An integrated approach to reservoir characterization in the Illinois Basin

D. F. Oltz, H. E. Leetaru, B. Seyler, S. T. Whitaker

Research output: Contribution to journalArticlepeer-review


The Illinois State Geological Survey (ISGS) possesses reservoir characterization capabilities that derive from the use of geological and engineering data and techniques including: porosity and permeability measurements, core-flow experimentation, petrography, scanning electron microscopy and energy dispersive x-ray, x-ray diffraction, workstations and computer modeling of geological, geochemical and engineering data. Additionally, a large core and sample library is maintained. Our approach has been to define several areas of scientific inquiry, select two target reservoirs, and plan a short- to long-term research agenda. The multidisciplinary tasks necessary to implement such a program are illustrated. This paper briefly illustrates three facets of the current project: first, a field where there are severe limitations on the available data; second, an improved methodology for local use of old electric logs that make up much of our data base; and third, a field with a relatively large amount of data. -from Authors

Original languageEnglish (US)
Pages (from-to)38-60
Number of pages23
JournalUnknown Journal
StatePublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • General Environmental Science
  • General Earth and Planetary Sciences


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