For a given temperature, injection gas composition, and reservoir fluid composition, the minimum miscibility pressure (MMP) is the lowest pressure at which miscibility can be achieved for a specific miscibility process, i.e. \(MMP_{C/V}\) by condensing/vaporizing gas drive, \(MMP_{VGD}\) by vaporizing gas drive, and \(MMP_{FC}\) by first contact.

Prediction of the minimum miscibility pressure (MMP) of the vaporizing gas drive (VGD) process is modeled by use of an equation of state (EOS) with different mixing rules joined with a newly formulated expression for the unlike three-body interactions between the …

1998年1月1日 · The pressure at which the critical tie line extension goes through the oil is the minimum required pressure to achieve miscibility, hence, called the minimum miscibility pressure(MMP). At MMP, the limiting tie line becomes the critical tie line as the gas phase enriches through multiple contacts with the original oil attaining the critical ...

2024年10月1日 · Traditional theoretical model and microfluidic experiment often fail to accurately depict the minimum miscible pressure (MMP) of CO 2 –shale oil in nanopores. In this study, nanofluidic experiments were conducted to investigate the MMP of CO 2 –alkanes in single pore channels and porous media channels with depths of 30 nm and 100 nm.

Prediction of the minimum miscibility pressure (MMP) of the vaporizing gas drive (VGD) process is modeled by use of an equation of state (EOS) with different mixing rules joined with a newly formulated expression of the unlike three-body interactions between the …

在优选注气工艺时，岩芯驱替实验、气体与原油的最小混相压力测定（MMP）是油藏实现混相驱的基础。 针对上述问题，首先讨论了混相驱岩芯驱替实验的影响因素，其次分析了地层温度、气体组成、原油组成等条件对MMP的影响，再次，对比分析了不同测定MMP的实验方法，最后，对近年来新研发的MMP测试手段进行了归纳总结。 当用天然岩芯进行混相驱研究时，为达到混相建议选择尽可能长的岩芯。 MMP的测试手段种类繁多，但目前仍未形成公认的实验方法。

2001年2月1日 · Minimum miscibility conditions of pressure and enrichment (MMP/MME) have been computed with an equation of state (EOS) for several reservoir-fluid systems exhibiting compositional gradients with...

摘要： 最小混相压力 (MMP)是气驱提高采收率研究中重要参数之一。 最小混相压力计算方法包括经验公式法和理论预测法。 在深入研究最小混相压力的主控影响因素基础上,建立了修正的最小混相压力经验计算模型,同时对目前的理论预测方法提出了提高计算精度的研究思路。 提出的理论计算方法和经验预测方法计算精度都在90%以上,具有较好的可靠性。 关键词: 气驱, 最小混相压力, 经 …

The vaporizing gas drive (VGD) process was modeled with the Peng-Robinson equation of state (PR-EOS) and a compositional simulator. The comparison of numerical results with available experimental data has shown that the PR-EOS overestimates the minimum miscibility pressure (MMP), but it correctly shows that the length required to achieve ...

2006年11月15日 · Our calculations show that the miscible displacement of gas condensates can be obtained at pressures far below the dew point for injection gases sufficiently enriched with CO 2 and NGLs (C 2 –C 5).