给出了注、采平衡时底水块状油藏单井极限产量的计算公式，借助该式可预估最大无水产油量。
Formula of limiting producing rate is given for balanced state of injection and production that can be used to estimate maximum output.
储量、区块及单井累积产油量、含水等参数计算的相对误差均小于2.0%，拟合精度高。
The computed parameters such as reserves, cumulative oil production of single well and area, water cut have small relative error of less than 2%, the matching accuracy degree is high.
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