Abstract
During the polymer flooding multi-layered injection process, it is difficult to achieve large pressure drop and small viscosity loss at the same time in the injection allocators. To address this issue, two kinds of flow channel structures are designed. They are ring groove structure and spindle groove structure. CFD software FLUENT is used to simulate the flow characteristics of non-Newton fluid flowing in the above structures, which are complex annular channels. By comparing the pressure drop, velocity contours and turbulent kinetic energy, the spindle groove structure is preferred. It has large throttle depressurization and big solution viscosity retention rate within a limited length. The influence from different flow channels structure on pressure drop is limited, but the impact on viscosity loss is great.
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