The Simulation of Viscous Fingering by Diffusion-Limited-Aggregation Model Based on Pressure-Oriented Rule

DOI

10.2991/icaees-15.2015.271How to use a DOI?

Keywords

Viscous fingering; DLA; 3D digital core; LBM.

Abstract

Viscous fingering phenomenon happens during CO2 flooding because of viscosity differences between CO2 and crude oil. It leads to premature breakthrough of displacement fluid and decrease of sweep efficiency. In this paper, a three dimensional Diffusion-Limited-Aggregation model based on pressure-oriented rule is presented to account for the effect of viscosity ratio, injection rate on viscous fingering. Furthermore, Digital cores in our simulation are obtained by CT experiment from real rocks. The results show that viscosity difference is the dominating factor that influences viscous fingering. With the increase of viscosity difference between the two displacement fluids, sweep efficiency decreases dramatically. At appropriate injection rate, the effect of viscous fingering can be decreased.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wei Tian
AU  - Detang Lu
PY  - 2015/07
DA  - 2015/07
TI  - The Simulation of Viscous Fingering by Diffusion-Limited-Aggregation Model Based on Pressure-Oriented Rule
BT  - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015
PB  - Atlantis Press
SP  - 1452
EP  - 1455
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaees-15.2015.271
DO  - 10.2991/icaees-15.2015.271
ID  - Tian2015/07
ER  -