Abstract: Adaptive Surface Waves Attenuation from Wide-Azimuth Land Data, by David Le Meur, Nigel Benjamin, Teo Wah hong, Tom Van Dijk, and Paul Matheny; #90105 (2010)

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A Robust Gradient for Long Wavelength FWI Updates

Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long

Petroleum Exploration Society of Australia (PESA)

...-resolution velocity models in shallow water settings (e.g. Sirgue et al., 2009; Zou et al., 2014). In this scenario, recorded refractions and diving...

Diffraction amplitudes as a quantitative fracture property interpretation tool

Donald C. Adams, César Barajas-Olalde, Nourelhouda Benouadah, Trevor L. Richards, Bethany A. Kurz

International Meeting for Applied Geoscience and Energy (IMAGE)

... the seismic amplitude of point and edge diffractions. Introduction Seismograms contain many types of waves, including surface waves, refractions...

Recent Developments in Gravity Prospecting on Gulf Coast

Olaf F. Sundt

AAPG Bulletin

.... Cockburn. The area had been shot over by refractions several times without being found until the torsion balance showed indications of a minimum. Further...

The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... reflections (very strong for offset greater than 5-6 km in this case) must be preserved after muting the shallow refractions. This result can require...

Natural fracture distributions in sinuous, channel-fill sandstones of the Cedar Mountain Formation, Utah

John C. Lorenz, Scott P. Cooper, William A. Olsson

AAPG Bulletin

... approach with field examples: Annales Tectonical, v. 2, no. 1, p. 2132.Treagus, S. H., 1988, Strain refraction in layered systems: Journal...

Early Differential Subsidence and Configuration of the Northern Gulf Coast Basin in Southwest Alabama and Northwest Florida (1)

Gary V. Wilson

GCAGS Transactions

... indicate refraction arrivals, dashed lines reflections and questionable refractions arrivals, and dotted lines inferred boundaries. Vertical...

The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

... the results. The voluminous traces give way to fast first break picking and computation of refraction statics. The near-surface low velocity layer presents...

Examples of Optical Analysis and Filtering of Seismic Record Sections: ABSTRACT

J. A. Long

AAPG Bulletin

... dipping in different directions. Remove diffractions and (or) reflected refractions. Attenuate high velocity noise events. Eliminate high frequency...

Abstract: Near-Surface Attenuation Estimation of P and S Waves from Middle East Data, by Nizare El Yadari, Fabian Ernst, and Wim A. Mulder; #90077 (2008)

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Permafrost Studies in the Norman Wells Region, Northwest Territories

P. J. Kurfurst, R. M. Isaacs, J. A. Hunter, W. J. Scott

CSPG Special Publications

.... Can., Paper 73-1, pt. A, p. 226–229. Hunter, J. A., Burns, R. A., Good, R. and Bazeley, P., 1973, Shallow seismic refraction survey, Mackenzie River...

Full waveform inversion of simultaneous long-offset data

Nizar Chemingui, Alejandro A. Valenciano, Andrew Long

Petroleum Exploration Society of Australia (PESA)

... to using both refractions and reflections to update the deeper parts of the velocity model. Our solution directly inverts the simultaneous data...

SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Geologic Divisions in the Southern Appalachians and Interpretation of the Seismic Data

Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver

AAPG Special Volumes

... be reflections, diffractions, reflected refractions, or reflections from outside the plane of the section. Since a cross line is not available near this location...

Automated velocity modeling with domain transformations

Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... ~10,000 discrete shots. The traces contain information about reflections and refractions of the sound wave in the subsurface, and an important step...

Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study

Giuseppe Provenzano, Grégory Biévre, Romain Brossier, Stéphane Garambois, Ludovic Métivier

International Meeting for Applied Geoscience and Energy (IMAGE)

...) and allow for confident first-arrival pickings of P-wave refracted first arrivals. To this aim, super-virtual refraction interferometry (SVRI, Bharadwaj...

The Crustal Structure and Evolution of the Area Underlying the Magnetic Quiet Zone on the Margin South of Australia: Rifted Margins

Manik Talwani , John Mutter , Robert Houtz , Michael Konig

AAPG Special Volumes

... crustal refraction measurements made aboard R/V Vema in January and February, 1976, are combined with new and existing seismic reflection, shallow...

Machine learning-based residual moveout picking

Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja

International Meeting for Applied Geoscience and Energy (IMAGE)

... noise including multiples, refractions, and various imaging artifacts. The picks must also have lateral consistency and provide sufficient spatial...

3D Seismic Reprocessing for Geophysical Analysis of Sea Bottom, Seabed Mapping and Geo-Hazard Clarification

Francesco Paone, Andrea Marceglia, Juan Carlos Coral

Indonesian Petroleum Association

... geohazard analysis. The essential criteria are the frequency bandwidth recorded and the near offsets relative to water depth. Shallow water multiples...

PS reflection-based full-waveform inversion using single-mode propagator

Yongbo Zhai, James Xu, James Rickett, Peng Wang, Xin Cheng, Denes Vigh, Suyang Chen, Cara Smith

International Meeting for Applied Geoscience and Energy (IMAGE)

... the low-wavenumber background of P-velocity models without relying on long-offset refractions. Despite the successful application of FWI in constructing...

Applications of elastic RTM on land data

Min Zhou, Changhua Zhang, Zheng Meng, Bin Yu, Mingqiu Liu, Yequan Chen, Dajian Jiang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the 45-degree dipping layer, 30-degree dipping layer is very weak, 3) more artifacts due to multiples and mode conversion events...

Seismic Frequency Bandwidth Constraints in Deepwater Locations

Andrew Long, Iain Buchan

Indonesian Petroleum Association

... of the source and receiver ghost effects on the interplay between reflected primary energy and all the other seismic events (multiples, refractions, scattered...

Causes and Appearance of Noise in Seismic Data Volumes, by Satinder Chopra and Kurt J. Marfurt; #41476 (2014).

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Structural Framework and the Evolutionary History of the Continental Margin of Western India: Rifted Margins: Field Investigations of Margin Structure and Stratigraphy

Bhoopal R. Naini , Manik Talwani

AAPG Special Volumes

..., and K. Hinz, 1969, Results of seismic refraction measurements in the northern Arabian Sea, a contribution to the International Indian Ocean Expedition...

Review of Developments in 1940, Gulf Coast of Upper Texas and Louisiana

O. L. Brace

AAPG Bulletin

... of discovery set in. Meanwhile, the entire Mississippi Delta area, which had previously been only partially investigated with refractions, was opened...

Seismic Reflection Measurements of Northwest Australian Margin and Adjacent Deeps

J. J. Veevers , D. A. Falvey , L. V. Hawkins , W. J. Ludwig

AAPG Bulletin

...-refraction measurements of a seaward decrease in interval velocity of laterally equivalent sedimentary rocks above the unconformity. Beck, R. H., 1972...