Results 21 to 30 of about 522,196 (302)
工程科学学报, 2015 The change of pore water pressure in saturated rocks was closely associated with its damage deformation. In order to study the precursory characteristics of pore water pressure before the damage of saturated rock, the triaxial compression test and ...
ZHANG Yue-zheng, JI Hong-guang
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Pore Water Pressure in Sand Bed under Oscillating Water Pressure [PDF]
, 1984 In this paper the theoretical method to analyse the pore water pressures in the sand bed under the oscillating water pressure is developed. In the former researchs the validity of the theoretical treatment for the one-dimensional problem has been ...
Maeno, Shiro, Nago, Hiroshi
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Real-Time Pore Pressure Detection: Indicators and Improved Methods
Geofluids, 2017 High uncertainties may exist in the predrill pore pressure prediction in new prospects and deepwater subsalt wells; therefore, real-time pore pressure detection is highly needed to reduce drilling risks.
Jincai Zhang, Shangxian Yin
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Acceleration of Debris Flow Due to Granular Effect
Frontiers in Earth Science, 2021 Pore water pressure has been recognized as an important factor to enhance the mobility of debris flow moving in channel of very gentle slope. The creation and dissipation of pore water pressure are associated with interaction between grains.
Taiqiang Yang +11 more
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Energies, 2023 The underground gas storage (UGS) in depleted sandstone reservoirs forms the largest proportion of the UGS market in China. Multiple cycles of natural gas injection and production in the sandstone cause the rapid increase and drawdown of pore pressure ...
Xiaosong Qiu +6 more
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Energy Exploration & Exploitation, 2021 To clarify the influence of pore pressure gradient on hydraulic fracture propagation, the stress distribution in and around the borehole is explained by theoretical analysis method in this paper.
Weiyong Lu, Changchun He
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Experimental Investigation of the Effect of Evenly Distributed Pore Pressure on Rock Damage
Lithosphere, 2022 The effect of pore pressure on rock damage is a core problem in underground engineering. In this paper, the pseudotriaxial hydromechanical coupling experiment system is utilized to carry out the physical model experiment of the pore pressure on the rock ...
Xinglong Zhao +3 more
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Using a novel approach to determine the pore pressure of West Qurna 15 oil well in South of Iraq
Journal of Engineering, 2020 Pore pressure means the pressure of the fluid filling the pore space of formations. When pore pressure is higher than hydrostatic pressure, it is named abnormal pore pressure or overpressure.
Sara Thaier Haider +2 more
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Yantu gongcheng xuebao, 2023 Under the state of chamber pressure, the pore pressure of conditioned soil will be generated, and it can balance the water pressure in front of the excavation to reduce the level of groundwater infiltration.
ZHAN Yongjie 1, 2, WANG Shuying 1, 2, YANG Xiuzhu 1, WANG Haibo 3
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Dynamic pore collapse in viscoplastic materials [PDF]
, 1993 Dynamic pore collapse in porous materials is studied by analyzing the finite deformation of an elastic/viscoplastic spherical shell under impulsive pressure loading.
Ravichandran, G., Tong, W.
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