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The AAPG/Datapages Combined Publications Database

Showing 772 Results. Searched 200,293 documents.

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Application of three-dimensional seismic texture analysis with special reference to deep-marine facies discrimination and interpretation: Offshore Angola, west Africa

Dengliang Gao

AAPG Bulletin

... reflection seismic response is an acoustic expression of stratigraphy via a wavelet convolution (Sheriff and Geldart, 1995), a natural constructive...

2007

4D Seismic and Rock Physics Modeling Responses to Reservoir Steam Flood

Muhammad Edisar, Lilik Hendrajaya, Gunawan Handayani, Umar Fauzi, Laode Ngkoimani, Yarmanto

Indonesian Petroleum Association

... rock physic model. (4) Calculation of reflectivity and convolution with an appropriate seismic wavelet to output a synthetic seismic model...

2005

AAPG Archie Series, No. 1, Chapter 12: Low-resolution Techniques

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

... by convolution models. • Invasion and borehole effects are not incorporated. Figure 12.5. Correlation between sand fraction and water...

2006

Volumetric Calculations Using 3D Seismic Calibrated Against Porosity Logs - Pretty Hill Formation Reservoirs, Onshore Otway Basin

P. J. Boult, J. Donley

Petroleum Exploration Society of Australia (PESA)

... on a weighted average or convolution sampling distances were used (Figure 3). Each attribute had a different wavelength and the manipulation...

2001

High-fidelity GPR image super-resolution via deep-supervised machine learning

Kai Gao, Carly M. Donahue, Bradley G. Henderson, Ryan T. Modrak

International Meeting for Applied Geoscience and Energy (IMAGE)

...-tapered Ricker-type point spread function in 2D for convolution with target GPR images to generate low-resolution GPR images. We train the 2D version...

2022

Geology of the Nuhn Uranium Ore Body, Jackson Group, South Texas Uranium District

Richard P. McCulloh, Charles Roberts

South Texas Geological Society Special Publications

... outcrop, but has a long convolution opposite the bend in the outcrop. This redox boundary is downdip of most of the chemical ore. In addition, chemical ore...

1986

Petrofacies Units and Sedimentary Facies of the Late Mesozoic Strata West of Coalinga, California

Charles F. Mansfield

Pacific Section SEPM

... ripple marks, small-scale cross-lamination, ripple-drift lamination, convolution, and incipient soft sediment diapirism. The lower portion is not entirely...

1972

Geology of the Nuhn Uranium Ore Body, Jackson Group, South Texas Uranium District

Richard P. McCulloh, Charles T. Roberts

Bulletin of South Texas Geological Society

... of the lease (fig. 12) from core descriptions. The boundary generally trends parallel to the lower Stones Switch outcrop, but has a long convolution opposite...

1983

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... from an air gun monitored signature, or like source) the theoretical seismogram is constructed by the process of convolution — essentially...

1978

Reliable uncertainty estimation for seismic interpretation with prediction switches

Ryan Benkert, Mohit Prabhushankar, Ghassan AlRegib

International Meeting for Applied Geoscience and Energy (IMAGE)

... nets, atrous convolution, and fully connected crfs: IEEE Transactions on Pattern Analysis and Machine Intelligence, 40, 834–848, doi: https://doi.org...

2022

Use of SEISLOG for Basin Evaluation and Field Development

R. C. Mummery

Geological Society of Malaysia (GSM)

... Equation flection coefficient series of the various lithologic interfaces of the stratigraphic sequence. Convolution of this reflection coefficient series...

1987

Towards understanding the impact of the evanescent elastodynamic mode coupling in Marchenko equation-based demultiple methods

Marcin Dukalski, Christian Reinicke, Kees Wapenaar

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the frequency domain or when combining fields, a convolution is replaced with a correlation. This is why (without undertaking additional steps – e.g....

2022

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

Internal multiple elimination with an inverse-scattering theory guided deep neural network

Zhiwei Gu, Liurong Tao, Haoran Ren, Ru-Shan Wu, Jianhua Geng

International Meeting for Applied Geoscience and Energy (IMAGE)

...* are the convolution and the correlation integral operator of R  with any wavefields, respectively.  is a small positive value to account for the finite bandwidth...

2022

A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion

Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry

International Meeting for Applied Geoscience and Energy (IMAGE)

... is used (referred to as CG(i) , where i stands for the number of inner iterations). We first assess the effect of Hs in where ∗t denotes convolution...

2022

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)

... gradient descent algorithm, in which the conventional LS-RTM gradient g is augmented through convolution layers. The input into the network is the observed...

2022

Fast Gauss-Newton full-wavefield migration

Siamak Abolhassani, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

... convolution filter for each point in the image space to locally match a reference reflectivity model to its corresponding migration image. For a target...

2022

Increasing signal-to-noise ratio of borehole image logs using convolutional neural networks

Mustafa A. Al Ibrahim, Mokhles M. Mezghani

International Meeting for Applied Geoscience and Energy (IMAGE)

...rg/10.1016/j.petrol.2020.107099. Dumoulin, V., and F. Visin, 2018, A guide to convolution arithmetic for deep learning: arXiv preprint, arXiv:1603.072...

2022

Seismic Acquisition and Processing

Bruce S. Hart

Special Publications of SEPM

... seis ic trace consists of the convolution of the earth's i pulse response (i .e., reflection coefficients) with a wavelet, seis ic processors use...

2000

Geology of Upper Cretaceous and Lower Tertiary Rocks Near Lake Nacimiento, California; Frontmatter

Karen Grove, Stephen Graham

Pacific Section SEPM

... intraclasts; B, bedding amalgamation and convolution; C, large angular boulder clast in conglomerate (staff height equals 1.5 meters). Figure 12...

1986

Acoustic waveform inversion with the Lippmann-Schwinger equation constraint

Rahul Sarkar, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1088/0266-5611/32/1/015007. Vico, F., L. Greengard, and M. Ferrando, 2016, Fast convolution with free-space Green’s functions: Journal of Computational Physics, 323...

2022

AVO and Inversion Contribute to Makassar Exploration Efforts

William L. Soroka, Herry Andiarbowo, Anung Widodo

Indonesian Petroleum Association

... wavelet + Noise (* implies convolution) Because the seismic and wavelet are known, it should be possible to solve this problem for the unknown geology...

1995

Geomechanical prestack depth migration of the Kraken 3D (Browse Basin, Australia)

Jarrod Dunne, Ferudun Kilic, Matthew Zengerer, Pramod Kumar, Hamish Stein, Shiv Pujan Singh, Stephen Gallagher

Petroleum Exploration Society of Australia (PESA)

... Transformation method, which is faster to run than the Spatial Convolution method but not as accurate unless large amounts of vertical padding are applied, thus...

2018

Crustal thickness and velocity structure of southern Peninsular Malaysia

Abdul Halim Abdul Latiff, Amin Esmail Khalil

Geological Society of Malaysia (GSM)

.... In the iterative deconvolution process, the differences between the resultant convolution of the observed vertical component with a spike function, and the recorded...

2018

A Depositional Model for a Flood-Tidal Delta and Washover Sands in the Late Pleistocene Paleo-Tokyo Bay, Japan

Naomi Murakoshi, Fujio Masuda

CSPG Special Publications

... deposition of the large foreset. Figure 7. Schematic section of washover sand. FTD, flood-tidal delta. The convolution structures in the proximal...

1991

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