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Proceedings ArticleDOI

Improved Permeability Prediction Relations for Low Permeability Sands

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TLDR
In this article, the problem of estimating Klinkenbergcorrected permeability from single-point, steady-state measurements on samples from low permeability sands is addressed, and the original problem of predicting the corrected or "liquid equivalent" permeability has been under investigation since the early 1940s.
Abstract
This work addresses the problem of estimating Klinkenbergcorrected permeability from single-point, steady-state measurements on samples from low permeability sands. The "original" problem of predicting the corrected or "liquid equivalent" permeability (i.e., referred to as the Klinkenbergcorrected permeability) has been under investigation since the early 1940s — in particular, using the application of "gas

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Journal ArticleDOI

An effective stress-dependent dual-fractal permeability model for coal considering multiple flow mechanisms

TL;DR: In this paper , a dual-fractal permeability model was proposed to quantitatively investigate the impacts of coal internal structure on the coal permeability, which was verified with field data and achieved a good agreement.
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Permeability of Space Vehicle Fibrous Thermal Protection Blankets in Viscous and Slip Flow Regimes

TL;DR: In this paper, the authors measured the permeability of thermal protection blankets by flowing air and helium at pressure differentials of up to 33.3 kPa across the material and found that the flow through the fibrous blanket is characterized by a compressible formulation of Darcy's law with the addition of Klinkenberg slip factor.
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Impact of dynamic slippage on productivity of shale reservoirs

TL;DR: In this paper, the applicability of dynamic slippage as an effective flow mechanism governing gas flow mechanisms within the computational environment of two different simulators is attempted in this analysis.
References
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Journal ArticleDOI

Micro Flows: Fundamentals and Simulation

TL;DR: In this paper, the authors present a simulation of the transition and free-molecular regime of pressure-driven liquid flow in a shear-driven and separated liquid flow model.
Journal ArticleDOI

A Laboratory Study of Low-Permeability Gas Sands

TL;DR: This paper developed correlations for predicting a reservoir's in situ permeability from routine core-analysis data and found that the routine permeability values of tight gas sands are often more than 100 times greater than permeabilities under actual reservoir conditions because of the great relief of stress, absence of connate water, and increased gas slippage.
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