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The AAPG/Datapages Combined Publications Database

Showing 8,086 Results. Searched 200,357 documents.

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Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

.... Using this dataset, we demonstrate the efficacy of Waveform Tomography in determining both the macro-velocity model and near-surface velocities...

2013

Abstract: Performance of Seismic Arrays in the Presence of Weathering Layer Variations; #90254 (2016)

Jubran Akram, Abdullatif A. Al-Shuhail

Search and Discovery.com

... Solutions King Fahd University of Petroleum and Minerals Abstract Near-surface layer variations can degrade the desired response of seismic arrays...

2016

The Evolution of FWI and its Perceived Benefits

Tony Martin, Andrew Long

Australian Petroleum Production & Exploration Association (APPEA) Journal

... for robust FWI application: for resolving near-surface features and reducing seismic imaging uncertainty in areas with complex overburden heterogeneities...

2019

The Role of Seismic in Play Type and Prospect Development: Eastern Canning Basin

Ted Jacobson

Petroleum Exploration Society of Australia (PESA)

... to noise ratio of the seismic data, but averages out lateral velocity changes in the near-surface. The smoothing effect on weathering velocities reduces...

1984

Surface-Measured Resistivity May Be Key to Successful Stratigraphic Trap Exploration - A Recent Discovery Using Electromagnetic Imaging

M. Tahsin Tasci, John M. Zordan

West Texas Geological Society

..., Illinois Petroleum 102, 16–17. Horvitz, L., 1980, Near-surface evidence of hydrocarbon movement from depth, in Roberts, W. H., and Cordell, R. J., (eds...

1998

Understanding the Root Cause of Poor Seismic Data Through Modelling, #41912 (2016).

Anastasia Poole, Peter V. Baaren

Search and Discovery.com

... to support near-surface model building and the generation of realistic synthetics. By varying the parameters of the Earth model and comparing synthetic...

2016

Petrology and Origin of Phosphorites

G. Donald Emigh

Utah Geological Association

... similar fields in the southeastern United States. (5) Surface and near surface weathered areas of all marine phosphorites - examples, Phosphoria...

1967

Electromagnetic Imaging in Exploration for Morrow Fields

M. Tashin Tasci, John M. Jordan, George V. Keller

Rocky Mountain Association of Geologists

... by a factor of 10. The overlying layer (II) also has increased resistivity, whereas the near-surface layer (III) generally exhibits a small decrease...

1997

Response and Recovery of an Estuary Following a River Flood

Maynard M. Nichols

Journal of Sedimentary Research (SEPM)

... hours. As near-surface water became fresher, the surface layer thickened, the halocline deepened and stratification became intense (+3 day, Fig. 4A, 5...

1977

Foundation Settlement Determination: A Simplified Approach; #70256 (2017)

O. O. Adewoyin, M. Omeje, E. S. Joel, O. T. Kayode

Search and Discovery.com

... of the geologic formation that compose the near surface layer. It was observed in S 2 and S 3 that the depth of settlement is high, this may as a result...

2017

Deep learning seismic full-waveform inversion and transient EM joint inversion for near surface velocity modeling

Daniele Colombo, Ernesto Sandoval-Curiel, Ersan Turkoglu, Weichang Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... network (U-Net) trained with the randomly-generated models is applied to the dimensionallyreduced VSG to predict the complex 3D near surface velocities...

2022

erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).

Jubran Akram, Abdullatif A. Al-Shuhail

Search and Discovery.com

... ([email protected]) King Fahd University of Petroleum and & Minerals, Saudi Arabia ([email protected]) 2 Abstract Near-surface layer variations can...

2016

Modern Sediment Dynamics at the Shelf-Slope Boundary off Nova Scotia

Philip R. Hill, Anthony J. Bowen

Special Publications of SEPM

... observed on the shelf do not correlate with higher bottom current slope to velocities either at the shelfbreak or on the strong near surface currents flow...

1983

Abstracts: Implicit Preconditioning for Least-squares Nonstationary Phase Shift; #90173 (2015)

Marcus R. Wilson and Robert J. Ferguson

Search and Discovery.com

... on the phase shift method of Gazdag (1978). Acquired seismic data is extrapolated recursively through the near surface by weighted-damped least squares...

2015

Wilcox Depth Prediction at Katy Field, Waller County, Texas: Problem and Solution: ABSTRACT

A. M. Olander

AAPG Bulletin

... in structurally low as a result of incorrect predictions of both near-surface and post-Wilcox velocities. Additional studies indicated that the Sparks well...

1985

Near-Surface Characterization for Seismic Exploration Based on Gravity and Resistivity Data; #41892 (2016)

Jan Mrlina

Search and Discovery.com

...Near-Surface Characterization for Seismic Exploration Based on Gravity and Resistivity Data; #41892 (2016) Jan Mrlina Near-Surface Characterization...

2016

Recent Applications of Turning

Search and Discovery.com

N/A

Effects on the precision of tomography near-surface model with single receiver

Baohua Yu, Yongguo Wu, Haili Wang, Faquan Feng, Quanbin Yang, Lixin Ma

International Meeting for Applied Geoscience and Energy (IMAGE)

...Effects on the precision of tomography near-surface model with single receiver Baohua Yu, Yongguo Wu, Haili Wang, Faquan Feng, Quanbin Yang, Lixin Ma...

2024

Multidomain simultaneous joint inversion for near-surface characterization A case study from onshore US

Nate Johnson, Ali Ahmed Hussein Mohamed, Zhanna Jackson, Seth Riseman, Kevin Douglas

International Meeting for Applied Geoscience and Energy (IMAGE)

... with better coherency and more laterally stable amplitudes were observed. The SJI near-surface model was merged into the initial depth imaging velocity...

2023

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