Abstract
The effect of pipe eccentricity on the flow of well bore fluids in annuli is investigated both analytically and experimentally. The expression for azimuthal velocity as a function of the eccentricity ratio and rheological parameters of the fluid was obtained analytically using a linear fluidity model. Velocity profiles were measured for a Newtonian glycerol/water mixture and a non-Newtonian oil field spacer fluid in eccentric annuli using the stroboscopic flow visualization method. Measured velocity profiles in the eccentric annulus compare well to analytical predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 119-132 |
| Number of pages | 14 |
| Journal | Journal of Non-Newtonian Fluid Mechanics |
| Volume | 78 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - Aug 1 1998 |
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Applied Mathematics