Formulation of the flow problem in anisotropic porous media using different coordinate transformations

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


To solve an anisotropic flow problem, we transform the problem into an equivalent isotropic problem. We expect that an anisotropic solution can be readily obtained from the equivalent isotropic solution. However, sometimes it is not the case. In this paper we use the drawdown equation of a fully-penetrated vertical well test, and the drawdown and buildup equations for a probe test to discuss when we can and when we cannot directly obtain an anisotropic solution from an isotropic solution in this paper. Due to the fact that transformation causes the changes in flow geometry and the shape of the wellbore or probe, we have to modify the equivalent isotropic solution to obtain the anisotropic solution. Finally, we present a case that the horizontal well productivity was incorrectly derived in a published paper, due to the misuse of the concept of anisotropy.

Original languageEnglish
Pages (from-to)203-208
Number of pages6
JournalJournal of Petroleum Science and Engineering
Issue number1-2
StatePublished - Dec 2010


  • Anisotropy
  • Coordinate transformation
  • Equivalent compressibility
  • Equivalent probe radius
  • Equivalent time
  • Equivalent wellbore radius


Dive into the research topics of 'Formulation of the flow problem in anisotropic porous media using different coordinate transformations'. Together they form a unique fingerprint.

Cite this