Reservoir characterization

Gamma-Ray-Tool Characterization Avoids Traditional Limitations

In this paper, the authors discuss the characterization process for GR tools and how they behave in boreholes different from the one used in the University of Houston (UH) GR characterization pit.

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A major issue with gamma-ray (GR) logs is that the API definition is valid only if the tool is run in a 4.89‑in. borehole filled with fresh water. Although all GR tools are intended to provide the same results for such a well, in the field there is no single one-size-fits-all concept. In this paper, the authors discuss the characterization process for GR tools and how they behave in boreholes different from the one used in the University of Houston (UH) GR characterization pit.

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