of the eastern region started the tertiary recovery in October 2005. After the tertiary recovery was put into operation, waterflooding, poly flooding and waterflooding in the eastern part of the highs 4 ~ 6 were staggered in the plane. In order to reduce the interference of water diversion with three mining methods, the QingⅠ1-QingⅠ33 oil reservoir of 60 oil-water wells in waterflooding was blocked, the injecting capacity of plugging water injection well was decreased, the production of plugged oil wells was decreased, the injection of plugging wells was blocked, The output profile has changed a lot. Therefore, it is necessary to conduct an in-depth analysis on the plugged oil and water wells to provide a basis for further improving the utilization status of the plugged wells.