Measuring Permeability Anisotropy: The Latest Approach 

Permeability Anisotrophy
Publication: Oilfield Review
Volume: 6
Issue: 4
Publication Date: 10/01/1994

Permeability is an elusive beast. Its value changes with scale and also with direction—vertical permeability may differ from horizontal permeability giving rise to the term permeability anisotropy. We look at how this anisotropy affects reservoir management, review the various techniques used to measure permeability anisotropy, and, in particular, describe how new generation MDT Modular Formation Dynamics Tester wireline testing can provide measurements at a scale that complements other techniques.