针对春光油田稠油油藏水窜特点,开展氮气和水混合驱替试验研究,得到气水混合驱相渗曲线.通过相渗曲线分析了不同气水比状态下相渗变化情况,明确了氮气抑水作用机理.%Aiming at the characteristics of water-coning process in Chunguang Oilfield,a displacing experiment was carried out to obtain the gas-water relative permeability curve. Based on this relative permeability curve,the changes of relative permeability under different water-gas ratio were analyzed,thus the mechanisms of nitrogen assisted anti-water-coning process is discussed.
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