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利用气藏压降法计算裂缝性不均质气藏的储量,一般认为是较精确的。其公式为: 式中R_o—原始储量(亿米~3);P_(fo)/Z_(fo)—原始地压系数;P_(fm)/Z_(fm)、p_(fn)/Z_(fn)—某两个压降点的地压系数;ΣQ_m、ΣQ_n—某两个压降点的全气藏累计采气量。近几年来,通过对威远气田储量的研究,发现气藏压降法是有一定适用范围的,它适
It is generally considered to be more accurate to calculate the reserves of fractured heterogeneous gas reservoirs by using the gas pressure drop method. The formula is: Where R_o- original reserves (100 million meters to 3); P fo / Z fo - the original ground pressure coefficient; P fm / Z fm, p fn / Z fn ) - the pressure coefficient at one of the two pressure drop points; ΣQ_m, ΣQ_n - the cumulative gas production of the total gas reservoir at one of two pressure drop points. In recent years, through the study on the reserves of Weiyuan Gas Field, it has been found that there is a certain range of application of the pressure drop method in reservoirs, which is suitable