Abstract: Near Surface Characterization Using TDEM Over Marmul Area, South Oman, by A. Al-Shukeili, H.M. El-Kaliouby, S. Mahrooqi, and A.S. Al-Ismaily, #90188 (2014)

Search and Discovery.com

Observations of Azimuthal Anisotropy in Prestack Seismic Data, #41572 (2015).

David Gray

Search and Discovery.com

... from the very near surface to greater than 5000 m. Cheadle et al (2001) make an observation that may explain the observed shallow anisotropy. Refraction...

Full-waveform inversion and FWI imaging for land data

James Sheng, Cristina Reta-Tang, Faqi Liu, Alfredo Vzquez Cant, Alejandro Cabrales Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

... as a layer at or near the surface, possibly of heterogenous, unconsolidated material with low seismic velocities, can produce complex elastic waves...

Mapping the hydrostratigraphy and groundwater salinity of the Ord Bonaparte plains from AEM and NMR data

Kok Piang Tan*, Neil Symington, Chris Harris-Pascal, Larysa Halas, Ken Lawrie

Petroleum Exploration Society of Australia (PESA)

... are correlated to the hydrostratigraphy. The principal near-surface aquifer underlying the proposed agricultural development area is termed...

Abstract: Trace Interpolation and Elevation Statics by Conjugate Gradients; #90172 (2014)

Marcus Wilson, Robert J. Ferguson

Search and Discovery.com

... shot gathers for topography and receiver statics, downward propagate the receiver wavefield through a heterogeneous near surface to a flat datum...

Geology, A Geophysical Tool

E. V. McCollum

AAPG Bulletin

..., should be included in this exchange of data. The physical constants of materials near the earth's surface must be estimated. Near-surface density...

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... Near Surface Low Velocity Layer by Seismic Tomography, Proceeding of The 3rd SEGJ/SEG International Symposium on Geotomography, Tokyo, November, 8-10...

Seismic Exploration in Railroad Valley, Nevada

John H. Vreeland, Bert H. Berrong

Rocky Mountain Association of Geologists

... to the beds being investigated. There are extreme lateral variations in the composition of the near-surface sediments of the bajada. This is caused...

New geological insights gained from the reprocessing, imaging, and interpretation of legacy seismic datasetsOffshore Mauritania

Kranthi Garidepalli, Elisabeth Gillbard, Simon Dean, Darren Judd, Nassim Kettouche, Paul Bellingham

International Meeting for Applied Geoscience and Energy (IMAGE)

.... In shallow water areas FWI used diving waves to resolve the complex velocity in the near surface including the seafloor canyons. General moveout (GMO...

The Limitations of Seismic Modelling of Geological Structures

B. L. N. Kennett

Petroleum Exploration Society of Australia (PESA)

... are sufficient to return seismic energy to an array of detectors at or near the surface. In detail, we know from well-log studies that the features which give...

Facies Analysis and Reservoir Characterization of Outcrop Analogs to the Navajo Sandstone in the Central Utah Thrust Belt Exploration Play

Ashley Dalrymple, Thomas H. Morris

Utah Geological Association

..., no. 2, p. 111–114. Fryberger, S.G., Schenk, C.J., and Krystinik, L.F., 1988, Stokes surfaces and the effects of near-surface ground-water-table...

Sedimentary Structures as Indicators of Paleoclimatic Fluctuations: Pyramid Lake, Nevada

Joseph P. Smoot, Larry V. Benson

Utah Geological Association

... muds near the surface and large cracks in lower clays. Open cracks were filled with sand. White layer (MB) is the Marble Bluff tephra. Laminated clays...

Integrating advanced azimuthal tomography and FWI to improve complicated carbonate fracture-cavity reservoirs in ShunBei oil fields, Tarim Basin

Lanlan Yan, Jiashun Yao, Hao Zheng, Kai Guo, Yong Zhang, Feiluo Peng, Yan Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... prolific areas contributing toward the company’s business and economic portfolio of SINOPEC. The complicated near surface condition coupled with irregularly...

Depositional Environments of the Bottineau Interval (Lodgepole) in North Dakota

Thomas Heck

Montana Geological Society

... to be the result of reducing conditions below the sediment-water interface. The near surface occurrence of reducing conditions may indicate...

Volume-constrain first arrival tomography based near surface modeling and its application

Naijian Wang, Zhihui Yan, Qingpo Ma, Wei Wu, Yunfei Zu, Yonggui Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

...-velocity layer interface in the nearsurface structure, and the near-surface velocity shows obviously continuous medium feature. When performing stack...

A Note on the Age of the Canada Basin

Lawrence A. Lawver, Arthur Baggeroer

Alaska Geological Society

... layer in 34 near-surface cores. Age Range for Heat Flow Because we have now calculated both an average density of the sediments and an average...

Abstract: Adaptive f-xy Hankel Matrix Rank Reduction Filter to Attenuate Coherent Noise; #90174 (2014)

Nirupama (Pam) Nagarajappa

Search and Discovery.com

... wave). Other types of coherent noise that are less common in occurrence and yet equally important, include air blast, flexure waves and near surface...

Sedimentation of Deep Water Conglomerates in Lower Ordovician Rocks of Quebec-Composite Bedding Produce by Progressive Liquefaction of Sediment?

Hugh E. Hendry

Journal of Sedimentary Research (SEPM)

... right. B. Sandstone layer in compound conglomerate bed showing flat top and irregular lower surface (dashed line). Headland 1. C. Sole example...

The Development of Large Structures in the Deepwater Northern Gulf of Mexico

Steve Hall

Houston Geological Society Bulletin

... that fed the near surface salt sheets via stems. This late salt movement deformed what were once much more laterally extensive, connected clastic...

Abstract: Cross-Validation of 3C and 9C Prestack Shear Wave Splitting Analysis at Big Sky; #90224 (2015)

Jeff P. Grossman and Gulia Popov

Search and Discovery.com

... exhibiting dominant directionality will suffice. For example, near surface clay tills contain clay particles which tend to be preferentially aligned...

Section Six: Use of Seismic on Diapiric Structures

New Orleans Geological Society

..., with measurements being made at intervals from total borehole depth to near the surface. The depth to the top of the salt and the seismic velocities...

The Reservoir Architecture of Turbidite Channels: Models and Mysteries, #51044 (2014).

Tim McHargue

Search and Discovery.com

... and sinuous. References Cited Adeogba, A.A., T.R. McHargue, and S.A. Graham, 2005, Transient fan architecture and depositional controls from near-surface...

Quaternary buried valley characterization on the Canadian Prairies using a shear land-streamer

David G. Schieck, Robert B. Hearst

Petroleum Exploration Society of Australia (PESA)

... to soil investigations for near surface shear velocities, soil characterization, and detailed lithology of quaternary valleys within the Canadian...

Abstract: Applications of Consistent Surface Corrections to Seismic Data, by M. T. Taner, J. I. Broaddus; #90978 (1975).

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ABSTRACT: An Improved Technique for Static Correction in a High Resolution Seismic Reflection Data Using Difference In Reflection Times; #90115 (2010)

Collins Chiemeke and Osazuwa B. Isaac

Search and Discovery.com

.... The effect of near surface material, which could make reflection events appear disjointed or deeper than they really are, could be enormous...