Abstract: High Quality Acoustic and Elastic Modeling; #90187 (2014)

Y. Jewoo, C. S. Shin, and R. P. Bording

Search and Discovery.com

... modeling accomplishes our goal of using the complete wave equation. But all of these techniques are compute intensive and much effort is required...

Abstract: Seismic to Reservoir Simulation: A Cooperative Inversion; #90187 (2014)

Larry Lines and Amir Shamsa

Search and Discovery.com

... production data. For the seismic data, we will generally use some version of the wave equation which for elastic, isotropic and homogeneous media is given...

Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)

Amsalu Y. Anagaw, Mauricio D. Sacchi

Search and Discovery.com

... is computed by solving the full wave-equation using the finite difference method. FWI is a local gradientbased optimization problem requiring...

Abstracts: Tuning Effects in P-wave Reflections from a CO2 Injected Saline Aquifer: A Preliminary Appraisal; #90173 (2015)

Bernard Giroux, Maxime Claprood, and Lorenzo Perozzi

Search and Discovery.com

... are computed using a poroviscoelastic solution of the seismic wave equation. Preliminary results indicate that tuning effect can have a surprising effect...

Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)

Hassan Khaniani and John C. Bancroft

Search and Discovery.com

... in ray based methods is that the foundation of ray tracing techniques is based on the high frequency assumption of wave equation. Therefore, to be able...

Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)

Mostafa Naghizadeh and Kristopher A. Innanen

Search and Discovery.com

..., to estimate data on a regularly and sufficiently sampled grid. An effective solution can open the door to the application of multidimensional wave-equation...

Abstracts: Improved Near-surface Velocity Models from 2D Waveform Tomography of Vibroseis First-arrival Data; #90173 (2015)

Brendan R. Smithyman and Ronald M. Clowes

Search and Discovery.com

... of the seismic data waveforms. In order to produce a dataset that can be modeled approximately by 2-D wave-equation methods, the initial model is used...

An Analytical Formulation of Seismic-derived Resistivity, by Denny Merkurius F. Mendrofa and Bambang Widarsono, #40245 (2007).

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Exploring Beneath High-Velocity Surfaces, by Bob Hardage; #40344 (2009)

Search and Discovery.com

Shallow VSP for Near-Surface Structure and Statics, #41535 (2015).

Soo-Kyung Miong, Robert R. Stewart, Joe Wong

Search and Discovery.com

... Alberta. The processed hydrophone VSP data showed distinct first arrivals and credible reflections. The P-wave velocity model is obtained by travel time...

Advances in OBN Technology: Full Azimuth, Long Offset Illumination for Complex Reservoirs, #70290 (2017).

John Smythe

Search and Discovery.com

... for 4D analysis • Full azimuth • Long offset Processing Benefits of OBN Acquisition • Imaging technologies – – – – Wave equation migration (TTI, VTI...

Deep compressed learning for 3D seismic inversion

Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo

International Meeting for Applied Geoscience and Energy (IMAGE)

... records, and the very-high computational cost of iterative numerical solution of the wave equation, as required by traditional algorithms such as Full...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

...) applications using a circular shot OBN survey. The synthetic seismic data was generated solving the acoustic wave equation by the finite difference...

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... the time interval t. For a given model m of the subsurface, the forward problem (wave equation) can be solved using numerical methods mod...

Pluto 4D Monitor Two - A Second Outstanding Success

Sandra Mann, Scott Gagen

Australian Petroleum Production & Exploration Association (APPEA) Journal

... include FWI, full waveform inversion; LSM, least squares migration; WEB-AVO, wave equation based amplitude versus offset inversion. Further details...

STRUCTURAL INTERPRETATION OF THE SOUTHERN HALF OF THE SAWTOOTH SALIENT OF THE MONTANA DISTURBED BELT

Stephen P. Gardner, Jonathan M. Achuff

Montana Geological Society

... wave equation. The results of the forward modeling, displayed as synthetic seismograms comprise a catalog of theoretical responses...

Characteristics of Microzonation Modelling in Reservoir Evaluation

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Geobody-oriented interpretable velocity fusion modeling in depth domain with seismic facies informed segmentation method

Meng Li, Qingcai Zeng, Hao Shou, Nan Qin, Chunming Wang, Tongsheng Zeng

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion and waveform inversion, where the closer the mathematical model used for inversion is to wave equation, the higher the resolution of velocity model...

High-fidelity full-waveform imaging via impedance inversion

Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... from the acoustic wave equation with velocity density : 1 − ∇ ⋅∇ ( ; ; )= ( − ) ( ) , and (1) ( ; ; )= ( ; ; ) where ( ) denotes source...

InvMixer An efficient deep neural network for seismic inversion

Tianyi Zhang, Mauricio Araya-Polo, Anshumali Shrivastava

International Meeting for Applied Geoscience and Energy (IMAGE)

... of reducing uncertainty, but even highly accurate approximations of the wave equation depends on initial conditions and parameters such as a subsurface...

Elastic multiparameter full-waveform inversion application on sparse ocean-bottom node data

Denes Vigh, Xin Cheng, Bing Bai, Zongcai Feng, Kate Glaccum

International Meeting for Applied Geoscience and Energy (IMAGE)

... distort the results if the acoustic wave equation is employed. Increased physics in FWI allows us to interrogate the power of elastic FWI versus...

Elastic wave reverse-time migration with dynamic focused beams for weak anisotropic media

Ning Qin

International Meeting for Applied Geoscience and Energy (IMAGE)

... to deal with multiple arrivals and steep dips. The elastic wave reverse time migration is based on full-wave equation and uses the corresponding imaging...

Seismic Modeling of Porosity Distribution in a Miocene Reef, Salawati Island, Indonesia

William T. Valenta

Indonesian Petroleum Association

... data now correlate with the zero-phase synthetic trace. Additional processing included automatic computer statics and wave equation migration. Figure...

Modified Residual Migration

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... simple, accurate, and efficient, particularly for single-pass 3-D migration. Introduction Since the inception of migration based upon the wave equation...

Migration Velocity Analysis by Migration of Velocity Spectra

Craig J. Beasley, Rolf Klotz

Southeast Asia Petroleum Exploration Society (SEAPEX)

... wave equation methods to conventional velocity spectra prior to migration of the seismic data. Moreover, the computational demands for this approach can...