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The AAPG/Datapages Combined Publications Database

Showing 1,097 Results. Searched 200,357 documents.

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Improve Kirchhoff depth imaging using full-wave-equation traveltimes

Yongzhong Wang, Yang He, Alex Yeh, Faqi Liu, Bin Wang, Carlos Caldern

International Meeting for Applied Geoscience and Energy (IMAGE)

... and efficiency in generating Surface-Offset-binned common imaging Gathers (SOGs). However, traditional ray-based traveltime computation becomes less...

2023

Abstract: Kirchhoff Prestack Time Migration with Angle Domain Common Image Gathers; #90174 (2014)

Jianhua Pan, Robert Tilson, Gerry Schlosser, and Elvis Floreani

Search and Discovery.com

... the traveltime relations with a constant background velocity. With a constant background velocity, source-rays and receiver-rays are straight...

2014

Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... by nonlinear traveltime tomography that accounts for topography, and resolves lateral and vertical velocity variations. (2) Several different strategies...

2015

CMP domain near-surface velocity model building based on deep learning

Yihao Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... is an essential step. Accurate near-surface velocity model helps to improve static correction and deeper structure imaging. First arrival traveltime...

2022

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... of a tomographic velocity model, the reprocessing of the reflection seismic and its corresponding depth migration using velocities derived from the traveltime...

2014

3-D High-Resolution Reservoir Characterization from Crosswell Seismic Data

John Washbourne, Kenneth Bube

West Texas Geological Society

... interpolation. Bube, K. P., and Langan, R.T., 1994, A continuation approach to regularized traveltime tomography: 64th Ann. Intl. Mtg., Society Exploration...

1998

Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data

A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah

Indonesian Petroleum Association

...; Deregowski, 1990; Liu, 1997) , traveltime inversion/reflection tomography (Bishop et al., 1985; Farra and Madariaga, 1988) and combination among both of them...

2009

Joint inversion of first-break and early-arrival wave for near surface imaging

Yiming Pan, Kai Zhang, Yipeng Xu, Hailin Wang, Ping Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... modeling is one of the most challenging problems in seismic exploration. First-arrival traveltime tomography exhibits low dependency on the initial model...

2024

Ocean Margin Drilling Project Data Synthesis off Eastern North America: 34° to 41°N Latitude: ABSTRACT

P. D. Rabinowitz, J. I. Ewing

AAPG Bulletin

... (reflector X). Isopach maps between these reflectors and between them and the sea floor are also included. Contours are two-way traveltime...

1983

ABSTRACT: 2D/3D Modeling of the Pacific Lower Mantle Using S, SKS and SKKS Traveltimes and Amplitudes; #90113 (2010)

Yang Zhang and Jeroen Ritsema

Search and Discovery.com

... of the traveltime differences is detected between SKKS and SKS and between S and SKS. Combined, these observations suggest that S, SKS, and SKKS interact...

2009

ABSTRACT: Multi Focusing Stack Technique for Subsurface Imaging; #90118 (2011)

Sunjay Sunjay

Search and Discovery.com

... mandatory in areas of complex geology— because it accounts for traveltime nonhyperbolic moveout, it has, in fact, quite a limited purpose—to convert...

2011

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... by simultaneously minimizing the traveltime errors of both reflection and refraction data. Refraction waves mainly propagate laterally and thus provide...

2022

Abstract: Migrating Reflections from the Moho Using a Refraction Velocity Model … An Example from the Slave Craton, NWT; #90211 (2015)

Joaquin Aristimuno and Claire Samson

Search and Discovery.com

... traveltimes. Traveltime inversion of the wide-angle reflections and refrac tions recorded during refraction surveys, on the other hand, can provide...

2015

Abstract: Target-Oriented Imaging for Continous Seismic Reservoir Monitoring; #90319 (2018)

Hongwei Liu, Mustafa Al-Ali

Search and Discovery.com

... use the NMO velocity defined at the target horizon to derive the initial operators. The principle of equal-traveltime affirms that the traveltimes...

2018

Abstract: Imaging Scattered Seismic Energy in Alberta Oil Sands; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... a constant traveltime difference between the specular reflection traveltime and the computed traveltime from the recorded trace to the image trace...

2014

Abstract: Advantages and Disadvantages of Array Depth Placement and Longer Toolstring Apertures; #90187 (2014)

N. Verkhovtseva and J. Shaffner

Search and Discovery.com

... with 12m interconnectors is shown to be set above the zone of interest. Traveltime residual contours of 0.2ms intervals as well as Monte-Carlo solutions...

2014

Accelerated Kirchhoff depth migration on CPU-GPU heterogeneous computing systems

Yujin Liu, Hongwei Liu, Yi He, Fuhao Qin, Yue Du

International Meeting for Applied Geoscience and Energy (IMAGE)

... be regarded as two traveltime tables or traveltime volumes. There are many different implementations of Kirchhoff depth migration, but they usually have...

2022

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