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The AAPG/Datapages Combined Publications Database
Showing 499 Results. Searched 200,691 documents.
Deep learning seismic full-waveform inversion and transient EM joint inversion for near surface velocity modeling
Daniele Colombo, Ernesto Sandoval-Curiel, Ersan Turkoglu, Weichang Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... acoustic finite-difference modeling is performed with GeoInv3D (Pajot and Combre, 2014) where a minimum phase Ricker wavelet of 25 Hz peak frequency...
2022
Direct monitoring of fluid saturation using time-lapse full-waveform inversion
Amir Mardan, Bernard Giroux, Gabriel Fabien-Ouellet, Mohammad Reza Saberi
International Meeting for Applied Geoscience and Energy (IMAGE)
... by using 7 sources on the surface and placing receivers both on the surface and imaginary wells on both sides of the model. A Ricker wavelet...
2022
RNN-based seismic velocity model building: Improving generalization using hybrid training data
Hani Alzahrani, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
... by solving the 2D Helmholtz equation using a 15 Hz Ricker wavelet. Data were generated for 6 frequencies ranging from 1 Hz to 12 Hz in 2 Hz...
2022
A nodal discontinuous Galerkin method for wave propagation in coupled fluid-solid media
Ruiqi Li, Yijie Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... elements is 22654 and the minimum edge of the elements is 3.466 m. An moment tensor source placed in the fluid at location (250 m, 350 m) , using a Ricker...
2022
Temporal Resolution of Depositional Processes in the Gulf Coast Tertiary
John A. Lopez
Houston Geological Society Bulletin
... thickness assuming a Ricker wavelet given by equation (13) in Kallweit and Wood (1984). Log Resolution Logging resolution was taken as the optimal...
1991
Wave scattering by the formation velocity perturbation surrounding a fluid-filled borehole
Zhou-Tuo Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Therefore, we should conduct the inversion successively. For the convenience, we use a Ricker wavelet (e.g., Tang and Cheng, 2004) with the center...
2022
An immersed absorbing boundary condition for scalar wavefield modeling under topography
KeJi Chen, Hanming Chen, Hui Zhou
International Meeting for Applied Geoscience and Energy (IMAGE)
... interface. The Ricker wavelet with the main frequency of 20 Hz is used as the source to be excited under the surface. The sinusoidal surface model is used...
2022
Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method
Zeyu Zhao, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... 0.02 km in both directions. The Ricker wavelet with the peak frequency of 10 Hz is used to generate 92 shots gathers using time domain rapid expansion...
2022
Reflection waveform inversion assisted by full-wavefield imaging
Mikhail Davydenko, Eric Verschuur
International Meeting for Applied Geoscience and Energy (IMAGE)
... 200m and 400m. The layer also has a sharp density contrast. Hence, the response (modeled by an acoustic finite-difference algorithm using 10 Hz Ricker...
2022
Forward modeling for arbitrary irregular free-surface based on body-fitted grid
Erxiang Wei, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... （x-81) /11 ) （x-321) /11 ) function of z = − 150 × e( − . A + 150 × e( − 0 Ricker wavelet explosive source with a dominant frequency of 20 Hz...
2023
Elastic impedance parameterization and inversion for fracture quasi-weaknesses and quasi-Thomsen parameters in fractured reservoirs with monoclinic symmetry
Wei Xiang, Xingyao Yin, Kun Li, Zhengqian Ma
International Meeting for Applied Geoscience and Energy (IMAGE)
... by generating the convolution of the reflection coefficient calculated by Eq. (8) and a 30Hz Ricker wavelet, which is shown in Figure 3(a). Gaussian...
2023
The modeling and simulation of Scholte wave propagation at fluid-solid interface
Zhiliang Wang, Rong Huang, Guojie Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... s. The other parameters listed in Table 1. A point force is located at (2.408km, 1.568km), and the source term is a Ricker wavelet: f (t ) 5.76 f...
2023
Estimating subsurface geostatistical parameters from surface-based GPR reflection data using a deep-learning approach
Yu Liu, James Irving, Klaus Holliger
International Meeting for Applied Geoscience and Energy (IMAGE)
... location with a 100 MHz Ricker wavelet. It is important to note that this simple approach of generating synthetic GPR reflection images, which emulates...
