火驱物质动态平衡分析及应用

Analysis and Application of the Material Dynamic Equilibrium in the In-situ Combustion

火驱过程中空气的注入起到氧化燃烧和增压驱替的作用,运用注采物质平衡的原理,对火驱发开中油田合理注气量、合理产气、产液量和合理注采比进行系统研究,对注入气在火驱过程中的燃烧、增压作用进行了分解,进而建立了整个火驱区块规模的注采比表达式。在对某实验区典型地质开发参数分析的基础上,确定了该油田的合理的注采平衡参数,为该试验区块开发提供了参考依据。

The injection of air has an effect on oxidation and combustion, increasing the pressure for better re- placement. System researches have been done on reasonable air injection, produced gas, produced liquid, injec- tion-production ratio and a better understanding of how the injection air influence the combustion and the effect of pressure boost under the utilization of the injection-production material equilibrium. Therefore the injection-produc- tion ratio representation have been established for the whole block scale. Reasonable injection-production equilibri- um parameters have been confirmed and dynamic states of the process of the block have also been analysed on the basis of the analysis on typical geological development parameters for some experimental plot, thus to provide refer- ences for future development on this experimental plot.