In order to optimize construction parameters of water plugging in Iluanxi oilfield and improve the water plugging effect, we studied the influences of permeability, oil saturation, water shutoff agent concentration and injection rate on the water plugging performance through orthogonal experimental method in this paper. The research showed that, permeability, the concentration of water shutoff agent and injection rate have the most effect on water shutoff performance. For an artificial core of 2000 x 10~(-3)μm~2 gas permeability, the optimum dosage of plugging agent is 0.2 PV and the injection concentration is 1%.
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