Results 101 to 110 of about 813,636 (245)

Poromechanical Modeling and Numerical Simulation of Hydraulic Fracture Propagation. [PDF]

ACS Omega, 2022
Zhang X, Cao Y, Wang L, Xiaohui G.
europepmc   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Analysis of Pressure and Tip Stress in Hydraulic Fracture under Unstable Fluid Injection Condition

Shiyou jixie, 2018
To understand the pressure and tip stress change in hydraulic fracture during unstable fluid injection, the calculation model of fluctuating pressure in wellbore under unstable fluid injection condition was established using fluid mechanics theory.
Tong Shaokai, Gao Deli
doaj  

An Innovative Method to Analyze the Hydraulic Fracture Reopening Pressure of Hot Dry Rock. [PDF]

Materials (Basel), 2023
Zhuang DD, Yin TB, Zhang ZX, Aladejare A, Wu Y, Qiao Y.   +5 more
europepmc   +1 more source

Evaluation of Pervaporation and Nanofiltration Membranes for Water Recovery From Thermo‐Responsive Draw Solution

Chemie Ingenieur Technik, EarlyView.
Integrating thermo‐responsive draw solutions with suitable water‐recovery technologies could enable more efficient hybrid desalination. This study compares pervaporation and nanofiltration, revealing key trade‐offs between water productivity and polymer retention and providing guidance for future FO‐based brine treatment systems.
Nadin Al‐Jariry, Malwin Uthleb, Ibrahim M. A. ElSherbiny, Hannes Richter, Liang Yu, Frank Lipnizki, Josefine Enman, Annelie Hedström, Marcus Weyd, Jonas Hedlund   +9 more
wiley   +1 more source

Numerical simulation of interface dip angle on hydraulic fracture propagation path in composite coal rock

Journal of Applied Science and Engineering
For deep coalbed methane (CBM) exploitation, it is very important to control hydraulic fractures in coal seam to avoid the decrease of fracturing energy caused by crossing coal-rock interface.
Dongjie Jiang, Fan Zhang, Rui Guo, Junjie Guo, Ji He, Wei Han, Yongming Song, Zidong Zhao   +7 more
doaj   +1 more source

Time-Dependent Effect of Seepage Force on Initiation of Hydraulic Fracture around a Vertical Wellbore. [PDF]

Materials (Basel), 2023
Rim H, Chen Y, Tokgo J, Du X, Li Y, Wang S.   +5 more
europepmc   +1 more source

5.

, 1990
1
Proc. Fracture and
core  

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Failure Mode of the Water-filled Fractures under Hydraulic Pressure in Karst Tunnels

Open Geosciences, 2017
Water-filled fractures continue to grow after the excavation of karst tunnels, and the hydraulic pressure in these fractures changes along with such growth.
Dong Xin, Lu Hao, Huang Houxu, Hao Yiqing, Xia Yuanpu   +4 more
doaj   +1 more source