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Title: Estimation of single-phase permeability from parameters of particle-size distribution

Abstract

The single-phase permeability of a permeable medium is determined by both the bulk physical properties of the interconnected pore system (e.g., porosity and tortuosity) and the statistics of its particle-size distribution (psd). An expression of the relation between permeability and pore-level properties is the Carman-Kozeny (CK) equation. This equation has historically been used to explain the fundamental causes of permeability because it provides a link between media attributes and flow resistance. Because the CK equation has not been applied to media consisting of mixed particle sizes, the authors modify the CK equation to express the single-phase permeability of unconsolidated media in terms of both the psd statistics and the bulk physical properties. They find that they can relate permeability to the parameters of a psd for unconsolidated media. This relationship matches published data. It generally fails for permeabilities less than 1 [mu]m[sup 2] ([approximately]1 darcy), probably because not all of the pore space is supporting flow in this region. With the model partially verified by experimental data, it is used to investigate the nature of permeability-porosity relationships and of the origin of variability in permeability. The latter capability will explain many of the permeability differences observed in outcrop studies.

Authors:
;  [1]
  1. Univ. of Texas, Austin, TX (United States)
Publication Date:
OSTI Identifier:
7065499
Resource Type:
Journal Article
Journal Name:
AAPG Bulletin (American Association of Petroleum Geologists); (United States)
Additional Journal Information:
Journal Volume: 78:7; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 02 PETROLEUM; PARTICLE SIZE; MATHEMATICAL MODELS; POROUS MATERIALS; PERMEABILITY; ENHANCED RECOVERY; MATERIALS; SIZE; 580000* - Geosciences; 020300 - Petroleum- Drilling & Production

Citation Formats

Panda, M N, and Lake, L W. Estimation of single-phase permeability from parameters of particle-size distribution. United States: N. p., 1994. Web.
Panda, M N, & Lake, L W. Estimation of single-phase permeability from parameters of particle-size distribution. United States.
Panda, M N, and Lake, L W. Fri . "Estimation of single-phase permeability from parameters of particle-size distribution". United States.
@article{osti_7065499,
title = {Estimation of single-phase permeability from parameters of particle-size distribution},
author = {Panda, M N and Lake, L W},
abstractNote = {The single-phase permeability of a permeable medium is determined by both the bulk physical properties of the interconnected pore system (e.g., porosity and tortuosity) and the statistics of its particle-size distribution (psd). An expression of the relation between permeability and pore-level properties is the Carman-Kozeny (CK) equation. This equation has historically been used to explain the fundamental causes of permeability because it provides a link between media attributes and flow resistance. Because the CK equation has not been applied to media consisting of mixed particle sizes, the authors modify the CK equation to express the single-phase permeability of unconsolidated media in terms of both the psd statistics and the bulk physical properties. They find that they can relate permeability to the parameters of a psd for unconsolidated media. This relationship matches published data. It generally fails for permeabilities less than 1 [mu]m[sup 2] ([approximately]1 darcy), probably because not all of the pore space is supporting flow in this region. With the model partially verified by experimental data, it is used to investigate the nature of permeability-porosity relationships and of the origin of variability in permeability. The latter capability will explain many of the permeability differences observed in outcrop studies.},
doi = {},
journal = {AAPG Bulletin (American Association of Petroleum Geologists); (United States)},
issn = {0149-1423},
number = ,
volume = 78:7,
place = {United States},
year = {1994},
month = {7}
}