Abstract: On Choosing Differential Operators; #90171 (2013)

John C. Bancroft

Search and Discovery.com

... filters to reduce aliasing, finite difference solutions to the wave equation, or wavelet correction when modelling with diffractions or migrating...

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

... International, 168, 152–170. Lailly, P., 1983, The seismic inverse problem as a sequence of stack before migrations, in Bednar, J. B., Redner, R...

Abstract: Receiver Comparison for a Non-repeatable Earthquake Source on the Hussar 2011 Low-frequency Seismic Experiment; #90174 (2014)

Kevin W. Hall, Gary F. Margrave, and Malcolm B. Bertram

Search and Discovery.com

... Low-frequency seismic data is affected by receiver response to ground motion, low-cut filters in recording systems, and Vibroseis correlation. The 4.5...

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... that is based on the Pre-Stack Time Migration (PSTM) algorithm. The method is fast compared to conventional FWI techniques in forward and inverse iterations...

Abstracts: A Decomposition of RP into Contributions from single-parameter Reflectivities; #90173 (2015)

Kristopher A. Innanen

Search and Discovery.com

... parameters. A forward/inverse series framework leads to an alternative approach to this type of decomposition. The first order terms in the decomposition...

Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)

Nasser Kazemi

Search and Discovery.com

... attenuation in the presence of statics. Introduction By now it is well known that Radon transform operator is not orthogonal. Forward and inverse...

Field Observations and Geochemical Analysis of Laterally Continuous Aragonite Veins: Insight into Ancient Fluid Travel, #50887 (2013)

Elizabeth A. Horne, James P. Evans, Dennis Newell, Niko Kampman, Steven Nelson, Elizabeth S. Petrie,

Search and Discovery.com

... ‰ SMOW 4.5 sample grouping record changes in 15 Proposed Source 2/7 2/6 2/5 2/2 2/1 2/3 2/4 9 Slope = 2.30 ssin De ga 8 Inverse...

Finding a Better Path to Impedance Inversion; #41722 (2015)

Amit Kumar Ray, Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... weights calculated on the basis of inverse distance, and similarly extrapolates away from the well control. When quality checks are performed...

Predicting ground surface deformation induced from CO2 plume movement using machine learning

Ibrahim M. Ibrahim, Saeed Salimzadeh, Dane Kasperczyk, Teeratorn Kadeethum

Australian Energy Producers Journal

... storage, greenhouse gas emissions, ground surface deformation, inverse analysis, machine learning surrogate model, tiltmeters. Introduction Accepted: 15...

The Use of Magneto-Telluric Surveying as a Risk Reduction Tool for Hydrocarbon Exploration in the Papuan Foldbelt

J. K. Bennett, M. Parish

Papua New Guinea (PNG) Petroleum Convention Proceedings

...-dimensional, both modes of the Rho-plot are identical. Figure 8b shows the result of inputting this cal­ culated Rho-plot into an inverse modelling pro...

Volume Fractions of Lithologic Units Deposited per Geologic Epoch in the Cenozoic, Keathley Canyon and Walker Ridge, Deepwater Gulf of Mexico: Part 1„Sand, Shale, and Siltstone

Sharon Cornelius, Peter A. Emmet

GCAGS Journal

... continuously decreased while during the same time period, the volume fraction of shale has increased. Sand volume fractions appear to have an inverse...

PWD-PINN: Slope-assisted seismic interpolation with physics-informed neural networks

Francesco Brandolin, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... be used to estimate the dominant local slopes of the data by solving an inverse problem that minimizes the residual between the predicted and original...

Overburden Compensation: A Pragmatic Solution to the Frequency Dependent Amplitude Losses Associated With Laterally Variable Overburden

Swee Leng NG, Martin Bayly

Indonesian Petroleum Association

... the frequency loss but often over-gains noise. Hargreaves and Calvert (1991) used inverse earth attenuation (Inverse Q) filtering techniques based...

