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地面地震振动处理法是颇具远景的提高地层采收率的物理-化学方法之一,本文着重介绍了该方法的试验研究。试验给果分析表明,该方法可与其它常用的提高地层采收率方法同时使用,可大大提高处于开发后期的油田中水浸地层的原油采收率,对多层油田尤为有效,其最明显的效果范围是离振动源设置点2.5~3km的区域。该区域油井的含水率可降至18%~20%,原油增采量占该地区总采油量的38%~60%。振动处理的效果可持续7~12个月。
The ground seismic vibration processing method is one of the most promising physical-chemical methods to improve the recovery rate of formation. This paper focuses on the experimental study of this method. Experimental results show that this method can be used simultaneously with other commonly used methods to enhance the recovery ratio of formation, which can greatly enhance the recovery rate of crude oil in the flooded formation in the late stage of oilfield development, which is especially effective for multi-layer oil fields. The effect range is from the vibration source set point 2.5 ~ 3km area. The water cut of oil wells in this area can be reduced to 18% ~ 20%, and crude oil recovery and recovery accounts for 38% -60% of the total oil production in this area. The effect of vibration treatment can last 7 to 12 months.