2023
Deep learning based microearthquake location prediction at Newberry EGS using physics-informed synthetic dataset
Zi Xian Leong, Tieyuan Zhu
International Meeting for Applied Geoscience and Energy (IMAGE)
... gathers. We use a standard Ricker wavelet We expand on the standard multilayer perceptron (MLP) to instead directly predict the spatial location (x,y,z...
2023
Joint data and physics model driven full-waveform inversion using CMP gathers and well-logging data
Shuliang Wu, Jianhua Geng
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The Ricker wavelet with a dominate frequency of 8 Hz is high-pass filtered at 4 Hz as the source to simulate the seismic data. We select one velocity...
2023
Adaptive UMAP based multiple-frequency attribute blending and its application on hydrocarbon reservoir characterization
Zezhou Zhang, Naihao Liu, Yang Yang, Zhiguo Wang, Rongchang Liu, Jinghuai Gao
International Meeting for Applied Geoscience and Energy (IMAGE)
... synthetic data, which is generated by convolving the reflectivity model with a 35 Hz Ricker wavelet. There are 143 seismic traces in our synthetic model...
2023
Influence of node position uncertainty on FWI and Mirror-RTM
Felipe Capuzzo, Marco Cetale, Sergio Luiz da Silva, Roger Moreira, Felipe T. Costa, Ammir A. Karsou, Jorge Lopez
International Meeting for Applied Geoscience and Energy (IMAGE)
... was only allowed to update a maximum of 10% in each iteration. The source wavelet is a Ricker with a cutoff frequency of 10Hz. No multiscale strategy...
2023
JAX acceleration of implicit FWI and field data application
H. V. Nguyen, A. Sekar, K. Wang, T. Zhang, T. Nemeth, U. Albertin, M. Eaid, K. Nihei, E. Wang, K. Innanen
International Meeting for Applied Geoscience and Energy (IMAGE)
... was performed for a marine acquisition with sources and receivers in the water layer with Ricker and Ormsby source wavelets. To mimic field data...
2024
Low-rank representation for reflectivity model and its applications in least-squares migration
Jidong Yang, Jianping Huang, Hejun Zhu, George McMechan
International Meeting for Applied Geoscience and Energy (IMAGE)
... implemented by minimizing the weighted nuclear norm Ricker wavelet is used as the source time function. Visof reflectivity patch matrices...
2024
Conditional image prior for uncertainty quantification in full-waveform inversion
Lingyun Yang, Omar M. Saad, Tariq Alkhalifah, Guochen Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
...] to the reference one-hot vector [0, 1] (bottom row). in both directions. The source is given by a Ricker wavelet with a peak frequency of 6 Hz. The time step...
2024
Multipole borehole acoustics in the presence of an constraints elastic tool
Tim Geerits, Stefan Schimschal, Anna Swiatek
International Meeting for Applied Geoscience and Energy (IMAGE)
..., t; S with was a 4 kHz Ricker wavelet. We also analyzed the effects of eccentricity on induced mode contaminants (e.g., monopole Stoneley and dipole flexural...
2024
An improved Holo-Hilbert spectral analysis guided by fast matching pursuit
Chaohe Wang, Zhaoyun Zong
International Meeting for Applied Geoscience and Energy (IMAGE)
..., translating, and modulating a signal using the window function (Ricker or Morlet wavelet), we can obtain an over-complete dictionary. Equation (6) and (7...
2024
Stochastic inversion based on Von Karman random medium prior model
Longdong Liu, Baoli Wang, Ying Lin, Guangzhi Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... and . Where w t is the seismic wavelet. 1 d w t , and the 2 dt The autocorrelation function can be gotten by doing the Fourier inverse...
2024
Diffusion regularization for multi-parameter near-surface elastic full-waveform inversion
Mohammad Hasyim Taufik, Fu Wang, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
...rest spans 1.125 x 10 km2 with a receiver and source lateral sampling of 0.1 and 1 km, respectively. A ricker wavelet with a dominant frequency of 1...
2024
Interpretation of first-arrival times of borehole acoustic measurements acquired in high-angle wells using 3D eikonal numerical simulations
Feiyue Xia, Carlos Torres-Verdín
International Meeting for Applied Geoscience and Energy (IMAGE)
... (𝜏 𝜏 𝜏 ) are displayed for wavefields simulated via 3D FDTD. The center frequency of the Ricker wavelet is fs=10kHz. Red lines are wavefronts at specific...
2024