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中文摘要：
为研究大庆低渗透油田扶余油层超前注水过程中渗透率级差对采收率的影响和超前注水开发效果不佳的原因，通过人造长岩心超前注水驱油室内模拟实验，确定了合理地层压力水平和渗透率级别对采收率的影响程度。结果表明：大庆油田扶余油层超前注水过程中，合理地层压力水平应当保持在原始地层压力的120％左右。在合理地层压力保持水平下，超前注水较同步注水初期产油量高，采油速度高，无水采油期短，且对含水率上升具有一定抑制作用；同时，超前注水实施过程中，储层渗透率越低，超前注水对采收率提升的效果越好。
英文摘要：
To study on the permeability differential influence of advance water . fields of Fuyu reservoir and the bad development effects, sure the reasonable formation pressure level and the level of permeability which influence the recovery by advance injection experiments with artificial core is maken. The experimental results show that the effect of advance water injection is best when reasonable formation pressure should be kept at 120% of the original formation pressure. Keep at the reasonable pressure level, the early stage have higher production ; the water breakthrough, earlier than synchronous water injection has certain inhibitory effect of water cut rise. The lower the permeability, the effect of water injection in advance the better. Advance water injection has a good development effect on the low permeability reservoir in daqing oil field.
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Experimental Study on the Molecular Dimensionand Configuration of Polymer and its Flow Characteristi
Investigation on Mechanisms of Polymer Enhanced Oil Recovery by Nuclear Magnetic Resonance and Micro
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