The Role of Moldic Porosity in Paleozoic Kansas Reservoirs and the Association of Original Depositional Facies and Early Diagenesis With Reservoir Properties

Kansas Geological Survey Open-file Report 2003-32

Arbuckle Architecture

Packaging of Facies Creates Heterogeneity at Various Scales

Lithologies are stacked into cycles and cycle bundles that affect vertical and lateral heterogeneity and variable connectivity to the underlying Arbuckle aquifer.

Possible End-member Reservoir Architectures

The architecture of the Arbuckle can be character as representing three basic end-members:

1. Fracture-dominated, facies control and layer permeability but fractures dominate reservoir permeability and vertical water flow
2. Karst-dominated; complex and permeability reflecting the interaction of karst processes and early lithofacies petrophysical properties
3. Facies-dominated; facies and dolomitization control and k. Even within fields Arbuckle architectures vary between these end-members. Controls for why an end-member forms in any given location are a function of the combined influence of stratigraphic, structural, facies, and karst influences.

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Last updated June 2003
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