Results 61 to 70 of about 4,586 (215)

Research on the Laws of Destructive Patterns and Control Measures of Overlying Rock in High‐Efficiency Large‐Scale Mining Faces

Energy Science &Engineering, EarlyView.
With the advancement of coal mining technology driving the development of working faces toward increased mining heights and extended lengths, the enlargement of face dimensions has led to expanded overlying strata failure zones and intensified ground pressure manifestations. Consequently, traditional methods for determining hydraulic support resistance
Chen Gong, Peilin Gong, Kang Yi, Kaijie Duan, Lizhu Liu, Peng Li   +5 more
wiley   +1 more source

Denoising Method for Microseismic Signals with Convolutional Neural Network Based on Transfer Learning

International Journal of Computational Intelligence Systems, 2023
Microseismic signals contain various information for oil and gas developing. Increasing the signal-to-noise ratio of microseismic signals can successfully improve the effectiveness of oil and gas resource exploration.
Xuegui Li, Shuo Feng, Yuantao Guo, Hanyang Li, Yingjie Zhou   +4 more
doaj   +1 more source

Geological Storage of CO2 and H2: A Bibliometric Synthesis of General and Laboratory‐Scale Research Evolution

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Underground gas storage is a cornerstone technology for addressing climate change and advancing the clean energy transition. By managing greenhouse gas emissions and enhancing energy system resilience, it supports global sustainability goals.
Sara Roces, Jhon Caicedo‐Potosí, Timea Kovács, Berta Ordóñez‐Casado, Sergio Llana‐Fúnez, Edgar Berrezueta   +5 more
wiley   +1 more source

Time difference of arrival estimation of microseismic signals based on alpha-stable distribution [PDF]

Nonlinear Processes in Geophysics, 2018
Microseismic signals are generally considered to follow the Gauss distribution. A comparison of the dynamic characteristics of sample variance and the symmetry of microseismic signals with the signals which follow α-stable distribution reveals that ...
R.-S. Jia, R.-S. Jia, Y. Gong, Y. Gong, Y.-J. Peng, Y.-J. Peng, H.-M. Sun, H.-M. Sun, X.-L. Zhang, X.-L. Zhang, X.-M. Lu, X.-M. Lu   +11 more
doaj   +1 more source

Hydraulic drive mechanism Patent [PDF]

, 1967
Hydraulic drive mechanism for leveling isolation ...
Tsutsumi, K.
core   +1 more source

Monitoring rock freezing and thawing by novel geoelectrical and acoustic techniques [PDF]

, 2016
Automated monitoring of freeze-thaw cycles and fracture propagation in mountain rockwalls is 23 needed to provide early warning about rockfall hazards. Conventional geoelectrical methods 24 such as electrical resistivity tomography (ERT) are limited by ...
Cane, Tim, Krautblatter, Michael, Kuras, Oliver, Murton, Julian B, Schober, Sandra, Tschofen, Dominique, Uhlemann, Sebastian, Watson, Phil   +7 more
core   +1 more source

The von Neumann Stability Analysis of the Fixed‐Stress Schemes in Poroelastodynamics

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 4, Page 1939-1951, March 2026.
ABSTRACT We investigate splitting schemes based on the fixed‐stress sequential approach for poroelastodynamic problems. To assess numerical stability, we perform the von Neumann stability analysis on several fixed‐stress schemes for poroelastodynamics, including staggered, stabilized, and iterative methods. Our analysis reveals that while the staggered
Jihoon Kim, Sanghyun Lee, Mary F. Wheeler   +2 more
wiley   +1 more source

Full-waveform Based Microseismic Event Detection and Signal Enhancement: The Subspace Approach [PDF]

, 2013
Microseismic monitoring has proven to be an invaluable tool for optimizing hydraulic fracturing stimulations and monitoring reservoir changes. The signal to noise ratio (SNR) of the recorded microseismic data varies enormously from one dataset to another,
Kuleli, Huseyin Sadi, Song, Fuxian, Toksoz, M. Nafi, Warpinski, Norm R.   +3 more
core  

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

Tide‐Modulated Ocean‐to‐Earth Energy Conversion Quantified With Coastal Fiber Sensing

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Quantifying how incident ocean waves transfer energy into seismic surface waves along the nearshore is essential for understanding coastal hazards and Earth–ocean coupling, yet time‐resolved in situ estimates have been scarce. Here we use a beach‐deployed distributed acoustic sensing array co‐located with an ocean‐bottom node to directly ...
Justin Yen‐Ting Ko, Kun‐Chi Ho, Chun‐Hung Lin, Hsin‐Hua Huang, Ho‐Han Hsu, Chen‐Fen Huang, Hao Kuo‐Chen, Hou‐Sheng Cheng, Yao Hsu, En‐Shi Wu, Hsi‐An Chen, Yu‐Fang Ma, Hung‐Yi Wu, Po‐Yin Lin, Yu‐Hsian Chen, Wei‐Jong Tien, Bo‐Yu Siao, Hui‐Yu Wu   +17 more
wiley   +1 more source