裂缝性高饱和压力油藏产能计算新方法

doi:10.11743/ogg20130219

Abstract

Abstract:

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.

Key words: pressure decrease, inflow performance relationship (IPR) curve, productivity prediction, high saturation pressure reservoir, fractured reservoir

CLC Number:

TE19

Zhu Chan, Shen Kaiyuan, Tong Yubao, Jiang Wu, Qian Qiaoya, Li Wenmiao. A new productivity calculation method for fractured reservoirs with high saturation pressure[J]. Oil & Gas Geology, 2013, 34(2): 264-266.

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A new productivity calculation method for fractured reservoirs with high saturation pressure

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