Graph-space optimal transport-based 3D elastic FWI for near-surface seismic applications

Dmitry Borisov, Richard D. Miller, Shelby L. Peterie, Julian Ivanov, Anthony M. Hoch, Steven D. Sloan

International Meeting for Applied Geoscience and Energy (IMAGE)

... are compared for the synthetics calculated in the models with Vs varying within the 5-8 m deep layer. The source is located on the ground surface...

Applications of Shallow High-Resolution Seismic Reflection to Environmental Problems

Richard D. Miller, William E. Doll, Carlene Merey, William E. Black

Environmental Geosciences (DEG)

...-effective method of imaging geologic targets relevant to near-surface site classification and eventual remediation. Reflection proved effective...

Abstract: Elastic Finite-difference Modeling for Testing Acquisition and Processing Methods; #90187 (2014)

Peter Manning, Joe Wong, and David Henley

Search and Discovery.com

...). The models include an overburden and a weathered layer with very low P and S velocities and varying thicknesses. The common source gathers of the vertical...

Effects of near Surface Lithology on Velocity Modelling and Time„Depth Relationships in the Cooper„Eromanga„Lake Eyre Basin

Anna Manka, Glen Buick, Rob Menpes, Luke Gardiner, Cameron Jones, Khalid Amrouch

Australian Petroleum Production & Exploration Association (APPEA) Journal

... velocity model of the near surface. Variations of layer thickness and seismic velocity were input into Monte Carlo simulations to investigate sensitivities...

Abstracts: A Practical Approach for Estimating Receiver Statics in 2D/3C Seismic Data Processing; #90173 (2015)

Dumitru Ion and Mike Galbraith

Search and Discovery.com

... for the horizontal components. The near surface, both in seabed and in land acquisition, is frequently associated with low, laterally varying shear-wave...

Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data

Walt Ritchie and Mihai Popovici

Search and Discovery.com

... introduced by the near-surface conditions in the area provided the basis from which a depth-imaging solution could be initiated. Model Building Process...

First-Arrival Traveltime Inversion in the CMP Domain: Method and Application

Search and Discovery.com

..., and Zhu et al., 2000) which derives the near-surface velocity model based on traveltime reconstruction. The other approach is to map apparent velocities...

Gravity and Magnetics in South East Asia - Modern Applications

Brian S. Anderson, John E. Bain, Harald van Hoeken, Mark E. Weber

Southeast Asia Petroleum Exploration Society (SEAPEX)

... model An initial 2D depth model is generated using the seismic derived salt geometry and sediment velocities. Laterally varying density data obtained...

ABSTRACT: Inferring Subsalt Structures from Suprasalt Structures: Results from Numerical Modeling of Extension Around Salt Sheets, by Daniel D. Schultz-Ela; #91020 (1995).

Search and Discovery.com

Three Dimensional Seismic Inversion and Neural Net Impedance Facies Map in Reservoir Characterization

Sunit K. Addy, Jim Hallin

GCAGS Transactions

... calculated from the regular seismic data. These include horizon amplitude, near surface geometry, dip, azimuth and their derivative and others. The horizon...

Abstract: Applications of Consistent Surface Corrections to Seismic Data

M. Turhan Taner, James I. Broaddus

GCAGS Transactions

... the basis for geophysical interpretation. These properties, however, are usually masked by irregularities originating on or near the surface. Such irregular...

The Preparation of Seismic Depth Maps in Oil Exploration

A. E. Pallister

CSPG Bulletin

.... 706-724. Baillie, W., and Rozsa, T., 1956, "Topographic Effect on Near-Surface Velocities," Geophysics, Vol. XXI, No. 4, pp. 960-968. White, R. J...

Determination of Vp, Vs, glacial drift thickness and Poisson's ratio at a site in Jay County, Indiana, using seismic refraction and multichannel analysis of surface wave (MASW) analysis on a common data set

Search and Discovery.com

Application of Geophysical and Geotechnical Methods to Determine the Geotechnical Characteristics of a Reclaimed Land; #70255 (2017)

Olusegun O. Adewoyin, Emmanuel O. Joshua, Marvel L. Akinyemi

Search and Discovery.com

... Abstract Near-surface seismic refraction method and electrical resistivity methods were used to characterize the subsurface of a site reclaimed from...

Seismic HC Reservoir Prediction: A (Critical) Review on the Determination of Lithological Parameters from Seismic Data

Burkhard Buttkus

Geological Society of Malaysia (GSM)

..., therefore, try to make use of converted ,-,:aves in offshi9f:e areas. • Lateral variations of near surface velocities are much larger for S-waves than for P...

Enhance near-surface velocity tomogram using land-streamer data

Sherif M. Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

... they proved that a bad near-surface modeling could produce a wrong imaging of the deeper layer, the error in locating the deep layers could be as large...

Pitfalls in Seismic Interpretation

Paul M. Tucker, Howard J. Yorston

Pacific Section of AAPG

... generated at the surface, at the base of a low velocity layer, by a channel, or by standing waves within a near-surface or water layer. The simple multiple...

Tomography for Near

Search and Discovery.com

Seismic Reflection Measurements of Northwest Australian Margin and Adjacent Deeps

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

AAPG Bulletin

... indicate the near-surface sediment types. VERTICAL REFLECTION PROFILES Line drawings of the seismic-reflection profiles recorded along the traverses...

Relative Importance of Processes That Govern the Generation of Particulate Hyperpycnal Flows

M. Felix, J. Peakall, W.D. McCaffrey

Journal of Sedimentary Research (SEPM)

... the stratification is different than in the salt-wedge estuary. In a fjord there is a fresh-water layer near the surface which overlies the deeper water...

Problems in Reflection Seismology

G. H. Westby

Tulsa Geological Society

... to give velocities slightly higher than normal. It should be used only in areas where the plane of the surface and subsurface are nearly parallel...

About the importance of the horizontal components of the wavefield for a well-constrained velocity inversion: 3-C versus 1-C inversions

Isabelle Dumont, Sophie Beauprêtre, Anaïs Lavoué, Dan Hollis, Chloé Gradon

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 198, no. 3, 1514–1525. Mordret, A., M. Landès, N. M. Shapiro, S. C. Singh, P. Roux, and O. I. Barkved, 2013, Near-surface study at the Valhall oil field...

Refraction Profiles Over the Southern Rocky Mountain Trench Area of British Columbia

A. T. Lamb, D. W. Smith

CSPG Bulletin

... inline refraction profiles and seven cross spreads oriented parallel to the Trench. Excluding a small amount of near surface weathering material...

EXPLORATION PROBLEMS OF THE WILLISTON BASIN*

K. E. BURG

Montana Geological Society

... buried beneath 150 feet of normal high velocity near-surface material. In places this buried low velocity layer extends to depths greater...

Integrated Surface-Downhole Acquisition Geometries … The Way to Higher Detailed Reservoir Investigation

A.A. Tabakov, K.V. Baranov

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of principal limitations. Surface seismic (especially when carried out in complicated topographic conditions) suffers from near-surface uncertainties...