Results 171 to 180 of about 208,504 (261)
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, 2020
Measuring the evolution of pore structures is the most straightforward approach to assessing frost damage in porous rocks. Systematic and fine measurement of pore structures is critical to the interpretation of frost damage mechanisms.
H. Jia +4 more
semanticscholar +1 more source
Measuring the evolution of pore structures is the most straightforward approach to assessing frost damage in porous rocks. Systematic and fine measurement of pore structures is critical to the interpretation of frost damage mechanisms.
H. Jia +4 more
semanticscholar +1 more source
Sandstones and Sandstone Reservoirs
2010About 50% of all petroleum reservoirs are sandstones; outside the Middle East, carbonate reservoirs are less common and the percentage is even higher. The most important reservoir properties are porosity and permeability, but pore geometry and wetting properties of the mineral surfaces may also influence petroleum production.
Knut Bjørlykke, Jens Jahren
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Fracture behavior and damage mechanisms of sandstone subjected to wetting-drying cycles
Engineering Fracture Mechanics, 2020Rocks are usually subjected to cyclic wetting-drying due to the periodical changes in moist condition. To investigate the effect of wetting-drying cycles on the fracture behavior of sandstone, notched semi-circular bending tests were performed on ...
Xin Cai +4 more
semanticscholar +1 more source
, 2020
Variations of the mechanical properties and the pore structures of rocks after high-temperature treatment play a significant role in ensuring the operation of underground coal gasification and prevent the pollution of groundwater.
Min Li, Deming Wang, Z. Shao
semanticscholar +1 more source
Variations of the mechanical properties and the pore structures of rocks after high-temperature treatment play a significant role in ensuring the operation of underground coal gasification and prevent the pollution of groundwater.
Min Li, Deming Wang, Z. Shao
semanticscholar +1 more source
Engineering Fracture Mechanics, 2021
A constitutive model for damage is proposed to describe the deformation and strength characteristics of sandstone under the coupled effects of wetting-drying cycles and cyclic loading.
Z. Shi, Jiangteng Li, Yuan Zhao
semanticscholar +1 more source
A constitutive model for damage is proposed to describe the deformation and strength characteristics of sandstone under the coupled effects of wetting-drying cycles and cyclic loading.
Z. Shi, Jiangteng Li, Yuan Zhao
semanticscholar +1 more source
Physical Simulation of Hydraulic Fracturing of Large-Sized Tight Sandstone Outcrops
, 2020Hydraulic fracturing is an indispensable technology in developing tight oil and gas resources. However, the development of tight oil and gas is not consistently satisfactory. Further understanding of hydraulic fracturing of tight sandstone is required,
Tiankui Guo +6 more
semanticscholar +1 more source
, 2020
Sufficient bonding at concrete–rock interfaces is an important prerequisite when designing supports using concrete or shotcrete. However, the bonding between concrete and rock is often affected by low temperatures in cold regions.
Yan-jun Shen +4 more
semanticscholar +1 more source
Sufficient bonding at concrete–rock interfaces is an important prerequisite when designing supports using concrete or shotcrete. However, the bonding between concrete and rock is often affected by low temperatures in cold regions.
Yan-jun Shen +4 more
semanticscholar +1 more source
Engineering Geology, 2019
Salt weathering has considerable effects, and it has recently become the subject of interest among researchers and engineers, especially in terms of sandstone heritage buildings and sandstone monuments.
Qiang Sun, Yuliang Zhang
exaly +2 more sources
Salt weathering has considerable effects, and it has recently become the subject of interest among researchers and engineers, especially in terms of sandstone heritage buildings and sandstone monuments.
Qiang Sun, Yuliang Zhang
exaly +2 more sources
PARTICLE TRANSPORT IN SANDSTONES
Proceedings of SPE Annual Fall Technical Conference and Exhibition, 1977Abstract Particle transport within the Berea, Noxie and Cleveland sandstones having mean pore sizes of 10, 15 and 30 microns, respectively, was studied by injection of aqueous suspensions of sand particles having mean particle sizes of 4, 6 and 7 microns.
E.C. Donaldson, B.A. Baker, H.B. Carroll
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International Journal of Rock Mechanics And Mining Sciences, 2020
In deep underground coal mining, engineering activities are performed within anisotropic in-situ stress fields due to engineering disturbances and tectonic stress.
Jun Lu +5 more
semanticscholar +1 more source
In deep underground coal mining, engineering activities are performed within anisotropic in-situ stress fields due to engineering disturbances and tectonic stress.
Jun Lu +5 more
semanticscholar +1 more source