CAJ | 학술논문

　　CO2最小混相压力是确定油藏能否采用CO2混相驱的重要依据。细管实验是测定最小混相压力的首选实验方法。它通常被用来确定某一给定的原油最小混相压力。在获得的驱油效率与注入孔隙体积倍数以及驱油效率与驱替压力的关系曲线中，曲线拐点所对应的压力(或组分组成)即为最低混相压力。除了细管实验外，本文还采用了经验公式计算和状态方程法等方法预测最小混相压力，最后确定CO2混相驱最小混相压力，为进行二氧化碳混相驱先导试验提供决策依据。
　　CO2최소혼상압력시학정유장능부채용CO2혼상구적중요의거。세관실험시측정최소혼상압력적수선실험방법。타통상피용래학정모일급정적원유최소혼상압력。재획득적구유효솔여주입공극체적배수이급구유효솔여구체압력적관계곡선중，곡선괴점소대응적압력(혹조분조성)즉위최저혼상압력。제료세관실험외，본문환채용료경험공식계산화상태방정법등방법예측최소혼상압력，최후학정CO2혼상구최소혼상압력，위진행이양화탄혼상구선도시험제공결책의거。
An important parameter used to determine the feasibility of miscible displacement is the minimum miscibility pressure. Slimtube measurements are the preferred method for establishing minimum miscibility pressures experimentally. Slim-Tube displacement tests are commonly used to determine an MMP for a given crude oil. The minimum miscibility pressure is defined as the pressure of which the oil recovery vs. pressure curve (as generated from the slimtube test) shows a sharp change in slope, i.e. the inflection point. In addition to the slimtube simulations, several algorithms for estimating the minimum miscibility pressure have been compared. Minimum miscibility pressure between formation crude and CO2 is determined. It will provide decision basis for the pilot test of CO2 miscible displacement in this block.