Relationship of porosity and permeability to various parameters derived from mercury injection-capillary pressure curves for sandstone
- Univ. of Tulsa, OK (United States)
Pore aperture size estimated from 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 from routine core analysis. The relationship of porosity, uncorrected air permeability, and various parameters derived from mercury injection-capillary pressure curves was established using multiple regression on a database of 202 samples of sandstone from 14 formations that range in age from Ordovician to Tertiary. These sandstone 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 from 10 to 75% in increments of five. This makes it possible to construct a calculated pore aperture radius distribution curve using porosity and permeability from core analysis.
- OSTI ID:
- 5597475
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 76:2; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
NATURAL GAS DEPOSITS
RESERVOIR ROCK
PETROLEUM DEPOSITS
PERMEABILITY
POROSITY
CAPILLARY FLOW
EQUATIONS
GEOLOGIC MODELS
GEOLOGIC TRAPS
MICROSTRUCTURE
SANDSTONES
CRYSTAL STRUCTURE
FLUID FLOW
GEOLOGIC DEPOSITS
MINERAL RESOURCES
RESOURCES
ROCKS
SEDIMENTARY ROCKS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
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