Development of efficient and robust Eikonal solver variants for first-arrival seismic modeling
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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