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The AAPG/Datapages Combined Publications Database

Showing 17,690 Results. Searched 200,293 documents.

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High-resolution angle gather tomography with Fourier neural operators

Sean Crawley, Guanghui Huang, Ramzi Djebbi, Jaime Ramos, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

... condition, so they don’t contain multiples. We then added errors of various sorts and magnitudes to each background velocity model omitting the salt bodies...

2023

Seismic Study of Ceres Pool

H. M. Thralls

Oklahoma City Geological Society

... values. Time variations in seismic data are dependent on two things: 1) change in depth to a reflector, or 2) change in the velocity of transmission...

1955

ABSTRACT: Depth Conversion for Stacked Reservoirs in Tertiary Clastics; #90017 (2003)

Christian Höcker

Search and Discovery.com

... approaches has been aggravated by changes in field development technology. Horizontal wells may be very sensitive to depth errors, in particular when...

2003

Abstract: Full-waveform VSP Imaging in Desert Environment; #91204 (2023)

Vladimir Kazei, Hong Liang, Ali Aldawood

Search and Discovery.com

... features extremely heterogeneous low-velocity near surface. Synthetic SEAM Arid benchmark model was specifically designed to simulate seismic imaging...

2023

Advanced Microseismic Monitoring Methods, (2012)

R. J. Mellors, C. Morency, E. Matzel, D. C. Templeton, J. Wang, S. Myers, S. Ford, D. B. Harris, F. Ryerson

Search and Discovery.com

... datasets Lawrence Livermore National Laboratory 5 LLNL-PRES-xxxxxx  Velocity model inaccuracies  Measurement errors  Compounded by station...

2012

Abstract: Converted-wave Time Imaging … Nuts and Bolts; #90187 (2014)

Shaowu Wang, Thomas Hollis, and Wayne Nowry

Search and Discovery.com

..., The effects of migration velocity errors on travel time accuracy in prestack Kirchhoff time migration and the image of PS converted waves: Geophysics...

2014

Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods

I. R. Gordon

AAPG Special Volumes

.... If a single velocity function of 8300 ft/sec were used, errors of +6 ft at A and -440 ft at B would appear on the depth map. End_Page 382...

1992

Deep neural networks for 1D impedance inversion

Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto

Petroleum Exploration Society of Australia (PESA)

... networks can predict velocity models from new data in a few milliseconds, which makes this data-driven approach especially important...

2019

Predicting pressure-dependent velocities for carbonates by linking static and dynamic elastic properties

Xuan Qin, De-hua Han

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 1Rock Physics Laboratory, University of Houston Summary We build a model to predict the pressure-dependent velocity for carbonate by combining...

2022

Velocity model building with a time shift objective function: Gulf of Mexico examples

Yi Yang, Ken Matson, Tadas Krupovnickas, Mark Huiskes, Rene-Edouard Plessix, Sijmen Gerritsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... sensitive to velocity errors are typical of the prospects in today’s exploration drilling portfolio. To address the challenge of cycle skipping...

2022

Improving subsalt images using FWI and FWI imaging: A streamer case study at Big Foot

Weihong Fei, Jingru Chen, Min Yang, Leah Grassi, Erik Everson, Paul Bovet, Marin Laomana, Sheree Wold, Alex Yanjun Hao, Chi Chen, Shubin Zeng, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the velocity errors in the legacy models as well as the poor illumination in the subsalt area, which poses difficulties for distinguishing the faults from...

2022

Application of wave-equation reflection traveltime inversion to the Liwan deep-water streamer data in the South China Sea

Yilin Wang, Liangguo Dong, Chao Huang, Jianming Zhang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... and deep subsurface velocity errors is another challenging issue for WRTI. In WRTI, it is common that the velocity model update in the deep region...

2024

Simultaneous Joint Inversion of Seismic and Gravity Data for Long Offset Pre-Stack Depth Migration in Northern Oman, #41569 (2015).

D. Colombo, M. Mantovani, M. De Stefano, D. Garrad, Hussain Al Lawati

Search and Discovery.com

... 3 Indago Petroleum Ltd., Dubai, United Arab Emirates 4 Ministry of Oil and Gas, Oman 2 Abstract The problem of data-driven velocity model building...

2015

Practical considerations for computing the kernels of reflection-based full-waveform inversion

Houzhu (James) Zhang, Hong Liang, Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

...). Due to various issues such as errors in the initial velocity which may lead to cycle skipping, most of FWI applications rely on transmitted data...

2022

Aerodynamic and Geometric Diameter of Airborne Particles--Discussion

J.P. Le Roux

Journal of Sedimentary Research (SEPM)

..., The relationship between sphere size and settling velocity: Journal of Sedimentary Petrology, v. 41, p. 7-18. HOFMANN, H.J., 1994, Grain-shape indices and isometric...

2002

Aerodynamic and Geometric Diameter of Airborne Particles--Reply

Weinan Chen, Donald W. Fryrear

Journal of Sedimentary Research (SEPM)

..., Inc., 408 p. GIBBS, R.J., MATTHEWS, M.D., AND LINK, D.A., 1971, The relationship between sphere size and settling velocity: Journal of Sedimentary...

2002

Sediment Movement in Relation to Current Velocity

Henry W. Menard

Journal of Sedimentary Research (SEPM)

.... Experimental errors inolved in these determinations of velocity have been found to be less than about three per cent (Menard, 1949.) COMPETENT VELOCITY...

1950

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