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结合延长青平川油田构造特征及区块储层物性和实际电测结果,采用容积法计算得到长2储层地质储量为517.14×104 t;同时,选择6种不同水驱曲线预测该储层的可采储量,分析对比并结合油田开采结果,可以预测长2储层最终采收率:经济极限含水率为95%时,最终采收率在8.16%左右,经济极限含水率为98%时,最终采收率在9.17%左右。
Based on the structural characteristics of Qingpingchuan oilfield and the physical properties of the reservoir and the actual electrical measurements, the volumetric method was used to calculate the geological reserves of Chang 2 reservoir to be 517.14 × 104 t. At the same time, 6 different water flooding curves were selected to predict the reservoir Recoverable reserves, analysis and comparison with the results of oilfield exploitation, we can predict the ultimate recovery of Chang 2 reservoir: when the economic limit moisture content is 95%, the final recovery rate is about 8.16% and the economic limit moisture content is 98% The ultimate recovery rate is about 9.17%.