Results 41 to 50 of about 9,242 (223)

Expert-based development of a standard in CO2 sequestration monitoring technology [PDF]

, 2014
Bureau of Economic ...
Hovorka, S. D., Mickler, P. J., Nicot, J. -P., Sava, D., Sun, A. Y., Yang, C., Zeidouni, M.   +6 more
core   +1 more source

Smart Prediction of Rockburst Risks Using Microseismic Data and K-Nearest Neighbor Classification

GeoHazards
Effective mitigation of geotechnical risk and safety management of underground mine requires accurate estimation of rockburst damage potential. The inherent complexity of the rockburst phenomena due to nonlinear, high dimensional, and interdependent ...
Mahmood Ahmad, Zia Ullah, Sabahat Hussan, Abdullah Alzlfawi, Rohayu Che Omar, Shay Haq, Feezan Ahmad, Muhammad Naveed Khalil   +7 more
doaj   +1 more source

A Bayesian method for microseismic source inversion [PDF]

, 2016
Earthquake source inversion is highly dependent on location determination and velocity models. Uncertainties in both the model parameters and the observations need to be rigorously incorporated into an inversion approach.
Christie, PAF, Pugh, DJ, White, RS
core   +2 more sources

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

An Effective Denoising Method Based on Cumulative Distribution Function Thresholding and its Application in the Microseismic Signal of a Metal Mine With High Sampling Rate (6 kHz)

Frontiers in Earth Science, 2022
Microseismic events can be used to analyze the risk of tunnel collapse, rock burst, and other mine hazards in space and time. In practice, the artificial activities and other signals at the mining site can seriously interfere with the microseismic ...
Da Zhang, Da Zhang, Da Zhang, Zhiyi Zeng, Zhiyi Zeng, Zhiyi Zeng, Yaqian Shi, Yaqian Shi, Yaqian Shi, Ying Chang, Ying Chang, Ying Chang, Rui Dai, Rui Dai, Rui Dai, Hu Ji, Hu Ji, Hu Ji, Peng Han, Peng Han, Peng Han   +20 more
doaj   +1 more source

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

Modeling of Induced Hydraulically Fractured Wells in Shale Reservoirs Using Branched Fractals [PDF]

, 2013
Imperial Users ...
Al-Obaidy, Rawan, Al-Obaidy, Rawan
core  

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

Microseismic joint location and anisotropic velocity inversion for hydraulic fracturing in a tight Bakken reservoir [PDF]

, 2014
To improve the accuracy of microseismic event locations, we developed a new inversion method with double-difference constraints for determining the hypocenters and the anisotropic velocity model for unconventional reservoirs.
Castellanos F., Chang Li, Dreger D., Junlun Li, Keith Katahara, Levenberg K., M. Nafi Toksöz, Scott A. Morton, Ted Dohmen   +8 more
core   +1 more source

Microseismicity data for hydrofracture experiment

, 2020
Microseismicity locations in a local coordinate system in the plane of the fracture. Each of the files VascoEtAl_JGR_2020.*minutes.dat represents the seismicity during a 10 minute increment measured from the start of injection. The file VascoEtAl_JGR_2012.times.moments.xy contains the event moment magnitudes as a function of time since the start of ...
openaire   +1 more source