As fractured carbonate reservoirs with high saturation pressure are strongly sensitive to stress

the conventional productivity prediction methods are not applicable.Beginning with the study on the variation of flow coefficient with pressure

this paper presents a new productivity prediction method for reservoirs with high stress sensitivity and high saturation pressure based on the theory of darcy flow and in combination with the production practices.Comparison with the mea-sured inflow performance relationship (IPR) curves from three wells shows that the calculated and measured values are in good agreement with an average error of only 4.1%.When bottom hole flowing pressure is lower than a given value output may decrease correspondingly

causing difficulty in productivity prediction with conventional method.The new method can be used to solve this problem

thus is of great significance for the development of the fractured reservoir with high saturation pressure.