Miscible displacement of viscous, non-Newtonian fluids in different geometries. An analytical approach
This work deals with the problem of the miscible displacement of one fluid by another under conditions such that diffusion and radial convective effects can be ignored. Solutions are given for the displacement occurring between parallel plates (narrow annuli) and in tubes under conditions of constant flow rate. For tubes, a solution also is given for the case when a constant pressure drop is imposed across the flow field. The analytical approach is used takes advantage of principles from the hydrodynamic theory of lubrication. The results show that the process can be characterized in terms of several dimensionless groups on the geometry of the flow field and the density and rheological behavior of the fluids. Computer programs are provided which can be used to simulate the displacement process and therefore calculate the displacement efficiency for a given set of conditions. Possible applications for these mathematical models are the study of the displacement of drilling muds by cement slurries during oil and gas well completion operations and the washing of filter cakes in chemical processes such as filtration.
- OSTI ID:
- 6604253
- Resource Relation:
- Other Information: Thesis (Ph.D.)
- Country of Publication:
- United States
- Language:
- English
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