早期注水保持压力采油的大庆油田,在含水率高于60％以后稳产逐渐困难。该油田杏一区东部采用全面转抽的做法,大幅度降低流压,适当降低注水压力和地层压力,使产量明显回升,延长了稳产期,也为高质量、低成本地钻加密调整井创造了条件。同时看到,全面转抽后油层动用状况并未明显改善,因此,转抽代替不了层系井网的调整。 Early Daqing oilfield water pressure to maintain pressure, water content higher than 60% stable production gradually difficult. In the eastern part of Xingyi District, the method of full-turn pumping is adopted to reduce flow pressure drastically and to reduce injection pressure and formation pressure to make production obviously pick up, prolong stable production period and also to create high-quality and low-cost drilling and adjustment wells Conditions. At the same time, it has been observed that the utilization status of the reservoir has not been significantly improved after the completion of a full pumping operation. Therefore, the pumping can not replace the adjustment of the well pattern.