Effective porosity and pore-throat sizes of Conasauga Group mudrock: Application, test and evaluation of petrophysical techniques
- Oak Ridge National Lab., TN (United States). Environmental Sciences Div.
- Geological Survey of Canada, Ottawa, Ontario (Canada). Mineral Resources Div.
- Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Civil and Mineral Engineering
- Purdue Univ., West Lafayette, IN (United States). Dept. of Earth and Atmospheric Sciences
Effective porosity (specifically referring to the interconnected pore space) was recently recognized as being essential in determining the effectiveness and extent of matrix diffusion as a transport mechanism within fractured low-permeability rock formations. The research presented in this report was performed to test the applicability of several petrophysical techniques for the determination of effective porosity of fine-grained siliciclastic rocks. In addition, the aim was to gather quantitative data on the effective porosity of Conasauga Group mudrock from the Oak Ridge Reservation (ORR). The quantitative data reported here include not only effective porosities based on diverse measurement techniques, but also data on the sizes of pore throats and their distribution, and specimen bulk and grain densities. The petrophysical techniques employed include the immersion-saturation method, mercury and helium porosimetry, and the radial diffusion-cell method.
- Research Organization:
- Oak Ridge National Lab., Environmental Sciences Div., TN (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 631178
- Report Number(s):
- ORNL/GWPO-021; ON: DE98003657; BR: EU2010301; TRN: 98:007033
- Resource Relation:
- Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
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