Results 131 to 140 of about 105,423 (180)
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Experimental investigation of main controls to methane adsorption in clay-rich rocks
Applied Geochemistry, 2012Abstract In this study a series of CH 4 adsorption experiments on clay-rich rocks were conducted at 35 °C, 50 °C and 65 °C and at CH 4 pressure up to 15 MPa under dry conditions. The clay-dominated rock samples used are fresh samples from quarries and mines.
Liming Ji +4 more
semanticscholar +4 more sources
Influence of salt (NaCl) on hydric and hygric dilatation of clay-rich rocks
Journal of Cultural Heritage, 2022Blen Taye, Heather Viles, Hong Zhang
semanticscholar +4 more sources
Numerical modeling of multifrequency complex dielectric permittivity dispersion of clay-rich rocks
GEOPHYSICS, 2021Dielectric permittivity measurements in sedimentary rocks are dominated by mineralogy, the volumetric concentration and spatial distribution of solids and fluids, and interfacial polarization. Conventional interpretation models oversimplify these factors, leading to uncertainties in estimates of formation properties such as hydrocarbon reserves ...
Artur Posenato Garcia, Zoya Heidari
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New Physical Model to Study Tunnels in Squeezing Clay-Rich Rocks
Geotechnical Testing Journal, 2021ABSTRACT Squeezing ground conditions in tunnels are often associated with rock mineralogy, strength, ductility, excavation sequence, and the magnitude of in situ stresses. Numerous methodologies and empirical correlations have been proposed in the past to determine the level of ground squeezing conditions in tunnels, but most of them are
Ketan Arora +2 more
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Rock-physics templates for clay-rich source rocks
GEOPHYSICS, 2015Shale source rocks are composed of various minerals, mainly smectite and illite, depending on the burial depth, and they can be described as transversely isotropic media. The “pore space” may contain kerogen, water, oil, and gas determined by the in situ conditions.
José M. Carcione, Per Avseth
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Rock-physics analysis of clay-rich source rocks on the Norwegian Shelf
The Leading Edge, 2015Rock-physics trends and properties of clay-rich source rocks are investigated in selected wells in the North Sea and Norwegian Sea. Properties can vary significantly because of burial compaction, composition, diagenesis, organic richness, and maturation. The many competing effects can be difficult to disentangle in traditional rock-
Per Avseth, José M. Carcione
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Rock Physics Template Analysis of Norwegian Shelf Clay-rich Source Rocks
Proceedings, 2015In this study we investigate the rock physics properties of Draupne/Spekk Fm organic rich shales offshore Norway using rock physics templates for clay-rich source rocks (Carcione and Avseth, 2015). We attempt to understand the complex geologic processes of organic rich shales, and how these processes control the rock physics properties and seismic ...
P. Avseth, J. Carcione
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Disposal of Radioactive and Hazardous Wastes into Clay-Rich Rocks
1991Because of its unique containment properties, shale is believed to be an extremely desirable host rock for the disposal of high-level radioactive wastes. The principal advantage of utilizing shale as a disposal medium for high-level wastes is its very low permeability to the flow of groundwater.
Thomas F. Lomenick, J. D. Kasprowicz
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Selective adsorption of CO2/CH4 mixture on clay-rich shale using molecular simulations
Journal of CO2 Utilization, 2020Shale rocks comprise of a lager proportion of clay minerals; shale gas potentially adsorbs on the clay minerals due to its large specific surface area.
Yueliang Liu, Jian Hou
semanticscholar +3 more sources
SPWLA 66th Annual Symposium Transactions
Clay minerals are laminated structures with numerous chemically active sites and high surface area to volume ratio which favors CO2 adsorption and storage. However, CO2 adsorption contributes to mechanical degradation of clay minerals. Eventually, clay minerals become vulnerable regions for mechanical failure in clay-rich rocks, affecting both ...
Jamil El-Masry +3 more
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Clay minerals are laminated structures with numerous chemically active sites and high surface area to volume ratio which favors CO2 adsorption and storage. However, CO2 adsorption contributes to mechanical degradation of clay minerals. Eventually, clay minerals become vulnerable regions for mechanical failure in clay-rich rocks, affecting both ...
Jamil El-Masry +3 more
openaire +2 more sources