A novel quantitative petrophysical model for the stress sensitivity of tight sandstones

Zhang, Haiyong; Liu, Huiqing; Luan, Guohua; He, Shunli; Gu, Da-Ming; Mo, Shaoyuan; Lei, Gang

doi:10.1016/j.petrol.2014.09.008

Cited by 14 publications

(3 citation statements)

References 22 publications

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“…[35][36][37][38][39] It was assumed that the porous media was composed of a bundle of capillary bundles and a single capillary with the equivalent radius r was made up of a packing of three equivalent spherical grains. 6,40 The change of pore-throat size could be determined by the deformation of the equivalent spherical grains 13,40 (Fig. 5).…”

Section: Theoretical Modelmentioning

confidence: 99%

“…It is reported that the porous media will be compressed as the effective stress increases, causing fluid flow behavior in porous media to be strongly stress-dependent. [12][13][14] Therefore, it is essential to understand and quantify the Theoretical and Experimental Study on Stress-Dependency stress-dependent relative permeability to characterize the multiphase fluid flow behaviors. However, the reported studies for the effects of changing stress on relative permeability are very scarce and the stress sensitivity of relative permeability has received little attention.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and Experimental Study on Stress-Dependency of Oil–water Relative Permeability in Fractal Porous Media

Lei

Dong

et al. 2018

Fractals

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The coupled flow deformation behavior in the porous media has drawn tremendous attention in various scientific and engineering fields. It is reported that the porous media will be compressed and relative permeability in porous media will be changed as the effective stress increases. However, previous studies provided contradictory evidence for the stress-dependent irreducible water saturation and stress-dependent relative permeability. Until now, appropriate stress-dependent relative permeability curve for two-phase flow through porous media remains unclear. The goal of this work was to theoretically and experimentally study the stress-dependent relative permeability. Laboratory sample flooding tests were conducted to measure two-phase relative permeability in porous media under changing effective stress, and a corresponding theoretical model of stress-dependent relative permeability was derived to interpret the experimental results. The predictions from the proposed analytical model exhibited similar variation trends as the experimental data, which verified the theoretical model. Though the results for the stress-dependent relative permeability from previous studies are different, or even opposite, our proposed model with different conditions can provide explanations to these different results. This work provides a comprehensive experimental and theoretical study of stress-dependent relative permeability in porous media, which is beneficial to accurate performance forecasts for the coupled flow deformation behavior in porous media.

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Section: Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study on Stress-Dependency of Oil–water Relative Permeability in Fractal Porous Media

Lei

Dong

et al. 2018

Fractals

Self Cite

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“…The pore‐scale network model based on pore structure reconstruction is established 24‐26 . Zhang et al 27 and Dou et al 28 presented models for calculating permeability stress sensitivity. Based on the fractal theory, prediction models for the permeability and porosity of porous media were proposed 29‐35 .…”

Section: Introductionmentioning

confidence: 99%

Experimental study on stress sensitivity of high‐temperature and high‐pressure sandstone gas reservoirs in Yingqiong Basin

Yi-long

et al. 2020

Energy Science & Engineering

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An Experimental Study on Porosity and Permeability Stress-Sensitive Behavior of Sandstone Under Hydrostatic Compression: Characteristics, Mechanisms and Controlling Factors

Lin

Kang

et al. 2018

Rock Mech Rock Eng

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A novel quantitative petrophysical model for the stress sensitivity of tight sandstones

Cited by 14 publications

References 22 publications

Theoretical and Experimental Study on Stress-Dependency of Oil–water Relative Permeability in Fractal Porous Media

Theoretical and Experimental Study on Stress-Dependency of Oil–water Relative Permeability in Fractal Porous Media

Experimental study on stress sensitivity of high‐temperature and high‐pressure sandstone gas reservoirs in Yingqiong Basin

An Experimental Study on Porosity and Permeability Stress-Sensitive Behavior of Sandstone Under Hydrostatic Compression: Characteristics, Mechanisms and Controlling Factors

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