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The AAPG/Datapages Combined Publications Database

Showing 499 Results. Searched 200,357 documents.

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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...

1985

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...

2014

Three-dimensional Seismic Inversion and Geostatistical Reservoir Modeling of the Rotliegend Gas Field

R. K. Shrestha, M. Boeckmann, S. Faruqi, M.-K. Wang

AAPG Special Volumes

... and convolving them with a zero-phase 30-Hz Ricker wavelet having amplitude and frequency characteristics similar to the composite wavelet. The synthetic...

2006

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...

2024

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...

2024

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...

2003

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...

2023

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...

2024

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...

2024

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...

2022

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...

2024

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...

2015

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...

2015

Seismic Modeling of an Early Jurassic, Drowned Carbonate Platform: Djebel Bou Dahar, High Atlas, Morocco (1)

A. EWAN CAMPBELL and JAN STAFLEU

AAPG Bulletin

... as in Figure 6a. Figure 8b shows a vertical incidence synthetic seismogram of the platform margin model using a 50-Hz Ricker wavelet...

1992

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... results from convolution of the reflection coefficients estimated from velocity and density logs with a zero phase Ricker wavelet of desired bandwidth...

1983

Seismic Qualitative and Quantitative Analysis for Reservoir Characterization of Globigerina BH Gas Field, North East Java Basin.

Indra Sumantri, Okky Yuditya Pahlevi, Hendra Himawan, Vickry Rowi, Kian Han

Indonesian Petroleum Association

... be continued, in this case the angle is set between 5o – 45o with 30Hz Ricker wavelet convolution to model the offsetdependent reflectivity synthetic...

2021

The importance of viscoelastic waveform inversion in VSP: Synthetic studies

Yu Chen, Shujaat Ali, Takashi Mizuno, Pierre Bettinelli, Jol Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

... wavelet, which is assumed to be a Ricker wavelet. It gridsearches the best fc to reach the highest maximum correlation coefficient (CC), which corresponds...

2022

Graph-space optimal transport-based 3D elastic FWI for near-surface seismic applications

Dmitry Borisov, Richard D. Miller, Shelby L. Peterie, Julian Ivanov, Anthony M. Hoch, Steven D. Sloan

International Meeting for Applied Geoscience and Energy (IMAGE)

... at x=8 m. Receivers are located between 8 m and 92 m, spaced 2 m apart. To generate the data, we use a vertical force source with a 17 Hz Ricker wavelet...

2022

PP-PS depth-domain AVA inversion

Maud Cavalca, Robin P. Fletcher

International Meeting for Applied Geoscience and Energy (IMAGE)

...) and acquisition limitations (geometry footprint, bandlimited source wavelet). An estimate of reflectivity can then be derived through iterative...

2023

Seismic resolution enhancement with self-supervised learning

Shijun Cheng, Tariq Alkhalifah, Haoran Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... is to use the minimal number of wavelet-convolved reflection spikes to simulate a seismic trace. It was initially applied on a trace-by-trace basis, resulting...

2024

Abstract: Nonlinear Seismic Wave Propagation in Heavy Oil; #90224 (2015)

Wubing Deng and Igor B. Morozov

Search and Discovery.com

...-domain differential equations (1)–(3) can be readily implemented in 1-D a finite-difference algorithm. The source is modelled as a zero-phase Ricker...

2015

Use of extended source inversion for estimating the noise level in seismic data

Huiyi Chen, William W. Symes, Susan E. Minkoff

International Meeting for Applied Geoscience and Energy (IMAGE)

... the noisefree data F[m]w in which the slowness m = 0.4 s/km, the offset between source and receiver r = 1 km, and the source wavelet is a 40 Hz Ricker...

2022

Seismic inversion with implicit neural representations

Juan Romero, Wolfgang Heidrich, Nick Luiken, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... contrasts (Figure 2i). The corresponding seismic image is computed using a Ricker wavelet (Ricker, 1943) with a peak fre- Fourth International Meeting...

2024

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