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Core-scale heterogeneity and dual-permeability pore structure in the Barnett ShaleCronin, Michael Brett 02 February 2015 (has links)
I present a stratigraphically layered dual-permeability model composed of thin, alternating, high (~9.2 x 10⁻²⁰ m²) and low (~3.0 x 10⁻²² m²) permeability layers to explain pressure dissipation observed during pulse-decay permeability testing on an intact Barnett Shale core. I combine both layer parallel and layer perpendicular measurements to estimate layer permeability and layer porosity. Micro-computed x-ray tomography and scanning electron microscopy confirm the presence of alternating cm-scale layers of silty-claystone and organic-rich claystone. I interpret that the silty-claystone has a permeability of 9.2 x 10⁻²⁰ m² (92 NanoDarcies) and a porosity of 1.4% and that the organic-rich claystone has a permeability of 3.0 x 10⁻²² m² (0.3 NanoDarcies) and a porosity of 14%. A layered architecture explains the horizontal (k [subscript H] = 107 x 10⁻²¹ m²) to vertical (k [subscript V] = 2.3 x 10⁻²¹ m²) permeability anisotropy ratio observed in the Barnett Shale. These core-scale results suggest that spacing between high-permeability carrier beds can influence resource recovery in shales at the reservoir-scale. I also illustrate the characteristic pulse-decay behavior of core samples with multiple mutually-orthogonal fracture planes, ranging from a single planar fracture to the Warren and Root (1963) "sugar cube" model with three mutually-orthogonal fracture sets. By relating sub core-scale matrix heterogeneity to core-scale gas transport, this work is a step towards upscaling experimental permeability results to describe in-situ gas flow through matrix at the reservoir scale. / text
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Multiscale flow and transport in highly heterogeneous carbonatesZhang, Liying 28 August 2008 (has links)
Not available / text
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Characterization of transport properties in granitic rock fractures with skinsGarner, Terence Travis 28 August 2008 (has links)
Not available / text
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Characterization of transport properties in granitic rock fractures with skinsGarner, Terence Travis, 1975- 18 August 2011 (has links)
Not available / text
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Field permeability determinationsMcLoughlin, Kevin Joseph, 1943- January 1966 (has links)
No description available.
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Experimental Study on Rock Deformation and Permeability VariationDing, Jihui 16 December 2013 (has links)
The development of a petroleum reservoir would inevitably induce a rearrangement of the in-situ stress field. The rearrangement of the stress field would then bring about a deformation of the reservoir rock and a change of the permeability. This experimental study was carried out to investigate rock deformation and its impact on axial permeability. Triaxial compression tests were conducted on Berea sandstone, Indiana limestone, Westerly granite and tuff specimens. Axial permeability was continuously measured for Berea sandstone and Indiana limestone during triaxial compression tests. The axial permeability of fractured Westerly granite specimens was also measured during hydrostatic compression tests. Acoustic emission (AE) monitoring was performed to help improve the understanding of rock deformation. Results showed that Berea sandstone and Westerly granite were relatively brittle, while Indiana limestone and tuff were relatively ductile. Rock deformation altered pore structures and the change of pore structures considerably impacted fluid flow through rock. For porous Berea sandstone and Indiana limestone, the destruction of the pore structure by rock deformation led to a decrease in axial permeability. For tight Westerly granite, fractures created by rock deformation significantly improved the ease of fluid flow. Acoustic emission response was found to be strongly dependent on rock type. Brittle Berea sandstone and Westerly granite produced high AE rates during compression tests, while ductile Indiana limestone and tuff generated very low AE rates.
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Comparisons of three methods for measuring saturated hydraulic conductivity in the presence and absence of a water tableMostuffa, Salahaldeen A. January 1983 (has links)
No description available.
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Determination of surface areas of finely divided materials by the permeability methodMcAllister, Robert Allen 08 1900 (has links)
No description available.
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The permeability of intercellular junctions formed between animal cellsFinbow, M. E. January 1979 (has links)
No description available.
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Comparative effectiveness of CPF in providing chemical and physical durability to concreteWibowo, Antonius January 2000 (has links)
No description available.
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