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Theory of Effective Stress in Soil and Rock and Implications for Fracturing Processes: A Review
The effective stress principle (ESP) plays a basic role in geology and engineering problems as it is involved in fundamental issues concerning strain and failure of rock and soil, as well as of other porous materials such as concrete, metal powders ...
Vincenzo Guerriero, Stefano Mazzoli
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Investigation of Stress Sensitivity of Shale Nanopores via a Nuclear Magnetic Resonance Method
Nuclear magnetic resonance (NMR) is widely used to characterize the pore structure of rock. The nanoscale pores and fractures are well developed in a shale gas reservoir.
Mingjun Chen +7 more
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Coalbed methane (CBM) reservoirs’ permeability is the result of dynamic variations influenced by tectonics, hydrology and the CBM production process. Taking samples from the southeastern Ordos Basin, China, the permeability evolution of bituminous coal ...
Yongkai Qiu +4 more
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Research on prediction methods of formation pore pressure based on machine learning
Formation pressure is the most fundamental data in oil and gas drilling and production; it has an important position in the entire cycle of oil and gas extraction.
Honglin Huang +8 more
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Experimental Analysis of Effective Stress Sensitivity of 3# Coal Seam Permeability in Xinjing Mine
The KDZS-II type coal body gas instantaneous desorption and seepage characteristic tester was used to analyze the effective stress sensitivity of 3# coal seam in Xinjing Mine under the gas pressure conditions of 0.31 MPa and 0.61 MPa.
XIE Yuhua, ZHAO Kun, LIU Jianbao, ZHANG Jianfeng, YANG Changyong
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Foam is usually used in soil conditioning of earth pressure balance shield tunnelling. The smooth muck discharge and chamber pressure transmission require foam-conditioned coarse-grained soils with suitable flowability to avoid face instability and ...
ZHONG Jiazheng 1, 2, WANG Shuying 1, 2, 3, FENG Zhiyao 1, 2, ZHU Hanbiao 1, 2
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Laboratory Study of Effective Stress Coefficient for Saturated Claystone
Claystone is potentially the main rock formation for the deep geological disposal of high-level radioactive nuclear waste. A major factor that affects the deformation of the host medium is effective stress.
Fanfan Li +6 more
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Performing stress‐sensitivity evaluation on a high‐temperature and high‐pressure gas reservoir is essential for correctly understanding the characteristics of physical property changes and reasonably designing the development scheme of a reservoir under ...
Yi‐Long Li +8 more
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Accurate determination of the effective stress coefficient is an important thing in the study of the effective stress of unsaturated soils. However, the existing effective stress coefficients have not well considered the effect of the microscopic ...
Lifeng ZENG +3 more
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Temperature Effect on Mohr–Coulomb’s Effective Strength Parameters of Paste Backfill
In-stope paste backfill monitoring at different mine sites showed anomalous increase in total stress during rest periods. One of the explanations according to a recent laboratory- model experiment was attributed to volumetric expansion caused by ...
Alsidqi Hasan, Wee Kiet Ting
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