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Geomechanics and Geophysics for Geo-Energy and Geo-Resources

Subject Areas: Economic Geology
Publisher: Springer International Publishing - Springer Journals
ISSN: 2363-8419
SJR: 24

Open Access

Journal Article

Evolution characteristics of fracture volume and acoustic emission entropy of monzogranite under cyclic loading

Liu, Liyuan; Zhang, Zhou; Wang, Tao; Zhi, Sheng; Wang, Jiong

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00737-1

The volume evolution behavior of rock fissures and the characteristics of acoustic emission under cyclic loading are critical for rock stability analysis. To study the volume change behavior of monzogranite fissures and the characteristics of acoustic emission signals under cyclic loading, we...
Open Access

Journal Article

Assessment of lake-level variations to decipher geological controlling factors and depositional architecture of Lake Fuxian, Yunnan Plateau: preliminary insights from geophysical data

Ashraf, Umar; Zhang, Hucai; Anees, Aqsa; Zhang, Xiaonan; Duan, Lizeng

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00777-7

Lake Fuxian is one of the deepest tectonic plateau freshwater lakes in the southeastern Tibetan Plateau, China. However, questions such as how old the lake is, how deep the total sedimentary thickness sequences are, and what landscape of the lake basin settings and geological structures are...
Open Access

Journal Article

Integrated sand management: modeling of sand erosion in a mature oil field in Malaysia

Mohammadian, Erfan; Haron, Amir Syakib; Jafari, Mehdi; Liu, Bo; Azdarpour, Amin; Ostadhassan, Mehdi

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-023-00723-z

Sand production can lead to various problems, including erosion in production flow lines that may lead to total production loss for extended periods and costly workover operations. The extent of erosive damage is determined by many factors, among which the flow and sand rates are the most...
Open Access

Journal Article

Optimal HDR exploitation siting of gravity heat pipe geothermal systems via reservoir simulation

Zhou, Chunwei; Wang, Yaqiong; Liu, Gang; Liao, Shengming

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00764-y

Gravity heat pipe system has previously been proven as an environmental and efficient technology in exploiting hot dry rock. However, it is unclear what geothermal reservoir siting is more favorable for the system’s heat extraction performance. Herein, we analyzed the influences of geothermal...
Open Access

Journal Article

A novel method for imitating true-triaxial stress path with conventional triaxial apparatus

Li, Xuefeng; Ma, Zhigang

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00781-x

The stress paths of the cylindrical specimen in the p–q stress space by controlling the ratio of the axial and the radial loading is guaranteed to be consistent with the cuboid specimen, a novel method for imitating true-triaxial stress path by conventional triaxial apparatus was presented. Under...
Open Access

Journal Article

A modified model for calculating crack tip opening displacement (CTOD) considering fracture process zone (FPZ) in rock

Qiao, Yang; Zhang, Zong-Xian; Zhou, Jun

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00779-5

A new CTOD calculation method is investigated in this study, considering the FPZ and the effective Young’s modulus. The calculated CTOD values from four theoretical models are compared with the measured CTOD values from the three-point beam experiments, and the differences between them are...
Open Access

Journal Article

Effects of local thermal non-equilibrium on hydraulic stimulation efficiency of enhanced geothermal systems

Fan, Zhiqiang; Zhao, Jiamin; Wang, Dayong; Yue, Feng; Wu, Ziyan; Xue, Ronggang

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00752-2

Motivated by hydraulic stimulation of enhanced geothermal systems, the present paper investigates the coupled thermo-hydro-mechanical response of a geothermal well imbedded in a thermoporoelastic medium, subjected to a non-isothermal fluid flux and convective cooling on the borehole surface. Our...
Open Access

Journal Article

Effect of natural fractures on mechanical properties and fracture patterns of shale at microscopic scale: an example from the Lower Cambrian Niutitang formation in Qianbei region

Wu, Zhong-Hu; Yang, Chao; Zuo, Yu-Jun; Lou, Yi-Li; Song, Huai-Lei; Cui, Heng-Tao; Tang, Mo-Tian

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00743-3

In order to explore the influence of natural fractures on the mechanical properties and failure modes of shale at the micro scale, uniaxial compression numerical experiments were conducted on the shale of the Niutang Formation in northern Guizhou with different natural fracture angles using a...
Open Access

Journal Article

Performance prediction of roadheaders used in coal mines from the needle penetration index and the schmidt hammer value

Rostami, Masoud; Kahraman, Sair; Dibavar, Behnaz; Fener, Mustafa

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-023-00725-x

Coal mine galleries and construction tunnels are commonly excavated using roadheaders. Estimating the performance of roadheaders is crucial for planning and cost estimation when planning tunnel or tunnel projects. The aim of this study is to derive generalized performance prediction models...
Open Access

Journal Article

Mechanisms and experimental study of directional thermal shock fracture of granite under bidirectional horizontal loading

Zhang, Chao; Feng, Zijun; Mi, Chen; Chen, Zhengnan; Geng, Haojian; Shen, Chenguang

2024 Geomechanics and Geophysics for Geo-Energy and Geo-Resources

doi:10.1007/s40948-024-00778-6

The study of the mechanism of thermal shock directional fracture of rocks under bidirectional horizontal stress is important for the application of directional thermal shock fracture technology. With the engineering background of the thick igneous roof overlying the coal seam, we conducted high...

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