Automated hyper-parameter optimization for deep learning framework to simulate boundary conditions for wave propagation

Harpreet Kaur, Sergey Fomel, Nam Pham

International Meeting for Applied Geoscience and Energy (IMAGE)

... a low-rank extrapolation operator (Fomel et al., 2013) with a 20-Hz Ricker wavelet and a time step of 2 ms. A blind test slices is shown in Figure 3b...

Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration

Tim Geerits, Stefan Schimschal, Anna Swiatek

International Meeting for Applied Geoscience and Energy (IMAGE)

... the above results we have used an 8 kHz Ricker wavelet. The waveforms display the acoustic pressure in arbitrary units and have been computed Cf. Eq.(1...

Viscoacoustic wave propagation: Spectral-element simulations with a novel GSLS-type wave equation

Yu Chen, Bin He, Hejun Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... method. Initially, we examine the effects of attenuation on waveforms using a homogeneous model. A Ricker wavelet with a dominant frequency of 20 Hz...

ABSTRACT: Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology; #90007 (2002)

Marcus L. Countiss

Search and Discovery.com

... directly from it. The operation is entirely mathematical with no wavelet estimation or other interpretive input applied. The primary requirement...

Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey

Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove

AAPG Bulletin

... are then calculated along the ray path, and these coefficients are convoluted by a Ricker wavelet. This method is fast and correctly images inclined reflectors...

Fine characterization technique and its application to Neogene composite channel sand bodies in Bohai oilfield

Shengqiang Zhang, Zhijun Zhang, Yu He, Xun Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., the zero-phase Ricker wavelet with dominant frequency of 30Hz was selected for forward modeling. Figure 3b shows the seismic records obtained...

Abstract: Spectral Analysis in Stratigraphic Interpretation, by Yihua Cai; #90200 (2014)

Search and Discovery.com

Seismic reflectivity inversion via a regularized deep image prior

Hongling Chen, Mauricio D. Sacchi, Jinghuai Gao

International Meeting for Applied Geoscience and Energy (IMAGE)

... Ricker wavelet and a reflectivity model. We also added random noise that represents an SNR = 10dB. The reflectivity was extracted from the Marmousi II...

Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)

Yicheng Zhou, Yang Cui, Sherif Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

... m/s (Figure 2a). There is a surface explosive seismic source with a 30Hz dominant frequency Ricker wavelet is located at 800-meter offset...

A prior regularized 3D full-waveform inversion using 2D generative diffusion models

Fu Wang, Tariq Alkhalifah, Xinquan Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... are uniformly placed on the surface. The time sampling is 2 ms. The peak frequency of the Ricker wavelet is 8Hz. The total seismic recording is 3s. Then we...

Phase Decomposition for Predicting Carbonate Reservoir Properties

Umberto Barbato

Unconventional Resources Technology Conference (URTEC)

... isolates seismic facies that are obscured by interference from adjacent reflections. For thin layers with a zero-phase wavelet, the -90° phase highlights...

-- no title --

Ehsan, Athar

Search and Discovery.com

... VGFWI wave equation to those computed by the convention FWI method. A single shot ejecting a ricker wavelet, dominant frequency of 10.0Hz was placed...

Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)

Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji

Search and Discovery.com

... shot ejecting a ricker wavelet, dominant frequency of 10.0Hz was placed at the middle of the cube. Snapshots at different time intervals were recorded...

Seismic Exploration for Stratigraphic Traps: Geophysical Exploration Methods

Paul L. Lyons, M. B. Dobrin

AAPG Special Volumes

... without altering the relative arrival times of the wavelet centers. A contraction to 0.8 of the input breadth is realized, and Ricker stated...

The Integration of Geophysical, Geological and Petrophysical Data: A Case Study in North West Java, Indonesia

M. Koswara, J. Negre, L. Hendrata

Southeast Asia Petroleum Exploration Society (SEAPEX)

... be in the form of GEOGRAM* (Synthetic Seismogram) or VSP (Vertical Seismic Profile) processed data, have to be reconciled through a wavelet residual...

Elastic-AdjointNet: A physics-guided deep autoencoder to overcome crosstalk effects in multiparameter full-waveform inversion

Arnab Dhara, Mrinal Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... in multiparameter full waveform inversion. The grid size of the velocity model is 150x294 with a grid interval of 10 m. A Ricker wavelet with a peak...

Echo phone for direct attenuation indication

Lu Liu, Tong Fei, Fuhao Qin, Yi Luo

International Meeting for Applied Geoscience and Energy (IMAGE)

..., which may represent the rocks saturated with water and gas, respectively. We use a Ricker wavelet with a peak frequency of 10 Hz to generate 300...

Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative

Ao Cai, Colin A. Zelt

International Meeting for Applied Geoscience and Energy (IMAGE)

... is the dominant wavelength of the seismic wave. The anomaly center is the origin of the coordinates. The numerical simulations (Figure 1) use a Ricker wavelet...

Determining Coal Distribution Based on Integrated Geological and Geophysical Study to Estimate Coal Bed Methane Resources in the Tarakan Formation: Case Study Kuncring Area

Dini Andriani, Erlangga Wibisono, Hizbina Khanaif, Ratna Johan Tri Pratiwi, Widi Atmoko

Indonesian Petroleum Association

... and wavelet minimum phases extracted from ricker 20Hz. A good correlation was obtained when matching up between coal zones from log data to seismic...

An MT data inversion method constrained by seismic texture

Hongyu Zhou, Rui Guo, Maokun Li, Fan Yang, Shengheng Xu, Aria Abubakar

International Meeting for Applied Geoscience and Energy (IMAGE)

... are corrupted with 5% Gaussian noise. The simulated post-stack data is generated by convolving the impedance layer with a 8Hz ricker wavelet. The ground...

Decoupled approximation of qP- and qSV-wave in attenuated TI media

Rong Huang, Zhiliang Wang, Guojie Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... in simulations, the time step is 1ms, the spatial step is 12.5m, and a Ricker wavelet with the frequency of 30Hz is placed in the model’s center as the source...

Predicting the lithology distribution of the coal seam roof using seismic-constrained 3D coal seam geological modeling

Liqin Kuang, Zonghui Yao, Yijun Wang, Linke Zhang, Yabin Guo, Xu Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity is 4545 m/s. A 30Hz standard Ricker wavelet is selected to perform forward modeling on the model, and the forward modeling profile is shown...

Time-lapse full-waveform inversion strategies for Snowflake datasets acquired at Newell County Facility in Alberta, Canada

Hyeong-Geun Ji, Kristopher A. Innanen, Sea-Eun Park, Ju-Won Oh

International Meeting for Applied Geoscience and Energy (IMAGE)

... synthetic 4D seismic data, we use the same acquisition geometry of Snowflake I and II datasets. We use 2 m grid spacing and utilize a Ricker wavelet whose...

Uncertainty quantification of single and multi-parameter full-waveform inversion through a variational autoencoder

Abdelrahman Elmeliegy, Mrinal Sen, Jennifer Harding, Hongkyu Yoon

International Meeting for Applied Geoscience and Energy (IMAGE)

... to 20 m. A Ricker pulse is used as the source wavelet with a center frequency of 8 Hz and duration of 4 s sampled every 1 ms. The number of sho...

Seismic Line Across the Wind River Thrust Fault, Wyoming

W.L. Basham, W.F. Martin

Rocky Mountain Association of Geologists

... A S T 1 SKINNER FEDERAL 10000. (9,27N,lOlW) - I 0 0 W a c 5000. A W __ = RICKER WAVELET WITH 0 8 2 0 CYCLES PER SECOND 0 4. DEPTH I N FEET...