Rising bubble Apparatus

micro pump

This laboratory apparatus is used to determine the minimum miscibility pressure (MMP) between reservoir oil and injection gas. The apparatus is consisted of a glass tube mounted vertically in a high pressure visual cell which all placed in a temperature controlled bath. To work with the apparatus, a gas bubble is injected at the bottom of the glass tube, and rises in the column of oil. As the bubble rises, its shape and motion are observed and photographed. Then, the oil column can be replaced with fresh air and tests can be performed under other pressures. At pressures below the MMP, the bubble reduces in size but holds its sphericalRising-Bubble shape. At or slightly higher than MMP the bubble disappears in the oil. By doing this test at several pressures, the MMP can be achieved.


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