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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 76 (1992)

Issue: 2. (February)

First Page: 191

Last Page: 198

Title: Relationship of Porosity and Previous HitPermeabilityNext Hit to Various Parameters Derived Previous HitfromNext Hit Mercury Injection-Capillary Pressure Curves for Previous HitSandstoneNext Hit (1)

Author(s): EDWARD D. PITTMAN (2)


Pore aperture size estimated Previous HitfromNext Hit mercury injection tests has been used to evaluate seals for traps and to explain the locations of stratigraphic hydrocarbon accumulations. However, mercury injection tests are expensive and therefore not abundant. This paper develops empirical equations for estimating certain pore aperture size parameters Previous HitfromNext Hit routine core analysis. The relationship of porosity, uncorrected air Previous HitpermeabilityNext Hit, and various parameters derived Previous HitfromNext Hit mercury injection-capillary pressure curves was established using multiple regression on a database of 202 samples of Previous HitsandstoneNext Hit Previous HitfromNext Hit 14 formations that range in age Previous HitfromNext Hit Ordovician to Tertiary. These Previous HitsandstoneNext Hit formations vary in composition and texture.

A series of empirically derived equations also permits the calculation of pore aperture radii corresponding to mercury saturation values that range Previous HitfromNext Hit 10 to 75% in increments of five. This makes it possible to construct a calculated pore aperture radius distribution curve using porosity and Previous HitpermeabilityNext Hit Previous HitfromNext Hit core analysis.

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