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   Articles with "first arrival" as a keyword



Development of efficient and robust Eikonal solver variants for first-arrival seismic modeling

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recommendations! Published in 2020 at "Computational Geosciences"

DOI: 10.1007/s10596-020-10010-5

Abstract: We have developed and tested a new Eikonal first-arrival forward model scheme by combining a fast marching method (FMM) algorithm, an upwind Eikonal solver scheme first described by Sethian and Popovici in 1996, with a… read more here.

Keywords: eikonal solver; model; first arrival; fmm ... See more keywords

First arrival time picking for microseismic data based on DWSW algorithm

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recommendations! 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

A first arrival detection method for low SNR microseismic signal

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recommendations! Published in 2018 at "Acta Geophysica"

DOI: 10.1007/s11600-018-0193-3

Abstract: Most of the microseismic signals have low signal-to-noise ratio (SNR) due to the strong background noise, which makes it difficult to locate the first arrival time. Both accuracy and stability of conventional methods are poor… read more here.

Keywords: microseismic signal; snr microseismic; low snr; first arrival ... See more keywords

A hybrid method for calculating seismic wave first-arrival traveltimes in two-dimensional models with an irregular surface

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recommendations! Published in 2018 at "Journal of Applied Geophysics"

DOI: 10.1016/j.jappgeo.2018.05.011

Abstract: Abstract A hybrid method is developed for the calculation of seismic wave first-arrival traveltimes in two-dimensional models with an irregular free surface. The method is based on a combination of the classical eikonal equation (CEE)… read more here.

Keywords: wave first; surface; method; seismic wave ... See more keywords

Integration of seismic first arrival times to estimate water-air contact and initial water saturation

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recommendations! Published in 2017 at "Journal of Natural Gas Science and Engineering"

DOI: 10.1016/j.jngse.2017.05.011

Abstract: Abstract History matched models have helped reservoir engineers obtain a better understanding of the reservoir and optimize the future productions. Recent years, seismic data is more often to be integrated to improve the reservoir models,… read more here.

Keywords: seismic first; water saturation; arrival times; first arrival ... See more keywords

First Arrival Traveltime Picking Through 3-D U-Net

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recommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2021.3096572

Abstract: In seismic exploration, picking first arrival traveltimes is an important step toward the estimation of subsurface velocity model, which has the direct impact on the well placement. In this letter, we present a 3-D deep… read more here.

Keywords: traveltime picking; arrival traveltime; net; picking net ... See more keywords

Microseismic First-Arrival Picking Using Fine-Tuning Feature Pyramid Networks

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recommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2021.3107477

Abstract: Microseismic event picking is one of the key steps in seismic processing and imaging. Manually picking is a widely used way to pick the microseismic events, which is time-consuming. The standard short-term average/long-term average (STA/LTA)… read more here.

Keywords: microseismic first; fine tuning; model; first arrival ... See more keywords

Automatic First Arrival Time Identification Using Fuzzy C-Means and AIC

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

DOI: 10.1109/tgrs.2021.3121032

Abstract: Accurate first arrival picking plays a crucial role in microseismic data processing. However, it is challenging to guarantee satisfactory accuracy with conventional approaches when the signal-to-noise ratio (SNR) of data is low. This article proposes… read more here.

Keywords: time; automatic first; method; first arrival ... See more keywords

First-Arrival Picking for Out-of-Distribution Noisy Data: A Cost-Effective Transfer Learning Method With Tens of Samples

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recommendations! Published in 2024 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2024.3462935

Abstract: Data-driven methods for picking the first-arrival of seismic waves can encounter challenges with generalization when they are faced with out-of-distribution data that falls outside their training set. Transfer learning is a promising technique for boosting… read more here.

Keywords: method; transfer learning; distribution; transfer ... See more keywords

Automatic First Arrival Picking Based on Self-Similarity and Multicenter Fuzzy Clustering

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recommendations! Published in 2025 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2025.3538757

Abstract: Accurate arrival time picking of microseismic events is crucial for understanding subsurface processes and assessing associated risks. However, the low signal-to-noise ratio (SNR) inherent in field microseismic data poses significant challenges. To address the above… read more here.

Keywords: first arrival; multicenter fuzzy; arrival picking; similarity multicenter ... See more keywords

An Intelligent First-Arrival Picking Method of Microseismic Signals Based on the Small Sample Expansion

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recommendations! Published in 2025 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2025.3562813

Abstract: An accurate and efficient first-arrival picking method of microseismic signals is essential for improving the microseismic recording processing performance. However, the weak seismic magnitude and low signal-to-noise ratio (SNR) of microseismic signals make highly accurate… read more here.

Keywords: signals based; picking method; method microseismic; arrival picking ... See more keywords