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First arrival time picking for microseismic data based on DWSW algorithm

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1 Published in 2018 at "Journal of Seismology"

DOI: 10.1007/s10950-018-9735-z

Abstract: The first arrival time picking is a crucial step in microseismic data processing. When the signal-to-noise ratio (SNR) is low, however, it is difficult to get the first arrival time accurately with traditional methods. In… read more here.

Keywords: time; method; arrival time; dwsw ... See more keywords

Time Series Segmentation Clustering: A New Method for S-Phase Picking in Microseismic Data

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3 Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2021.3098809

Abstract: Phase picking is a critical step in the analysis of microseismic data. However, there is a lack of relevant methods for S-phase picking. In this letter, we pick the P-phase and extract the data around… read more here.

Keywords: microseismic data; time series; phase; method ... See more keywords

Automatic Microseismic Event Detection With Variance Fractal Dimension via Multitrace Envelope Energy Stacking

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1 Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2021.3138899

Abstract: Surface monitoring of microseismic monitoring events is generally challenging because microseismic data have a low signal-to-noise ratio (SNR). Traditional event-detection methods struggle to detect weak microseismic events. A variance fractal dimension (VFD) method for automatic… read more here.

Keywords: microseismic data; microseismic event; energy; detection ... See more keywords

A Reliable Online Dictionary Learning Denoising Strategy for Noisy Microseismic Data

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2 Published in 2023 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2023.3250457

Abstract: Improving the quality of microseismic recordings is a critical step in the microseismic data processing. We introduce a wavelet-weighted online dictionary learning (WWODL) denoising strategy for noisy microseismic recordings. We develop an adaptive parameters estimation… read more here.

Keywords: microseismic data; online dictionary; strategy noisy; noisy microseismic ... See more keywords

Characteristics of microseismic data recorded by distributed acoustic sensing systems in anisotropic mediaMicroseismic DAS in anisotropic media

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0 Published in 2020 at "Geophysics"

DOI: 10.1190/geo2019-0776.1

Abstract: Fiber-optic distributed acoustic sensing (DAS) cables are now used to monitor microseismicity during hydraulic-fracture stimulations of unconventional gas reservoirs. Unlike geophone arrays, DAS systems are sensitive to uniaxial strain or strain rate along the fiber… read more here.

Keywords: cable; distributed acoustic; characteristics microseismic; das systems ... See more keywords