Results 61 to 70 of about 26,237 (314)

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

The Central Western Caucasus at the Jurassic–Cretaceous Transition: A Synthesis with a Case Study

Journal of Marine Science and Engineering
The Caucasian Sea was among the vast tropical water masses that existed on Earth in the Mesozoic. The knowledge of Kimmeridgian–Hauterivian deposits from the central Western Caucasus can facilitate the understanding of the Caucasian paleogeography at the
Dmitry A. Ruban, Svetlana O. Zorina, Konstantin I. Nikashin, Rafael N. Muzafarov   +3 more
doaj   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

Volume Density and Longitudinal Wave Velocity Changes of the Ciezkowice and Krosno Flysch Sandstones under High Pressure and Temperature in the Triaxial Test Condition / Zmiany Gestosci Objetosciowej I Predkosci Fali Podłuznej Skał Fliszowych: Piaskowców Ciezkowickich I Krosnienskich Pod Wpływem Wysokiego Cisnienia I Temperatury W Warunkach Trójosiowego Sciskania

Archives of Civil Engineering, 2011
Gestosc objetosciowa skał oraz predkosc fal sprezystych sa stosowane do identyfikacji własciwosci i litologii skał na duzych, niedostepnych dla bezposrednich obserwacji głebokosciach.
Pinińska J., Dziedzic A.
doaj   +1 more source

Compressibility of sandstones /

, 1991
This book is a comprehensive treatment of the elastic volumetric response of sandstones to variations in stress. The theory and data presented apply to the deformations that occur, for example, due to withdrawal of fluid from a reservoir, or due to the ...
Zimmerman, Robert Wayne.
core  

Effective stress law for the permeability and pore volume change of clayey sandstones

, 2020
The experiments were conducted under hydrostatic loading at nominal rate of 1MPa/min. Berea and Boise are clayey sandstones. The detail for physical property of these two rock can be found in our paper with same title of this ...
Fanbao Meng, Xingfu Li, Wong, Teng-fong, Li, Xingfu, Patrick Baud, Baud, Patrick, Teng‐fong Wong, Meng, Fanbao, Wong, Teng‐fong   +8 more
core   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Dynamic response of sandstones with different water contents based on SHPB

工程科学学报, 2017
To study the changing law of rock mechanics under different water conditions and to ensure that the water content was the sole factor, sandstone was used as the experimental material.
CHU Fu-jiao, LIU Dun-wen, TAO Ming, PENG Huai-de   +3 more
doaj   +1 more source

Reservoir characteristics of high clay content and microporous tight litharenites in marine-continental transitional environments

Shiyou shiyan dizhi, 2020
The resource potentials for the exploration and development of tight sandstone gas, shale gas, and coalbed gas in marine-continental transitional environments are very attractive.
Zengqin LIU, Shaobin GUO
doaj   +1 more source