Results 1 to 10 of about 267,234 (181)
Mathematics, 2023 Amplitude-versus-angle (AVA) inversion for pre-stack seismic data is a key technology in oil and gas reservoir prediction. Conventional AVA inversion contains two main stages.
Ronghuo Dai, Jun Yang
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Amplitude Versus Angle (AVA) feature restoration in prestack gathers via dictionary learning. [PDF]
PLoS ONEWith the expansion of oil and gas exploration into deep and complex reservoirs, the prestack amplitude versus angle (AVA) inversion technique faces challenges due to amplitude attenuation and phase distortion caused by formation absorption effects, which
Yang Gao +5 more
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Intelligent optimization based prestack inversion method for high resolution estimation of elastic parameters [PDF]
Scientific ReportsSeismic inversion plays a vital role in constructing high-precision subsurface models for reservoir characterization, fault detection, tunnel engineering, and dynamic formation analysis.
Wei Zhang +6 more
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Nonlinear AVA Inversion Based on a Novel Quadratic Approximation for Fluid Discrimination
Geofluids, 2020 Fluid discrimination plays an important role in reservoir exploration and development. At present, the fluid factors used for fluid discrimination are estimated by linear AVA inversion methods based on the linear approximations of the Zoeppritz equations.
Lin Zhou +5 more
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Anesthesia isn't sleep: The neuronal dynamics of immobility in isoflurane-anesthetized C. elegans differ from the activity patterns of previously established sleep-like quiescent states. [PDF]
PLoS ONEBackgroundC. elegans possesses a precisely defined pattern of neuronal activation associated with its quiescent sleep-like state. As for higher-order creatures, this state includes the induction of atonia and immobility. In C.
Andrew S Chang +3 more
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Geostatistical rock physics AVA inversion [PDF]
Geophysical Journal International, 2018 Reservoir models are numerical representations of the subsurface petrophysical properties such as porosity, volume of minerals and fluid saturations. These are often derived from elastic models inferred from seismic inversion in a two-step approach: first, seismic reflection data are inverted for the elastic properties of interest (such as density, P ...
Leonardo Azevedo +2 more
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Prestack Seismic Inversion via Nonconvex L1-2 Regularization
Applied Sciences, 2021 Using seismic data, logging information, geological interpretation data, and petrophysical data, it is possible to estimate the stratigraphic texture and elastic parameters of a study area via a seismic inversion.
Wenliang Nie +4 more
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Monitoring of trace element content in tap water from Karachuny Reservoir, Kryvyi Rih city [PDF]
E3S Web of Conferences, 2020 Control of the trace element content in tap water is particularly important for large industrial regions. The estimation of Cd, Pb, Cu, As, Ni, Zn, Mn, Hg, Se and Co concentration in the tap water of Kryvyi Rih city (Karachuny Reservoir) was accomplished
Stoliarenko Viktoriia +2 more
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Contributions to Geophysics and Geodesy, 2022 The Late Messinian Abu Madi Formation represents the most prospective deep reservoir target in the Nile Delta. Hydrocarbon exploration in the Nile Delta over the last few decades has been targeted to understand the Abu Madi reservoir quality and ...
Nadia Abdel FATTAH +2 more
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Energies, 2020 Reservoir parameter estimation is one of the goals of amplitude-versus-angle (AVA) inversion and angle-domain common image gathers are the basis of AVA inversion.
Zhe Yan, Yonglong Yang, Shaoyong Liu
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