Acoustic modelling with elastic AVA effects

Robin P. Fletcher, James Hobro, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

... on all edges. The source is placed at (3000 m, 92 m) and receivers every 1 m at a depth of 92 m, giving a maximum offset of 3 km. A Ricker wavelet...

A 3D immersed boundary method for acoustic wavefield simulation with irregular surface topography

Xiang Li, Ziduo Hu, Yancan Tian, Wei Liu, Zhonghua Xu, Gang Yao

International Meeting for Applied Geoscience and Energy (IMAGE)

... × 151 cells with a sampling interval of 10 meters in X, Y and depth directions. The source signature is a Ricker wavelet with a dominant frequency...

Simulation of seismic waves in the fluid-solid coupled thermoelastic medium

Sen Yang, Guochen Wu, Junzhen Shan, Hongying Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., the explosive source is simulated using a Ricker wavelet (fm=20 Hz), and the sampling interval is dt=0.8ms. Fig. 2 is a snapshot of the wavefields at 1144ms...

Optimal transport for elastic source inversion

Tyler Masthay, Björn Engquist

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Figure 1 demonstrates that convexity of W2 under shift is preserved after renormalization of a model elastic wave with a Ricker wavelet source...

Finite-frequency transmission traveltime tomography in VTI media

Fei Luo, Lanlan Yan, Jiexiong Cai

International Meeting for Applied Geoscience and Energy (IMAGE)

... uniformly distributed on the surface, with the distance between detection points of 0.005km and the starting position. Ricker wavelet with dominant...

Abstracts: Color Correction for Gabor Deconvolution: A Test with Field Data; #90173 (2015)

Peng Cheng, Gary F. Margrave, David C. Henley

Search and Discovery.com

.... The synthetic seismic trace was created using a Ricker wavelet with a dominant frequency of 40Hz. The last event of the synthetic seismic trace is generated...

Abstracts: Feasibility of 4D Multicomponent Seismic Methods for Monitoring CO2 Storage in the Redwater Leduc Reef, Alberta; #90173 (2015)

Taher M. Sodagar and Don C. Lawton

Search and Discovery.com

... were generated by convolving the reflectivity functions at the computed arrival times with a zero-phase 40 Hz Ricker wavelet for PP data and a 20 Hz...

Fracture Characterization Based on Attenuation Estimation From Seismic Reflection Data Using Well-Log-Based Localized Spectral Correction

Fangyu Li, Tao Zhao, Tengfei Lin, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

...-velocity (Figure 3). The source pulse is a Ricker wavelet of 100-Hz central frequency. We set up two cases on this model: one with no thin beds...

Inverse scattering theory: Time-dependent perturbation theory for wave scattering in time varying media

Xingguo Huang, Ru-Shan Wu, Pan Zhang, Wenrui Ye, Morten Jakobsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... is a Ricker wavelet with a dominant frequency of 20 Hz. The recording time is 2 s and the sample interval is 1ms. The medium is perturbed at t = 0.4s...

Analysis of the impact of demigration on traveltime-based reflection full-waveform inversion

Hong Liang, Houzhu (James) Zhang, Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

...simple two-layer model with one reflector at depth of 1500 m (source wavelet is a Ricker wavelet with peak frequency of 10Hz). The velocity in the upper...

Use of 2-D and 3-D Seismic Data to Reduce Drilling Risk, Ismay Algal-Mound Play, Southern Paradox Basin

Beth McBride, Claudia A. Rebne

Rocky Mountain Association of Geologists

... response is shown with a 40 Hz Ricker wavelet (Fig. 6B). The tuning point is defined as where constructive interference of the wavelets from the positive...

Minnelusa Formation Exploration, Powder River Basin, Wyoming: An Integrated Approach

Laura A. Welch, Jesse C. Taylor

Rocky Mountain Association of Geologists

... wavelet similar in character to a Ricker wavelet. Ricker wavelets were therefore used to create synthetic seismogramsfrom the well logs to correlate...

Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014)

Waheduzzaman Talukder and Ralph Phillip Bording

Search and Discovery.com

... edge (Fig. 1). The source signature shown in the Fig.2, is a single Ricker wavelet with 50Hz. dominant frequency. The computation of all the 2D...

A geophysical prior knowledge guided semisupervised deep learning framework for AVA inversion

Lei Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... by the Ricker wavelet formula. To test the feasibility of the framework, we chose different number of Vp , Vs , and 𝜌 model data to train...

Deep learning based wavefield separation method for VSP data

Gang Feng, Qin Su, Zhe Yang, Wei Yang, Jian-Hua Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... parameters are shown in Table 1. Table 1 forward parameters Type parameters Wavelet Domain frequency Maximum record time Time sample rate Ricker...

From a Field Based Geological Model to a Seismic Image: The Middle Eocene Ainsa System (South-Central Pyrenees); #90017 (2003)

Giovanni Benevelli, S. Angella, L. Fava, P. Rocchini, A. Valdisturlo

Search and Discovery.com

... to compare the synthetic seismic line with the acquired one, we choose a zero-phase, 100 Hz Ricker wavelet (fig. 1). The seismic-modeling software offers...

Predicting Reservoir Properties from 3-D Seismic Attributes with Little Well Control - Jurassic Smackover Formation, Bruce S. Hart, Search and Discovery Article #40046 (2002)

Search and Discovery.com

A dense linear array for passive seismic imaging of geothermal structural features: The FOAL experiment at Utah FORGE

Jaewoo Kim, Jonathan Ajo-Franklin, Tanner Shadoan, Valeriia Sobolevskaia, Julia Correa, Barry Freifeld

International Meeting for Applied Geoscience and Energy (IMAGE)

... was generated by convolving a Ricker wavelet with a center frequency of 30 Hz with arrival time data predicted through ray tracing using a velocity model...

Time-lapse full-waveform inversion by model order reduction using radial basis function

Haipeng Li, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... for the baseline FWI. A narrow-offset survey is considered here to test the reflection FWI, with a total of 11 sources (16 Hz Ricker wavelet) and 10-m spacing...

Acoustic target-level full-waveform inversion: Applied to ocean-bottom seismic data

Carlos A. N. da Costa, João M. de Araújo, D.J. Verschuur, Aydin Shoja

International Meeting for Applied Geoscience and Energy (IMAGE)

..., representing a strong contrast in this region. In addition, we use a Ricker wavelet (Ricker, 1953) with 30 Hz peak frequency and a free surface at the top...

A method to identify subtle carbonate reservoirs

Shaoying Chang, Mengxiu Wang, Kaiyuan Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... obtained from the carbonate reservoirs but it is worth applying for other convolution of the model (figure 1a) with 35HZ ricker reservoirs. wavelet...

Least-squares migration utilizing high-resolution point spread functions generated from local angle domain illumination vectors

Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

...he PSF was generated from the LAD for each image point, using a 20Hz Ricker wavelet at the target area. The LSM image reveals enhanced details and high-dip fe...

Abstract: Time-Reversal Extrapolation for Microseismic Event Localization; #90224 (2015)

Zhenhua Li and Mirko van der Baan

Search and Discovery.com

... triangles, while the source is explosive modeled with a Ricker wavelet with a peak frequency of 30HZ. Both the pressure and particle velocities...

The Balance between Geophysics and Geology in Seismic Interpretation, by Alistair R. Brown, #40615 (2010).

Search and Discovery.com

One-Dimensional Prestack Seismic Inversion with Very Fast Simulated Annealing using Edge-Preserving-Smoothing Filter; #41576 (2015)

Somanath Misra, Mauricio Sacchi

Search and Discovery.com

... the Aki-Richards approximation of Zoeppritz equations. The angle-dependent reflection coefficients are further convolved with a known Ricker wavelet...