Joint testing device and method of rheological property of polymer solution and relative permeability of core
A polymer solution, relative permeability technology, used in measuring devices, DC flow characteristics measurement, permeability/surface area analysis, etc. Realize problems such as automatic data collection to achieve the effect of maintaining stability
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[0037] For example, the relevant parameters of a core are: porosity is 31.66%, permeability is 1380 mD, length is 5.46 cm, the rheological parameter C measured by the polymer solution used in the experiment is 21.229, and the power law exponent n is 0.6923. Oil displacement phase permeability experiment. Viscosities of polymer solutions at different times and different injection volumes can be measured, as shown in the following table:
[0038] Table 1 Statistical table of polymer solution viscosity under different injection volumes
[0039]
[0040] By taking the viscosity value calculated in the above table into the calculation of relative permeability, the relative permeability curve of polymer and oil can be calculated and drawn, such as figure 2 shown.
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