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用于评价蒸汽辅助重力泄油项目性能的新型经济指标称为简化热效率参数。作为经济指标,该参数的有效性已经从定性和定量两方面得到证实。简化热效率参数是以瞬时蒸汽油比等于4时所对应时间的累积蒸汽油比、日产油量和采收率为基础的。在该项研究中,简化热效率参数动态模型是蒸汽油比经济极限和稠油价格不断变化条件下的经济指标。利用原始简化热效率参数值,引入两个动态系数,即稠油价格和蒸汽油比经济极限,可得出简化热效率参数动态模型。结果表明,在简化热效率参数动态模型和净现值之间呈良好的线性关系,相关系数大于0.93。因此,简化热效率参数模型是动态条件下的重要经济指标。
New economic indicators for evaluating the performance of steam-assisted gravity drainage projects are called simplified thermal efficiency parameters. As an economic indicator, the validity of this parameter has been confirmed qualitatively and quantitatively. The simplified thermal efficiency parameter is based on the cumulative steam-oil ratio, daily oil production, and oil recovery for the time corresponding to an instantaneous steam-oil ratio equal to four. In this study, the simplified dynamic model of thermal efficiency is an economic indicator that steam oil is more volatile than the economic limit and the price of heavy oil. Using the original simplified thermal efficiency parameter values, two dynamic coefficients are introduced, namely, the heavy oil price and the steam-oil ratio economic limit, a simplified dynamic model of thermal efficiency parameters can be obtained. The results show that there is a good linear relationship between the simplified thermal efficiency model and the net present value, the correlation coefficient is greater than 0.93. Therefore, simplifying the thermal efficiency parameter model is an important economic indicator under dynamic conditions.