Results 21 to 30 of about 8,189 (339)

A phase-field modeling approach of fracture propagation in poroelastic media [PDF]

Engineering Geology, 2018, 240: 189-203, 2019
This paper proposes a phase field model for fracture in poroelastic media. The porous medium is modeled based on the classical Biot poroelasticity theory and the fracture behavior is controlled by the phase field model. Moreover, the fracture propagation is driven by the elastic energy where the phase field is used as an interpolation function to ...
arxiv   +1 more source

Numerical simulation of zonal disintegration of surrounding rock in the deep‐buried chamber

Deep Underground Science and Engineering, Volume 1, Issue 2, Page 174-182, December 2022., 2022
Based on the finite difference software FLAC3D, the numerical simulation of cavern surrounding rock under different working conditions was carried out by using Bilinear Strain‐Softening Ubiquitous‐Joint Model (Subi). The effects of buried depth, cohesion and internal friction angle of surrounding rock on the discontinuous deformation are analyzed, and ...
Yukai Wang, Xiaoli Liu, Yanlin Xiong
wiley   +1 more source

Exploring the frontiers of deep underground sciences and engineering—China Yunlong Lake Laboratory is striving to be the best

Deep Underground Science and Engineering, Volume 1, Issue 2, Page 131-137, December 2022., 2022
General plan of the in‐situ experiment (WNS) base. Abstract This paper introduces the establishment of deep underground infrastructure for science and engineering research. First, the representative deep underground research laboratories and facilities in the world and their functions were summarized and reviewed.
Lihua Hu, Jianguo Wang, Ali Karrech, Xiaozhao Li, Peng Zhao, Lulu Liu   +5 more
wiley   +1 more source

Automatic and Manual Fracture-Lineament Identification on Digital Surface Models as Methods for Collecting Fracture Data on Outcrops: Case Study on Fractured Granite Outcrops, Bangka

Frontiers in Earth Science, 2020
Three-dimensional outcrop models, or Digital Surface Models (DSMs), have proved their capacity in many geoscience studies. Along with the advantage in the rapid acquisition, DSMs are capable of creating virtual models of fractured outcrops to be ...
Muhammad Edo Marshal Nurshal, Muhammad Edo Marshal Nurshal, Muhammad Suwongso Sadewo, Arif Hidayat, Wildan Nur Hamzah, Wildan Nur Hamzah, Benyamin Sapiie, Mirzam Abdurrachman, Alfend Rudyawan   +8 more
doaj   +1 more source

Structure and fracture characterization of the Jizan group: Implications for subsurface CO2 basalt mineralization

Frontiers in Earth Science, 2023
The coastal region of southwest Saudi Arabia contains a thick sequence of Late Oligocene basalts in the Jizan Group, which accumulated along the continental rift that preceded the opening of the Red Sea. These basalts are targeted for the disposal of CO2
Jakub Fedorik, Antoine Delaunay, Giacomo Losi, Yuri Panara, Yuri Panara, Niccolo Menegoni, Abdulkader M. Afifi, Serguey Arkadakskiy, Murtadha Al Malallah, Eric Oelkers, Sigurður R. Gislason, Zeyad Ahmed, Noushad Kunnummal   +12 more
doaj   +1 more source

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

Deep Underground Science and Engineering, Volume 1, Issue 2, Page 148-164, December 2022., 2022
We conducted a new approach of mine water‐deep geological storage, the results showed that the hydrogeological feasibility of Baotashan coarse sandstone (BCS) was impressive and useful for real project. The effective porosity of BCS aquifers ranged from 1.36% to 3.46% and the capacity of mine water geological storage was 0.455–1.266 Mm3 for 1 km2 in ...
Ge Chen, Yajun Sun, Zhimin Xu, Xin Li
wiley   +1 more source

Geomechanical Characteristics and Stimulation of Dibei Deep Tight Sandstone Reservoirs in the Kuqa Depression of Tarim Basin

Geofluids, 2023
Facing the problem of increased production of deep tight gas reservoirs, this study takes the Dibei gas reservoir in Tarim Basin as an example, carries out geomechanical research, and reveals the rock mechanical properties, in situ stress, and fracture ...
Ke Xu, Haijun Yang, Hui Zhang, Zhimin Wang, Lu Fang, Guoqing Yin, Haiying Wang   +6 more
doaj   +1 more source

Estimation of the Fracturing Parameters and Reservoir Permeability Using Diagnostic Fracturing Injection Test

Iraqi Geological Journal, 2023
The term "tight reservoir" is commonly used to refer to reservoirs with low permeability. Tight oil reservoirs have caused worry owing to its considerable influence upon oil output throughout the petroleum sector.
Hiba Hasan, Sameera Hamd-Allah
doaj   +1 more source

Exploration methods for granitic natural stones - Geological and topographical aspects from case studies in Finland [PDF]

Bulletin of the Geological Society of Finland, 2014
Regional and local geological constraints for location of natural stone deposits in glaciated terrains of southern and central Finland have been studied and applied to practical exploration for natural stone.
O. Selonen, C. Ehlers, H. Luodes, P. Härmä   +3 more
doaj   +1 more source

Multiscale simulation of injection-induced fracture slip and wing-crack propagation in poroelastic media [PDF]

, 2021
In fractured poroelastic media under high differential stress, the shearing of fractures and faults and the corresponding propagation of wing cracks can be induced by fluid injection. Focusing on low-pressure stimulation with fluid pressures below the minimum principal stress but above the threshold required to overcome the fracture's frictional ...
arxiv   +1 more source