Abstract: Imbibition is an important mechanism of water-oil displacement in fractured reservoir, so the production from fractured reservoir reflects the characteristics of imbibition. When the production comes into decline stage, the decline regulation is generally complex. Big errors exist in history match and future prediction with conventional methods. Based on the imbibition curve of Aranofsky, a new model for production forecast in fractured reservoir is proposed using the imbibition equation given by Kewen Li, et al. Applied to H2 oil layer in Huoshaoshan oilfield, the result shows that this method is applicable for production forecast of fractured reservoir.

Key words: imbibition, fractured reservoir, production, output, forecast, prediction