Results 31 to 40 of about 7,682 (206)

Uncertainty in surface microseismic monitoring [PDF]

open access: yesASEG Extended Abstracts, 2013
Uncertainty in a migration based approach to surface and near surface microseismic monitoring occurs in two ways: uncertainty in the validity of detected events and uncertainty in the estimated position of the event. Synthetic modeling and comparison to case studies show that sign-to-noise-ratio is a key indicator of both types of the uncertainties. In
Michael Thornton   +2 more
openaire   +1 more source

Automatic Events Recognition in Low SNR Microseismic Signals of Coal Mine Based on Wavelet Scattering Transform and SVM

open access: yesEnergies, 2022
The technology of microseismic monitoring, the first step of which is event recognition, provides an effective method for giving early warning of dynamic disasters in coal mines, especially mining water hazards, while signals with a low signal-to-noise ...
Xin Fan   +5 more
doaj   +1 more source

Comparison of geomechanical deformation induced by megatonne-scale CO2 storage at Sleipner, Weyburn, and In Salah [PDF]

open access: yes, 2013
Geological storage of CO2 that has been captured at large, point source emitters represents a key potential method for reduction of anthropogenic greenhouse gas emissions. However, this technology will only be viable if it can be guaranteed that injected
Bissell, Rob C.   +5 more
core   +1 more source

Anisotropy in Fracking: A Percolation Model for Observed Microseismicity

open access: yes, 2014
Hydraulic fracturing (fracking) using high pressures and a low viscosity fluid allow the extraction of large quantiles of oil and gas from very low permeability shale formations.
Norris, J. Quinn   +2 more
core   +1 more source

Genetic Programming-Based Prediction Model for Microseismic Data

open access: yesGeofluids, 2022
Microseismic monitoring is a rock breakdown monitoring technology, and it has become a major technical tool for underground disaster warning and prevention.
Man Wang   +5 more
doaj   +1 more source

Application of CT inversion monitoring and early warning technology in microseismic anomaly area

open access: yesGong-kuang zidonghua, 2021
In order to solve the problems that microseismic monitoring can only reflect the danger of the area where the microseisms are located, and CT inversion monitoring cannot reflect the current danger level of the working face in time, taking the 3105 ...
LI Yunsheng1   +4 more
doaj   +1 more source

Multi-parameter monitoring of a solution mining cavity collapse : first insight of precursors [PDF]

open access: yes, 2011
International audienceIn order to improve our understanding of the large-scale ground failure phenomena caused by old underground mining works, a solution mine was instrumented in 2004 prior to its collapse as part of the mining scheme.
Al Heib   +24 more
core   +4 more sources

Real time identification of microseismic events based on ridge regression improved normative variable analysis

open access: yesGong-kuang zidonghua
The identification of microseismic events is the foundation of microseismic monitoring in coal mines. Most existing microseismic monitoring technologies are developed based on the variation law of single physical quantities, which can easily lead to ...
CHENG Jian   +4 more
doaj   +1 more source

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

open access: yes, 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.   +8 more
core   +1 more source

Machine Learning Based Identification of Microseismic Signals Using Characteristic Parameters

open access: yesSensors, 2021
Microseismic monitoring system is one of the effective means to monitor ground stress in deep mines. The accuracy and speed of microseismic signal identification directly affect the stability analysis in rock engineering.
Kang Peng   +3 more
doaj   +1 more source

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