Results 41 to 50 of about 7,682 (206)

Seismic imaging of hydraulically-stimulated fractures: A numerical study of the effect of the source mechanism [PDF]

, 2012
We present a numerical study of seismic imaging of hydraulically stimulated fractures using a single source from an adjacent fracturing-process. The source is either a point force generated from the perforation of the casing of the well or a double ...
Aki K., Deng F., Marcinkovich C., Song F., Warpinski N., Warpinski N., Wu R.-S.   +6 more
core   +1 more source

Using microseismic data recorded at the Weyburn CCS-EOR site to assess the likelihood of induced seismic activity [PDF]

, 2016
Since 2000, CO2 has been successfully injected for the purposes of both enhanced oil recovery (EOR) and carbon capture and storage (CCS) at the Weyburn oilfield.
Verdon, James
core   +2 more sources

Microseismic Monitoring - Methods and Interpretation [PDF]

ASEG Extended Abstracts, 2013
SUMMARY Microseismic monitoring is attracting great interest due to the application of passive seismic to shale play completion activities and the successful expansion of the method from downhole to surface and near-surface acquisition geometries. Fundamental to this application is the science behind the interpretations: The inherent capabilities and ...
openaire   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Microseismic Data-Direct Velocity Modeling Method Based on a Modified Attention U-Net Architecture

Applied Sciences, 2023
In microseismic monitoring, the reconstruction of a reliable velocity model is essential for precise seismic source localization and subsurface imaging.
Yixiu Zhou, Liguo Han, Pan Zhang, Jingwen Zeng, Xujia Shang, Wensha Huang   +5 more
doaj   +1 more source

Rock falls impacting railway tracks. Detection analysis through an artificial intelligence camera prototype [PDF]

, 2017
During the last few years, several approaches have been proposed to improve early warning systems for managing geological risk due to landslides, where important infrastructures (such as railways, highways, pipelines, and aqueducts) are exposed elements.
Fantini, Andrea, Fiorucci, Matteo, Martino, Salvatore   +2 more
core   +3 more sources

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

A method for predicting the time series of microseismic events in coal mines based on modal decomposition and deep learning

Meitan xuebao
Microseismic monitoring data plays a crucial role in predicting and warning dynamic hazards such as coal mine rockburst. Utilizing historical microseismic monitoring data to forecast the evolution characteristics of future microseismic events is an ...
Changkun QIN, Wusheng ZHAO, Haibin JIA, Weiji GAO, Yuchuan CHEN, Wanquan YU, Jizhong LIANG, Weizhong CHEN   +7 more
doaj   +1 more source

An improved method for hydrofracture induced microseismic event detection and phase picking [PDF]

, 2010
The ability to detect small microearthquakes and identify their P and S phase arrivals is a key issue in hydrofracture downhole monitoring because of the low signal-to-noise ratios. We apply an array-based waveform correlation approach (matched filter)
Ay, Erkan, Kuleli, Huseyin Sadi, Song, Fuxian, Toksoz, M. Nafi, Zhang, Haijiang   +4 more
core   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source