Newtonian and Non-Newtonian Flows through Mini-channels and Micro-scale Orifices for SAGD Applications

  • Author / Creator
    Ansari, Shadi
  • This experimental investigation examined the inflow to a producer well geometry found in a typical steam assisted gravity drainage (SAGD) process. The flow of Newtonian and non-Newtonian fluid through mini-channels (Dh = 0.837 µm) and micro-scale orifices (keystone slots, Dh = 0.858 µm) were considered. The major goal was to describe the velocity distribution and this was undertaken using particle image velocimetry (PIV). The velocity profile determined for the flow through the long channel was used to find the rheological parameters of the fluid. Theory of the rheology of non-Newtonian fluids along with PIV measurements were used to find the flow index, n, and flow consistency index, k. These where validated against commercial rheometer. It was shown that measuring the velocity distribution of a non-Newtonian fluid can be used to identify rheological property of the fluid. The second set of experiments considered the flow of Newtonian (water), and non-Newtonian (polyacrylamide) fluids to study the respective velocity profiles using PIV. The results showed that an increase in slot angle, θ, increased the gradient at which the velocity reduced along the channel. At low flow rates, the increase in slot angle (θ≥ 6°) caused a flow separation phenomenon which was only present for the Newtonian fluid. Comparison with theory showed that the Newtonian flow profiles found from experiment matched well while for the non-Newtonian fluid the profiles deviated from expected. This was a result of the contraction-expansion geometry which increased the shear rate giving the fluid a pseudo-Newtonian-like behavior.

  • Subjects / Keywords
  • Graduation date
    Spring 2016
  • Type of Item
  • Degree
    Master of Science
  • DOI
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.