Results 41 to 50 of about 111,641 (296)

Numerical investigation of the effect of fluid pressurization rate on laboratory-scale injection-induced fault slip

open access: yesScientific Reports, 2023
The effect of normal stress variations on fault frictional strength has been extensively characterized in laboratory experiments and modelling studies based on a rate-and-state-dependent fault friction formalism.
Gergő András Hutka   +5 more
doaj   +1 more source

Single-Phase Fault Line Selection in Distribution Network Based on Signal Injection Method

open access: yesIEEE Access, 2021
The distribution network with small current grounding mode can ensure high power supply reliability, but it is difficult to locate single-phase grounding fault line. Most of the faults in distribution network are single-phase to ground fault.
Lin Niu, Guiqing Wu, Zhangsheng Xu
doaj   +1 more source

Self-induced seismicity due to fluid circulation along faults [PDF]

open access: yes, 2013
International audienceIn this article, we develop a system of equations describing fluid migration, fault rheology, fault thickness evolution and shear rupture during a seismic cycle, triggered either by tectonic loading or by fluid injection.
Aochi, Hideo   +4 more
core   +2 more sources

A Numerical Investigation of Fault Slip Induced by Injection–Production Operations in Oilfields

open access: yesEnergies
During oilfield injection and production operations, fluid injection and withdrawal can significantly alter the stress state around faults, potentially triggering fault reactivation and even seismic events, which has become a focal issue in both industry
Xianbao Zheng   +9 more
doaj   +1 more source

FEM Simulation of Fault Reactivation Induced with Hydraulic Fracturing in the Shangluo Region of Sichuan Province

open access: yesEnergies
Hydraulic fracturing operations possess the capacity to induce the reactivation of faults, increasing the risk of fault slip and seismic activity. In this study, a coupled poroelastic model is established to characterize the distribution and movement of ...
Yujie He, Yanyan Li
doaj   +1 more source

Light-Weight Techniques for Improving the Controllability and Efficiency of ISA-Level Fault Injection Tools [PDF]

open access: yes, 2017
ISA-level fault injection, i.e. the injection of bit-flip faults in Instruction Set Architecture (ISA) registers and main memory words, is widely used for studying the impact of transient and intermittent hardware faults.
Johansson, Roger   +2 more
core   +1 more source

Signal Injection as a Fault Detection Technique [PDF]

open access: yesSensors, 2011
Double frequency tests are used for evaluating stator windings and analyzing the temperature. Likewise, signal injection on induction machines is used on sensorless motor control fields to find out the rotor position. Motor Current Signature Analysis (MCSA), which focuses on the spectral analysis of stator current, is the most widely used method for ...
Cusidó Roura, Jordi   +4 more
openaire   +5 more sources

A method for analyzing the performance aspects of the fault-tolerance mechanisms in FDDI [PDF]

open access: yes, 1992
The ability of error recovery mechanisms to make the Fiber Distributed Data Interface (FDDI) satisfy real-time performance constraints in the presence of errors is analyzed.
Haverkort, Boudewijn R.   +2 more
core   +3 more sources

Interdependent effects of fluid injection parameters on triggered aseismic slip and seismicity

open access: yesScientific Reports, 2022
In the context of fluid-induced seismicity, various injection parameters have been shown to affect fault behaviour differently, although existing studies about their effects sometimes show contradictory results.
Riddhi Mandal, Semechah K. Y. Lui
doaj   +1 more source

Evaluation of Faults Reactivation Tenacity in One of the Low-Pressure SW Iranian Carbonate Reservoirs: An IOR Viewpoint [PDF]

open access: yesJournal of Petroleum Science and Technology, 2020
In case of a decrease in reservoir pressure, injection projects are inevitable that the desired production rate is maintained. Moreover, one of the key issues in injection operations is optimum injection pressure determination to prevent fault ...
Mohsen Ezati   +4 more
doaj   +1 more source

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