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油藏的采收率是由黏度、毛管力、重力、注气速度、产油量、油气密度差、油气相对渗透率、油的黏度和其他控制参数决定的。对这些参数的风险分析能够确定它们在重力泄油提高采收率(EOR)过程中的相对优势。对不同控制参数相互作用的分析是通过控制驱替进程的比例组合来进行的。研究了这些定标组间的函数关系,以及它们对混相气驱重力泄油EOR的影响,评估各比例组综合作用对油藏采收率的影响。通过油藏数值模拟分析展现各个无量纲比例组的有效组合对重力泄油EOR的作用。
Oil recovery is determined by viscosity, capillary force, gravity, gas injection velocity, oil production, oil and gas density difference, oil and gas relative permeability, oil viscosity and other control parameters. Risk analysis of these parameters can determine their relative advantage in Gravity Drainage to Enhanced Oil Recovery (EOR). The analysis of the interaction of different control parameters is performed by controlling the ratio of flooding processes. The functional relationships between these calibrated groups were studied, and their effects on the EOR of a gravity-driven gas lift and the EOR were evaluated. The effect of the combined effect of each ratio group on the oil recovery was evaluated. Numerical simulation analysis of the reservoir shows the effect of the effective combination of each dimensionless scale group on gravity drain EOR.