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油气运移动力学中流体势可表征被驱流体的综合动力,其概念可将油气的运移、聚集和散失统一起来。渗流力学将油气运移过程视为宏观上均一的多相流动过程,可由达西定律表达力与运动速度之间的关系。在此基础上,深入探讨了传递对驱油过程的物理释义,从流动趋势、驱动能力及驱动速度等方面说明传递契合了油气运移动力学与渗流力学的相关理论。最后阐述了基于传递原理的多场协同驱油机理,具有清晰、简洁而又能恰当反映实际过程的特点,说明了传递用于描述驱油过程是合理和必要的。
The fluid potential in the hydrocarbon migration dynamics can characterize the comprehensive power of the driven fluid, and its concept can unify the migration, accumulation and dissipation of hydrocarbons. Percolation mechanics regards hydrocarbon migration as a macroscopically uniform multiphase flow process, which can be expressed by Darcy’s law and its relation to velocity. On this basis, the physical interpretation of the process of oil displacement is discussed in depth, and the related theories of hydrocarbon migration kinetics and seepage mechanics are presented based on the flow trend, driving ability and driving speed. Finally, the mechanism of multi-field collaborative oil displacement based on transmission principle is expounded. It is clear and concise that it can properly reflect the characteristics of the actual process. It shows that it is reasonable and necessary for transmission to describe the oil displacement process.