Abstract: Barrier overwash and washover sedimentation Aspy Bay, Cape Breton Island

D. L. Forbes, R. B. Taylor, D. Frobel

Atlantic Geology

.... The thickness of individual sedimentation units ranges from order 10° to 10 1 mm. Some units appear to exhibit inverse textural grading consistent...

Machine learning inversions incorporating geologic information through variational autoencoder and physics-based neural network

Yaoguo Li, Taqi Alyousuf, Andy McAliley

International Meeting for Applied Geoscience and Energy (IMAGE)

...-inverse operator contained in the network. However, this strategy is unlikely to become feasible for geophysical inversion applications, particularly...

Kronecker neural networks for the win: Overcoming spectral bias for PINN-based wavefield computation

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... by using the inverse tangent (atan), exponential linear unit (elu), locally adaptive sine (l-sin), and locally adaptive cosine (l-cos) activation functions...

Accelerating innovation with software abstractions for scalable computational geophysics

Mathias Louboutin, Philipp Witte, Ali Siahkoohi, Gabrio Rizzuti, Ziyi Yin, Rafael Orozco, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

..., inverse problems based on the wave-equation (e.g., medical ultrasound). We developed a software environment aimed at scalable research and development...

Simultaneous inversion of velocity and reflectivity for enhanced seismic imaging

Yang Yang, Sriram Arasanipalai, Nizar Chemingui, Neil Paddy, Nicholas Montevecchi, David McCallum

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the gradient based on inverse scattering theory, enabling the sensitivity kernels to update the corresponding velocity and reflectivity with minimum crosstalk...

Application of Robust Noise Reduction on a Land 3D Seismic Data

Agus Abdullah, Jesse Shaw

Indonesian Petroleum Association

... surface wave mitigation filters are phase velocity matched filters. A dispersive surface wave can be expressed as , where is the Fourier transform...

Application of least squares one-way wave migration in irregular sampling data of Bohai Bay Basin

Lv Yongchang, Li Daoshan, Wang Yongming, Meng Jie, Feng Xukui, Hu Dan, Wu Xiaofeng, Kong Zhaoju

International Meeting for Applied Geoscience and Energy (IMAGE)

... technology is not the inverse of Born forward modeling, but its conjugate. Because the field acquisition and imaging processing are affected...

Abstract: Dolomitization Patterns in Paleozoic of Williston Basin, by Alan C. Kendall; #90971 (1976).

Search and Discovery.com

Evidence of a Permian Megatsunami Generated by the Guadalupian Bell Canyon Rader Slide

John D. Pigott, Travis W. Moreland, John S. Hornbuckle, Kulwadee L. Pigott, Fengyan Shi

West Texas Geological Society

... problem. This investigation attempts to perform a solution of the inverse problem based upon observations from the Permian. The Bell Canyon Rader...

Fast and efficient structure-oriented preconditioning with on-the-fly dip estimation

Rodrigo Felicio Fuck, Lorenzo Casasanta

International Meeting for Applied Geoscience and Energy (IMAGE)

... is necessary to get this result. To illustrate the effect of guided filters in inverse problems, we compare ray-based tomographic model updates from experiments...

Interpretation and development of top-surface grid in subsurface ground profile using Inverse Distance Weighting (IDW) method for twin tunnel project in Kenny Hill Formation

Mohd Faiz Mohammad Zaki, Mohd Ashraf Mohamad Ismail, Darvintharen Govindasamy, Mohd Hazreek Zainalabidin

Geological Society of Malaysia (GSM)

...Interpretation and development of top-surface grid in subsurface ground profile using Inverse Distance Weighting (IDW) method for twin tunnel project...

VMD Based Sedimentary Cycle Division for Unconventional Facies Analysis

Fangyu Li, Tao Zhao, Yin Zhang, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... model: the thickness of sandstone and mudstone increases with depth, while the grain-size of sediment change from fine to coarse. b) Inverse cycle...