高温高压CO_2驱油微观机理实验研究

Laboratory study of microscopic mechanism of CO_2 flooding at high temperature and pressure

运用自主开发研制的高温高压微观实验系统模拟了不同温度、不同压力下,CO2在储层孔隙体、喉道中的变化状态。利用微观实验可视化、真实化的特点,对CO2与原油相互作用的机理进行了研究。解释了CO2驱油效率高于其他驱油剂的主要原因。为油田矿场CO2驱油技术的现场实施提供了理论依据。

The behavior of CO2 in reservoir pore body and throat has been simulated at different temperatures and pressures with a self-developed microscopic experimental system. The interaction mechanism between CO2 and crude oil has been studied based on visual microscopic experiments. This paper explains why CO2 flooding is more efficient than other oil displacement agents and provides theoretical basis for field implementation of CO2 flooding.