Results 11 to 20 of about 12,661 (215)

Controls of fault geometry and thermal stress on fault slip modes: Implications for permeability enhancement and injection-induced seismicity

Petroleum Research, 2021
Fluid pressurization within the fault zone generates increasing pore pressure and stress change which is liable to create shear and/or brittle fractures within the reservoir volumes and subsequently generating earthquakes of varying magnitudes.
Dorcas S. Eyinla, Michael A. Oladunjoye
doaj   +1 more source

High‐Rate Fluid Injection Reduces the Nucleation Length of Laboratory Earthquakes on Critically Stressed Faults in Granite

Geophysical Research Letters, 2022
We conducted fluid injection experiments on cylindrical low‐permeability granite samples with a critically stressed sawcut fault at local injection rates of 0.2 and 0.8 mL/min and confining pressures of 31 and 61 MPa.
Yinlin Ji, Lei Wang, Hannes Hofmann, Grzegorz Kwiatek, Georg Dresen   +4 more
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Diagnosing injection-production system faults in the same well using the rough set-LVQ neural network.

PLoS ONE, 2023
This study proposed a reverse calculation model of the unique rod pump injection and production system structures in the same well to diagnose and resolve defects, after which dynamometer diagrams of the system production and injection pumps were drawn ...
Yi Fang Yin, Zunce Wang, Minzheng Jiang, Siyuan Chang   +3 more
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Novel Fault Injection Attack without Artificial Trigger

Applied Sciences, 2020
Theoretical process of fault injection attacks is defined as a process of recovering a secret key assuming that an attacker can inject faults into a specific targeted operation.
HanSeop Lim, JongHyeok Lee, Dong-Guk Han
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A Numerical Investigation of the Hazardous Injection Area of Induced Earthquake during Hydraulic Fracturing

Shock and Vibration, 2021
Hot dry rock (HDR) geothermal energy has many advantages, such as being renewable, clean, widely distributed, and without time and weather limitations. Hydraulic fracturing is usually needed for the exploitation of HDR geothermal energy.
Zhiyong Niu, Shiquan Wang, Hongrui Ma, Songbao Feng, Hengjie Luan, Yibin Yang   +5 more
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DEVELOPMENT OF A FAULT INJECTION TOOL & DATASET FOR VERIFICATION OF CAMERA BASED PERCEPTION IN ROBOTIC SYSTEMS

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022
Nowadays, camera-based perception is most popular topic in robotic systems. Verification of camera-based perception systems are crucial and difficult with current tools and methods.
Alim Kerem Erdoğmuş, Uğur Yayan
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Transition From Slow to Fast Injection‐Induced Slip of an Experimental Fault in Granite Promoted by Elevated Temperature

Geophysical Research Letters, 2022
The influence of elevated temperature on injection‐induced fault slip is poorly constrained. In this study, at steady‐state elevated temperatures, triaxial shear‐flow experiments on a sawcut fault in granite were conducted to simulate injection‐induced ...
Yinlin Ji, Hannes Hofmann, Ernest H. Rutter, Arno Zang   +3 more
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Evaluation of effectiveness of fault-tolerant techniques in a digital instrumentation and control system with a fault injection experiment

Nuclear Engineering and Technology, 2019
Recently, instrumentation and control (I&C) systems in nuclear power plants have undergone digitalization. Owing to the unique characteristics of digital I&C systems, the reliability analysis of digital systems has become an important element of ...
Man Cheol Kim, Jeongil Seo, Wondea Jung, Jong Gyun Choi, Hyun Gook Kang, Seung Jun Lee   +5 more
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A Numerical Investigation of Fault Slip Induced by Injection–Production Operations in Oilfields

Energies
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, Xueyan Jiang, Lihong Zhu, Jiyuan Lu, Lu Qiao, Tingting Gao, Tingting Zhang, Zichen Gu, Tianyu Chen, Xiaoyu Zhang   +9 more
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Three-dimensional coupled simulation study on the reactivation mechanism and stability of faults under different fluid injection rate schemes

Rock Mechanics Bulletin
The injection rate of fluid is a key engineering factor affecting the stability and reactivation potential of faults; however, the mechanism of injection-induced fault reactivation under the effect of multiple injection rates remains unclear.
Miao He, Qi Li, Xiaying Li
doaj   +1 more source