Geophysical and geochemical characterization reveals topography controls on critical zone structure in a low hilly region
Sign Up to like & getrecommendations! Published in 2022 at "Earth Surface Processes and Landforms"
DOI: 10.1002/esp.5424
Abstract: Characterizing the structure of the critical zone (CZ), which is often tens of metres deep, is challenging and crucial to understand earth surface processes. Existing findings on the effect of topography on CZ thickness focused… read more here.
Keywords: critical zone; structure; sandstone; topography ... See more keywords
Development of novel methods to predict the strength properties of thermally treated sandstone using statistical and soft-computing approach
Sign Up to like & getrecommendations! Published in 2017 at "Neural Computing and Applications"
DOI: 10.1007/s00521-017-3233-z
Abstract: The knowledge of thermally modified strength properties is crucial in processes such as underground coal gasification, disposal of radioactive wastes in deep geological reservoirs and restoration of fire-damaged structures. However, due to the unavailability of… read more here.
Keywords: novel methods; strength; methods predict; strength properties ... See more keywords
Gas Permeability and Porosity Evolution of a Porous Sandstone Under Repeated Loading and Unloading Conditions
Sign Up to like & getrecommendations! Published in 2017 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-017-1215-1
Abstract: The permeability and porosity of a porous sandstone under cyclic loading–unloading conditions are measured using an integrated permeability and porosity measurement system. Mineral content analysis of the rock is performed. The rock contains open microcracks… read more here.
Keywords: porosity; unloading conditions; permeability; permeability porosity ... See more keywords
3D Numerical Reconstruction of Porous Sandstone Using Improved Simulated Annealing Algorithms
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1451-z
Abstract: In this paper, a 3D numerical reconstruction method is proposed based on improved simulated annealing algorithms and limited morphological information from experiments. Firstly, X-ray micro-CT experimental tests are applied to obtain the CT images and… read more here.
Keywords: improved simulated; numerical reconstruction; sandstone; simulated annealing ... See more keywords
Modeling $$\hbox {CO}_2$$CO2-Induced Alterations in Mt. Simon Sandstone via Nanomechanics
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1655-2
Abstract: The objective of this work is to formulate a novel and physics-based nanomechanics framework to connect geochemical reactions in host rock to the resulting morphological changes at the microscopic lengthscale and to the resulting geomechanical… read more here.
Keywords: modeling hbox; sandstone; simon sandstone; hbox co2 ... See more keywords
Influence of Super-Critical CO2 on the Strength and Fracture Behavior of Brine-Saturated Sandstone Specimens
Sign Up to like & getrecommendations! Published in 2019 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-019-01933-2
Abstract: The mechanical behavior of rock is one of the most important parameters to evaluate the potential for geological carbon dioxide (CO2) sequestration (GCS); therefore, the study of rock strength evolution and fracture behavior after CO2… read more here.
Keywords: strength; fracture; brine; co2 ... See more keywords
Influence of freeze-thaw cycles on the degradation of sandstone after loading and unloading
Sign Up to like & getrecommendations! Published in 2019 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-019-01634-8
Abstract: The physical and mechanical properties of rocks in cold regions are strongly affected by temperature fluctuations and stress states. In this study, the deterioration of sandstone subjected to freeze-thaw (F-T) cycles and different stress states… read more here.
Keywords: thaw cycles; freeze thaw; loading unloading; sandstone ... See more keywords
Silane Treatment of 3D-Printed Sandstone Models for Improved Spontaneous Imbibition of Water
Sign Up to like & getrecommendations! Published in 2018 at "Transport in Porous Media"
DOI: 10.1007/s11242-018-1134-y
Abstract: Due to the natural heterogeneity of hydrocarbon reservoirs, accurate modeling and simulation of geomaterials can lead to sophisticated problems when multiple variables are either unknown or assumed. Additive manufacturing or 3D printing has been shown… read more here.
Keywords: water; spontaneous imbibition; sandstone; printed sandstone ... See more keywords
Understanding hydraulic fracture propagation behavior in tight sandstone–coal interbedded formations: an experimental investigation
Sign Up to like & getrecommendations! Published in 2019 at "Petroleum Science"
DOI: 10.1007/s12182-018-0297-z
Abstract: Whether hydraulic fractures could connect multiple gas zones in the vertical plane is the key to fracturing treatment to jointly exploit coalbed methane and tight sandstone gas through integrative hydraulic fracturing in tight sandstone–coal interbedded… read more here.
Keywords: propagation; sandstone coal; fracture; tight sandstone ... See more keywords
Investigations on Creep Behavior and Fractal Derivative Constitutive Model of Sandstone under Different Drying-Wetting Cycles
Sign Up to like & getrecommendations! Published in 2021 at "KSCE Journal of Civil Engineering"
DOI: 10.1007/s12205-021-0083-0
Abstract: Sandstone has been regarded as an optimal medium for underground gas storage (UGS). To better understand effects of drying-wetting (D-W) cycles on creep behavior of sandstone, comprehensive experimental investigations including uniaxial compression test (UCT) and… read more here.
Keywords: wetting cycles; creep behavior; drying wetting; sandstone ... See more keywords
Changes in surface roughness of sandstone after heating and cooling cycles
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-05295-w
Abstract: The surface roughness of rock directly affects its strength, deformation, and seepage characteristics. Understanding the change of rock surface roughness under the heating and cooling cycles is of great significance for evaluating the damage degree… read more here.
Keywords: heating cooling; cooling cycles; surface roughness; sandstone ... See more keywords