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经济采收率是经济可采储量与探明地质储量之比 ,反映了地质储量中有利润价值的储量部分 ,它随着经济参数的变化而变化。文章在总结新场气田蓬一气藏地质模型和动态特征的基础上 ,利用翁氏模型预测法、对数正态模型法对气藏进行可采储量计算和产量预测 ,在对比两种数学模型预测结果后 ,选择对数正态模型预测的产量值 ,利用现行的经济参数 ,采用净现值法对气藏的经济采收率进行计算 ,为储量的资产化和气藏经营提供了可靠依据。
Economic recovery rate is the ratio of economically recoverable reserves to proven geological reserves, reflecting the portion of reserves that have a profit value in geological reserves, which varies with economic parameters. Based on the geological model and dynamic characteristics of Peng-1 gas reservoir in Xinchang gas field, the recoverable reserves calculation and production forecasting of gas reservoirs are carried out by Weng’s model prediction method and log-normal model method. By comparing the prediction of two mathematical models After the result, the output value predicted by the logarithm normal model is selected, and the economic recovery rate of the gas reservoir is calculated by using the present economic parameters and the net present value method, which provides a reliable basis for asset reserves and gas reservoir operation.