The Effect of CO2 Adsorption on Permeability Anisotropy in the Eagle Ford Shale

Ismail, Maytham Al; Reece, Julia S.; Hol, Sander; Zoback, Mark D.

doi:10.15530/urtec-2014-1921520

Cited by 45 publications

(11 citation statements)

References 5 publications

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“…Pini et al 2009). A similar effect was reported by Al Ismail et al (2014), who reported a 10% decrease in layer-parallel shale permeability and a much larger, ~ 1 order of magnitude reduction in layer-perpendicular permeability, ascribed to CO 2 adsorption. However, since in our samples, the content of phases that may swell (smectite, organics) was minor, this is less likely to have been significant.…”

Section: Argon and Co 2 Permeabilitiessupporting

confidence: 82%

Water, CO2 and Argon Permeabilities of Intact and Fractured Shale Cores Under Stress

Noort

Yarushina

2018

Rock Mech Rock Eng

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As shale is the caprock over many reservoirs targeted for CO 2 storage, shale permeability to CO 2 has become an important concern. Measurements of this permeability need to be performed under in-situ conditions, with realistic temperatures, confining pressures and fluid pressures, and the effects of variables such as pressure, temperature, and shale moisture content need to be thoroughly addressed. Furthermore, the exposure of wet shale to dry CO 2 can lead to, for example, dehydration and two-phase flow, that in turn affect permeability. This paper reports shale permeability measurements performed on two shale core plugs from Svalbard, under in-situ pressure and temperature conditions relevant for CO 2 storage, using argon, CO 2, and water as the permeate, and using both transient pulse and constant flow techniques. Permeability was found to be dependent mainly on effective confining pressure and on shale moisture content. The following was observed: (1) permeability decreased with increasing effective confining pressure; (2) permeability to water was lower than permeability to Ar or CO 2 ; (3) shale moisture content had a strong inhibiting effect on the flow of Ar and CO 2 ; (4) when a high CO 2-flow was applied to a shale sample containing a hydrous pore fluid, a breakthrough effect occurred; and (5) in the presence of pore water, compaction creep can occur, causing a permanent decrease in permeability.

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Section: Argon and Co 2 Permeabilitiessupporting

confidence: 82%

Water, CO2 and Argon Permeabilities of Intact and Fractured Shale Cores Under Stress

Noort

Yarushina

2018

Rock Mech Rock Eng

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“…Permeability measurements follow the same experimental setup used by (Heller et al, 2014;Al Ismail et al, 2014). Samples were loaded inside a hydrostatic pressure vessel core holder connected to an isco 100DX syringe pump for confining pressure.…”

Section: Permeability Experimental Setupmentioning

confidence: 99%

Effects of Hydraulic Fracturing Fluid Chemistry on Shale Matrix Permeability

Alalli¹,

Li²,

Jew³

et al. 2018

Proceedings of the 6th Unconventional Resources Technology Conference

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The URTeC Technical Program Committee accepted this presentation on the basis of information contained in an abstract submitted by the author(s). The contents of this paper have not been reviewed by URTeC and URTeC does not warrant the accuracy, reliability, or timeliness of any information herein. All information is the responsibility of, and, is subject to corrections by the author(s). Any person or entity that relies on any information obtained from this paper does so at their own risk. The information herein does not necessarily reflect any position of URTeC. Any reproduction, distribution, or storage of any part of this paper by anyone other than the author without the written consent of URTeC is prohibited.

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“…Cheng et al [75] and Armitage et al [76] investigated the effects of permeability anisotropy on buoyancy driven CO 2 flow. Al Ismail et al [77] investigated the effects of CO 2 adsorption on permeability anisotropy. Taheri et al [78] made an attempt to investigate the effects of anisotropy and heterogeneity in both the horizontal and vertical directions of layering on the CO 2 dissolution in a saturated porous medium with brine using simulation methods.…”

Section: The Petrophysical and Mechanical Characteristics Of Shalementioning

confidence: 99%

Micro- and Macroscale Consequences of Interactions between CO2 and Shale Rocks

et al. 2020

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In carbon storage activities, and in shale oil and gas extraction (SOGE) with carbon dioxide (CO2) as stimulation fluid, CO2 comes into contact with shale rock and its pore fluid. As a reactive fluid, the injected CO2 displays a large potential to modify the shale’s chemical, physical, and mechanical properties, which need to be well studied and documented. The state of the art on shale–CO2 interactions published in several review articles does not exhaust all aspects of these interactions, such as changes in the mechanical, petrophysical, or petrochemical properties of shales. This review paper presents a characterization of shale rocks and reviews their possible interaction mechanisms with different phases of CO2. The effects of these interactions on petrophysical, chemical and mechanical properties are highlighted. In addition, a novel experimental approach is presented, developed and used by our team to investigate mechanical properties by exposing shale to different saturation fluids under controlled temperatures and pressures, without modifying the test exposure conditions prior to mechanical and acoustic measurements. This paper also underlines the major knowledge gaps that need to be filled in order to improve the safety and efficiency of SOGE and CO2 storage.

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The Effect of CO2 Adsorption on Permeability Anisotropy in the Eagle Ford Shale

Cited by 45 publications

References 5 publications

Water, CO2 and Argon Permeabilities of Intact and Fractured Shale Cores Under Stress

Water, CO2 and Argon Permeabilities of Intact and Fractured Shale Cores Under Stress

Effects of Hydraulic Fracturing Fluid Chemistry on Shale Matrix Permeability

Micro- and Macroscale Consequences of Interactions between CO2 and Shale Rocks

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