Hydraulic fractures often turn or branch, interacting with preexisting discontinuities in the rock mass (e.g., natural defects). The criteria for fracture penetration deflection are typically based on situ stress, and angle strength of discontinuities. However, hydraulic experiments carbonate rocks (Naoi et al., 2020, https://doi.org/10.1093/gji/ggaa183), small scale analyses show that deflecte...

The intersection behavior of hydraulic fractures and single natural has been studied in detail; however, fractured reservoirs, are numerous interlaced the multiple occurs during fracturing process. This is more complex there a lack research on this topic at present. In study, numerical simulation model interaction between series was established, main factors that affect formation scale fracture...

Despite the wide application of hydraulic fracturing in enhanced geothermal system (EGS) development and unconventional hydrocarbon production, our understanding many factors affecting propagation fractures has relied on circumstantial evidence. This is partly due to scarcity direct observations subsurface. The EGS Collab project attempts address these issues context research by performing inte...

Hydraulic fracturing of coalbed methane wells has been widely practised as an effective method to increase drainage efficiency in low-permeability, low-pressure and low-saturated coal seams. To investigate hydraulic fracture performance associated seismic response coal, experiments were carried out on two cubic blocks containing a host natural fractures using true triaxial rock testing machine ...

Background: Thoracolumbar spinal fractures include a range of injuries of various severities from simple apophysealfractures to neurological injury and complex fractures associated with vertebral dislocation. The treatment ofthoracolumbar fractures is challenging, especially due to the difficulty of evaluating the posterior ligamentous complex(PLC). The purpose of this study w...

  Background: Humerus fractures include 5% to 8% of total fractures. Non-union and delayed union of GT (GT) fractures is uncommon; however they present a challenge to the orthopedic surgeons. Significant controversy surrounds optimal treatment of neglected fractures. The purpose of this article was to perform a comparative study to evaluate the outcomes of open reduction and internal fixatio...

Background:  Little is known about trends and predictors of hardware related infection following open reduction and internal fixation (ORIF) of extremity fractures, one of the major causes of failure following ORIF. The present study was designed and conducted to determine trends and predictors of infection-related hardware removal following ORIF of extremities using a nationally representative...

background: mal::::union:::: is the most common complication following distal radius fractures. aim of this study was to evaluate the results of distal radius corrective osteotomy and plate fixation by dorsal approach in the mal::::union::::. methods: in this retrospective study, 14 patients with neglected distal radius mal::::union:::: from 2005 to 2011 were studied. all patients were treated ...