Results 251 to 260 of about 75,520 (349)

Study on hydraulic fracturing prevention and control of rock burst in roof of deep extra-thick coal seam roadway group. [PDF]

Sci Rep
Lv H, Cheng Z, Xie F, Pan J, Liu F.
europepmc   +1 more source

Predictive Values of Preoperative Compound Muscle Action Potential Amplitude for Surgical Outcomes in Idiopathic Ulnar Neuropathy at the Elbow

Muscle &Nerve, EarlyView.
ABSTRACT Introductions/Aims Despite numerous studies on ulnar neuropathy at the elbow (UNE), the predictive value of preoperative compound muscle action potential (CMAP) amplitude for postoperative intrinsic function remains unclear. This study aimed to evaluate the predictive values of preoperative CMAP amplitude for surgical outcomes in idiopathic ...
Jae‐Yong Cho, Hyeong‐Jun Rhyu, Hyun‐Kyo Kim, Hee‐Soo Kim, Won‐Taek Oh, Il‐Hyun Koh, Yun‐Rak Choi   +6 more
wiley   +1 more source

Application of Endothermic Fluids to Lower the Breakdown Pressure of Unconventional Reservoirs: Implications for Hydraulic Fracturing. [PDF]

ACS Omega
Khan F, Mahmoud M, Raza A, AlTammar MJ, Patil S, Murtaza M, Kamal MS.   +6 more
europepmc   +1 more source

Numerical Modeling of the Recession and Closure of Planar Hydraulic Fractures: Contact‐Based Versus Asymptotic‐Informed Schemes

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT We compare two algorithms to simulate the propagation, arrest, recession, and closure of a planar hydraulic fracture, focusing on their ability to capture the physical processes governing fracture recession and closure. The first algorithm is based on a fixed grid with contact detection during recession, while the second is based on a moving ...
Mohsen Talebkeikhah, Andreas Möri, Anthony Peirce, Emmanuel Detournay, Brice Lecampion   +4 more
wiley   +1 more source

Pressure Analysis of Vertical-Wells with the Hydraulic Fracturing Assisted Water Injection in Low-Permeability Hydrogen and Carbon Reservoirs. [PDF]

ACS Omega
Yu Z, Liu S, Tang J, Zhu B, Dong S, Du J, Wu Z.   +6 more
europepmc   +1 more source

Impact of Geomechanics Model Simplifications on Assessing Flow and Transport in 3D Fracture Networks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Changes in subsurface stress conditions induce fracture aperture changes, altering the hydraulic properties of fractured rocks. Due to the high computational cost of full 3D geomechanical modeling, simplified models are usually adopted, using two main simplifications, namely (i) calculating local stresses on a fracture by projecting far‐field ...
Nicholas Izuchukwu Osuji, Chuanyin Jiang, Auli Niemi, Chin‐Fu Tsang, Qinghua Lei   +4 more
wiley   +1 more source

Comparison and evaluation of overcoring and hydraulic fracturing stress measurements. [PDF]

Sci Rep
Li P, Cai M, Miao S, Li Y, Sun L, Wang J, Gorjian M.   +6 more
europepmc   +1 more source

Does hydraulic-fracturing theory work in jointed rock masses

, 1983
H.D. Murphy, Hans Keppler, Zora Dash
openalex   +1 more source

Effects of perforation schemes and non-Darcy flow on hydraulically-fractured gas well performances.

, 2000
Kôzô Satô, Hideaki Takeda
openalex   +2 more sources

Data‐Driven Detection of Internal Erosion Initiation in Gap‐Graded Soils: Combining Particle‐Scale CFD‐DEM Simulation With 3D Convolutional Autoencoder

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Internal erosion in gap‐graded soils poses significant risks to water‐retaining structures such as earth dams. However, its underlying mechanisms at the particle scale remain poorly understood. This study couples the discrete element method (DEM) with computational fluid dynamics (CFD) to simulate internal erosion in gap‐graded soil assemblies
Jie Qi, Negin Yousefpour, Guillermo A. Narsilio, Mehdi Pouragha   +3 more
wiley   +1 more source