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Showing 499 Results. Searched 200,685 documents.
Time-lapse FWI prediction of CO2 saturation and pore pressure
Qi Hu, Kristopher Innanen
International Meeting for Applied Geoscience and Energy (IMAGE)
... displacements) computed for the true model. Ricker wavelet with central frequency 15 Hz is used. Conclusions We proposed a complete rock physics model...
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
Facies-constrained elastic full-waveform inversion for tilted orthorhombic media
Ashish Kumar, Ilya Tsvankin
International Meeting for Applied Geoscience and Energy (IMAGE)
... offset is 3.6 km and maximum offsetto-depth ratio for the bottom of the model is about 2.6. The Ricker wavelet with a central frequency of 10 Hz...
2024
The reflected waves distributed on 3D9C seismic data from ISO media
Yuan Yuan Yue, Zhiwen Deng, Hong Cao, Qianggong Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the reflection coefficient, then is convolved with a 20Hz Ricker wavelet. The convolution results are shown in Figure 4. It can be seen that the position where...
2024
A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media
Long Wu, Yixian Xu, Shigang Xu
International Meeting for Applied Geoscience and Energy (IMAGE)
... m×1800 m×1800 m. The source signal is an 28 Hz Ricker wavelet. The Q model is generated from the velocity model using an empirical relation...
2024
Travel-time tomography for joint velocity and transducer location estimation
Edan Gofer, Raanan Dafni, Albert Shalumov, Ramon Axelrod, Moshe Oziel, Pinny Chaviv
International Meeting for Applied Geoscience and Energy (IMAGE)
...ves, 1996). The data is noise free and is modeled with a spatial grid step of 0.17mm and a time sample rate of 0.0175μs. The source wave...
2024
Application of acoustic anisotropic time-lapse full-waveform inversion at the Sleipner Field
Sea-Eun Park, Alexey Stovas, Hyeong-Geun Ji, Ju-Won Oh
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Figure 1). The model size is 10.6 km×1 km with 10 m grid spacing. We set the maximum recording time as 1.5 s, and the Ricker wavelet, whose dominant...
2024
Velocity model building from 3D surface seismic data at the Utah FORGE EGS site
Yun-Ha Jung, Nori Nakata, Sea-Eun Park, Ju-Won Oh
International Meeting for Applied Geoscience and Energy (IMAGE)
..., we continue velocity model building using 3D acoustic fullwaveform inversion. We set the maximum recording time as 2 s, and the Ricker wavelet, whose...
2024
Seismic amplitude variation with angle response of hydrogen-saturated rock: Implications on subsurface monitoring
Chao Li, Shuvajit Bhattacharya
International Meeting for Applied Geoscience and Energy (IMAGE)
... dramatically in the reservoir. Transferring the model into time domain and convolved by a 30 Hz Ricker wavelet, Figure 7 shows the corresponding profiles...
2024
Optimal survey design for full-waveform inversion via bi-level optimization
H. S. Aghamiry, S. Operto
International Meeting for Applied Geoscience and Energy (IMAGE)
... acquisition, we perform a full run of IR-WRI starting from a rough initial model (Fig. 4b). The source signature is a 4 Hz Ricker wavelet. We perform...
2024
FWI uncertainty analysis with Stein variational gradient descent
Haoyang Cen, Kaihang Guo, Diancheng Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... and a receiver spacing of 50 m. A ricker wavelet peaked at 10 Hz is used. Fifty initial particles are generated based on the reference FWI model...
2024
Diagenesis and pore pressure induced dim spots Advances on AVO analysis of high-impedance reservoirs
Antonio Pessoa, Mark Chapman, Giorgos Papageorgiou
International Meeting for Applied Geoscience and Energy (IMAGE)
... as a function of angles of incidence and convolved with a 15Hz Ricker wavelet. We chose to simulate an average frequency similar to that of the 3D seismic...
2024