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Analytical Solutions of Carbonate Acidizing in Radial Flow

Abstract

The flow of reactive fluids into porous media, a phenomenon known as reactive infiltration, is important in natural and engineered systems. While most of the studies in this area cover theoretical and experimental analyses in linear acid flow, the present work concentrates on radial flow conditions from a wellbore in the field and on finding exact analytical solutions to moving boundary problems of the uniform dissolution front. Closed-form solutions are obtained for the transient convection–diffusion which allow the demarcation of the range of applicability of the quasi-static limit. The fluid velocity dependency of the diffusion–dispersion coefficient is also examined by comparing results from analytical solutions from constant and velocity-dependent coefficients. These contributions form the basis for linear
stability analyses to describe acid fingering encountered in reservoir stimulation.
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Category

Academic article

Language

English

Author(s)

Affiliation

  • SINTEF Industry / Applied Geoscience
  • Aristotle University of Thessaloniki

Year

2021

Published in

Transport in Porous Media

ISSN

0169-3913

Volume

139

Page(s)

223 - 245

View this publication at Norwegian Research Information Repository