Table 1 Model geometrical parameters
Model geometrical parameter | Value |
|---|---|
Well bore diameter (annulus outer dia.),\({D}_{o}\) | 80 mm |
Drill Pipe diameter (annulus outer dia.),\({D}_{i}\) | 60 mm |
Annulus length, \({L}_{e}\) (> 100 \({D}_{H}\)) | 2.5 m |
Hydraulic mean diameter,\({D}_{H}= {D}_{o}- {D}_{i}\) | 20 mm |
Annulus eccentricity | 8 mm |