Abdurrahman Muslim, Permadi Asep Kurnia, Arsad Agus, Abdul Rahman Anis Farhana, Bae Wisup, Husna Ully Zakyatul, Pang Ai Ling, Fauzi Rifal
Department of Petroleum Engineering, Universitas Islam Riau, Riau 28284 Indonesia.
Department of Petroleum Engineering, Institut Teknologi Bandung, Jawa Barat 40132, Indonesia.
ACS Omega. 2023 Feb 24;8(9):8703-8711. doi: 10.1021/acsomega.2c08085. eCollection 2023 Mar 7.
The effectiveness of CO-enhanced oil recovery (EOR) is strongly dependent on the CO-oil minimum miscible pressure (MMP) value, which can be estimated using various methods. In this study, interfacial tension (IFT) and slim-tube tests were used to estimate the MMP value. Experimental results indicated that the IFT test had a higher MMP value than the slim-tube test. Particularly, the outcomes of IFT and the slim-tube tests differed slightly, i.e., 0.7% and 4.3% at 60 and 66 °C, respectively. Furthermore, the current work also compares MMP data gathered using visual observation and equation of state (EOS) simulation. The MMP estimated by EOS is higher but close to the IFT and slim-tube recovery factor method, where all results are within the 1650-1700 psi and 1700-1800 psi visual observation ranges at 60 and 66 °C, respectively. However, MMP deviations concerning the slim-tube test and EOS were consistent at different temperatures. This study offers an alternative to estimate and evaluate CO-oil MMP for EOR applications accurately and efficiently.
CO2强化采油（EOR）的有效性强烈依赖于CO2与原油的最小混相压力（MMP）值，该值可用多种方法估算。在本研究中，采用界面张力（IFT）和细管试验来估算MMP值。实验结果表明，IFT试验得到的MMP值高于细管试验。特别是，IFT和细管试验的结果略有不同，即在60℃和66℃时分别相差0.7%和4.3%。此外，本研究还比较了通过视觉观察和状态方程（EOS）模拟收集的MMP数据。EOS估算的MMP值较高，但接近IFT和细管采收率法，在60℃和66℃时，所有结果分别在1650 - 1700 psi和1700 - 1800 psi的视觉观察范围内。然而，细管试验和EOS在不同温度下的MMP偏差是一致的。本研究为准确、高效地估算和评估用于EOR应用的CO2与原油的MMP提供了一种替代方法。
