A complete understanding of the various rock properties is essential in determining the rockfluid interactions that take place during coreflood experiments. Although Berea sandstone, Baker dolomite and Indiana limestone have been used by the petroleum industry as reference materials, very few data have been reported in the literature regarding their basic rock properties. This paper contains petrographic and petrophysical data for these rock types. Twelve representative samples were selected to study the variability and the relationship of several rock properties, including mineral content, grain and pore size, porosity, permeability, specific surface area, mercury capillary pressure, and electrokinetic properties.

The results indicate: 1) the Upper Berea sandstone samples studied exhibit correlations between porosity, permeability, specific surface area, and various parameters obtained from the mercury capillary pressure analyses that may be used to predict certain rock properties, 2) Baker dolomite and Indiana limestone contain a small amount of clays and organic matter, 3) These carbonates show a bimodal pore throat size distribution based on mercury capillary pressure analyses, and 4) The surface charges of these rocks are very dependent on the brine composition and pH.

The specific surface area and surface charge data can be used to determine the amount of chemical retention during corefloods using these or similar reservoir rocks. This information is necessary to optimize chemical processes used in the oilfield.

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