Results 11 to 20 of about 74,096 (359)
Geology of the Rokko Tunnel with reference to fracture pattern
Journal of the Japan Society of Engineering Geology, 1968 The Rokko Tunnel built up in April 1967 is 2843m in length and combines Kobe with the Sanda basin in lesser distance. During its construction, geological survey with datailed mapping in scale of 1/100 was attempted and the results are summarized as follows:The wall of the tunnel consists of the quartz diorite, granite and rarely lithoidite.
Hiroshi Akimoto +2 more
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Geology and fracture system at Stripa. Technical information report No. 21 [PDF]
, 1979 The Stripa test site has been excavated in granitic rock between 338 m and 360 m below the ground surface, and is located under the north limb of an ENE-plunging synclinal structure. The granitic rocks, in the areas mapped, are of Archean age and are dominated by a reddish, medium-grained, massive monzogranite that shows varying degrees of deformation.
Olkiewicz, A. +3 more
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Application of Freezing Method in the Geology Disaster Treatment of Fault Fracture Zone
DEStech Transactions on Engineering and Technology Research, 2017 Fault rupture zone inrush of water and mud is the most serious geological disaster of the tunnel and underground engineering. The disaster has a direct threat to the progress of engineering and the safety of builders. The Yonglian tunnel appears to multiple inrush of water and mud disaster in the process of construction Geological environment and ...
Qingsong Zhang +3 more
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Confidence evaluation of fractures seismic detection in shale gas formations on WY23 Pad in Weirong [PDF]
Youqicang pingjia yu kaifa, 2023 Due to the inadequacy in the pre-assessment of natural fracture growth in shale, the exploration and development effect of Weirong shale gas field is seriously affected. It is imperative to enhance research on fracture prediction.
LI Jingchang, LU Ting, NIE Haikuan, FENG Dongjun, DU Wei, SUN Chuanxiang, LI Wangpeng
doaj +1 more source
Energies, 2023 Gas reservoir numerical simulation is an important method to optimize the development strategy of shale gas reservoirs which has been influenced by the multi-stage fracture.
Yihe Du +4 more
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Ture three-dimensional fracture simulation of geology-engineering integration in low permeability and tight reservoirs in southern of Ordos Basin [PDF]
E3S Web of Conferences, 2022 In view of the characteristics of the Mesozoic oil reservoirs in the southern Ordos block such as large buried depth, strong heterogeneity, unclear understanding of oil and gas distribution, and immature prediction technology for engineering construction
Li Zhigang +3 more
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Introduction: geology of fractured reservoirs
Journal of the Geological Society, 2020 The characterization of fractured reservoirs and fractured geothermal resources requires a thorough understanding of the geological processes involved during fracturing and the rheological properties of the host rock. The presence or absence of mechanical layering within the rock and the mode of failure substantially control the organization and ...
Paul A. Gillespie +4 more
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Advances in Mechanical Engineering, 2022 In the process of sublevel acidizing and fracturing, the non-uniform load on production casing is complex, and casing failure occurs frequently, which seriously affects the next step of production, stimulation, and underground safety of the oil and gas ...
Lian Zhanghua +5 more
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Integration of remote sensing and geographic information systems for geological fault detection on the island of Crete, Greece [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2019 Fracture systems are of great importance in the field of structural geology. Faults commonly afford easy passage to groundwater and fluids such as hydrothermal fluids and magmas or even contribute to earthquake hazard monitoring.
M. Elhag, D. Alshamsi
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Geosciences, 2023 This technical note illustrates a linear regression algorithm based on the Maximum Likelihood Estimation (MLE), with a related Excel spreadsheet and VBA program, adapted to the case of fracture aperture data sets in which sampling of the smallest values ...
Vincenzo Guerriero
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