Results 101 to 110 of about 5,383,519 (211)

MA_W-Net-Based Dual-Output Method for Microseismic Localization in Strong Noise Environments

Applied Sciences
With the continuous depletion of conventional oil and gas reservoir resources, the beginning of exploration and development of unconventional oil and gas reservoir resources has led to the rapid development of microseismic monitoring technology ...
Qiang Li, Fengjiao Zhang, Liguo Han
doaj   +1 more source

Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time

Shock and Vibration, 2019
An experiment designed to simulate coal during excavation was conducted. Microseismic signals of coal under vibration conditions during excavation and subsequent waiting time of the coal roadway at different excavation speeds were collected and analyzed.
Qifei Wang, Chengwu Li, Pingyang Lyu, Yuechao Zhao, Dihao Ai, Beijing Xie   +5 more
doaj   +1 more source

Multicomponent microseismic data denoising by 3D shearlet transform

, 2018
The low-magnitude microseismic signals generated by fracture initiation are generally buried in strong background noise, which complicates their interpretation. Thus, noise suppression is a significant step. We have developed an effective multicomponent,
Mirko van der Baan, Chao Zhang
core   +1 more source

Research on Microseismic Signal Denoising Method Based on LMD–SVD

工程科学与技术, 2019
As the real and three-dimension monitoring method, microseismic monitoring can be utilized to evaluate engineering rockmass stability and offer early security warning to people.
Linlu DONG, Ruochen JIANG, Nuwen XU, Bo QIAN   +3 more
doaj  

A Synthetic Solution for Identification and Extraction of the Effective Microseismic Wave Component Using Decomposition on Time, Frequency, and Wavelet Coefficient Domains

Shock and Vibration, 2017
To reduce noise components from original microseismic waves, a comprehensive fine signal processing approach using the integrated decomposition analysis of the wave duration, frequency spectrum, and wavelet coefficient domain was developed and ...
Mingwei Zhang, Qingbin Meng, Shengdong Liu, Hideki Shimada   +3 more
doaj   +1 more source

Detection and Denoising of Microseismic Events Using Time–Frequency Representation and Tensor Decomposition

IEEE Access, 2018
Reliable detection and recovery of a microseismic event in large volume of passive monitoring data is usually a challenging task due to the low signal-to-noise ratio environment.
Naveed Iqbal, Entao Liu, James H. McClellan, Abdullatif Al-Shuhail, Sanlinn I. Kaka, Azzedine Zerguine   +5 more
doaj   +1 more source

Microseismic Signal Characterization and Numerical Simulation of Concrete Beam Subjected to Three-Point Bending Fracture

J. Sensors, 2015
To study the generation mechanism and failure mode of cracks in mass concrete, microseismic monitoring is conducted on the fracture processes of the three-point bending roller compacted concrete (RCC) beam of Guanyinyan hydropower station.
N. Xu, F. Dai, C. Sha, Y. Lei, Biao Li
semanticscholar   +1 more source

Microseismic Monitoring System Establishment and its Application to Xinzhangzi Coal Mine

, 2011
Microseismic monitoring technology is the important method for safety monitoring of coal mine. The Xinzhuangzi coal mine is high gas and outburst mine, in order to ensure safety in process of mining and tunneling, the microseismic monitoring system is ...
Xiao Jing Feng, Dong Duan, Chun An Tang
core   +1 more source

CAE Neural Network and Reverse-Time Localization Imaging Method for Picking of Downhole Fracturing Microseismic Signal

Effective surface-based monitoring of microseismic signals generated by hydraulic fracturing in drilling is of significant importance to increase oil and gas production.
Tingting Lin, Wei Wang, Chaoqun Shi
core   +1 more source

WSNs Microseismic Signal Subsection Compression Algorithm Based on Compressed Sensing

, 2015
For wireless network microseismic monitoring and the problems of low compression ratio and high energy consumption of communication, this paper proposes a segmentation compression algorithm according to the characteristics of the microseismic signals and
Zhouzhou Liu, Fubao Wang
semanticscholar   +1 more source