Pressure prediction using converted shear waves from OBN data: A rock physics approach

Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser, Terence Krishnasami

International Meeting for Applied Geoscience and Energy (IMAGE)

... such as in shallow sedimentary sections. Introduction Pore pressure prediction in industry generally uses P-wave velocity-based prediction methods...

Possible Mechanism for Concentration of Brines in Subsurface Formations

J. D. Bredehoeft , C. R. Blyth , W. A. White , G. B. Maxey

AAPG Bulletin

... of the linear differential head in the mathematical development of the model given above. The equation for inward fluid velocity, for the case of a constant...

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the migration velocity model introduce phase errors, hampering proper wavefield focusing (Xie et al., 2016), and fully mapping near-surface complexities...

A smart merge workflow for dual-azimuth images

Xu Li, Diwi Snyder, Dez Chu, Inmaculada Dura-Gomez

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismic datasets for migration and model building. A more natural factor is that velocity model(s) can never be perfect, and residual model errors along...

Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

... of the fraccing process. The velocity is assumed to be constant between the source and receiver locations. In a similar application, unstable geological...

Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

... of the fraccing process. The velocity is assumed to be constant between the source and receiver locations. In a similar application, unstable geological...

How to Increase the Bandwidth of your Plains Data

Search and Discovery.com

... and little uplift is expected from more advanced migration technologies due to the simplicity of the velocity field. For this reason, there have been...

Bed Configurations

J. C. Harms, J. B. Southard, R. G. Walker

Special Publications of SEPM

... for elliptical cases are qualitatively shown. similar to those of the circular case, but the shape of the trajectory and the history of velocity variation...

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

Burkhard Buttkus

Geological Society of Malaysia (GSM)

... approach to solve the different problems is a combination of the extraction of the physical parameters, especially interval velocity and acoustic...

The Use of Synthetic Sonic Logs Derived From Seismic Data in the Interpretation of Stratigraphic Variation in Cretaceous Carbonates of the North Field Area, Qatar: Chapter 14

Helena S. Aves, Daniel M. Tappmeyer

AAPG Special Volumes

... as the "velocity change" boundary. In the case of the K-1 subzone the variation of interval velocity across this boundary is a gradual change fro approximately...

Growth Fault-Bend Folding at Southeast Lost Hills, San Joaquin Valley, California

Donald A. Medwedeff

AAPG Bulletin

... response of this complex velocity structure is demonstrated using inverse modeling (IMP) and wave-equation migration (WEM) programs developed by Texaco...

Pre

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ABSTRACT: 3-D Depth Migration of the Northern Monagas Trend: Eastern Venezuela; #90013 (2003)

Omar Uzcategui, Elieser Perez, Carlos Marquez, Ricardo Plata

Search and Discovery.com

... and misties. Frequently, depth migration has been used to solve imaging problems and seismic misties, however, in complex areas with strong lateral velocity...

A novel viscous pure-acoustic wave equation and its numerical implementation in 3D TTI media

Long Wu, Yixian Xu, Shigang Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

... proposed (Carcione et al., 1988; Bai et al., 2014; Zhu et al., 2014; Hao and Alkhalifah, 2019). The constant Q model and standard linear solid (SLS) model...

The Influence of Fault Permeability on Single-Phase Fluid Flow Near Fault-Sand Intersections: Results from Steady-State High-Resolution Models of Pressure-Driven Fluid Flow

Stephan K. Matthai , Stephen G. Roberts

AAPG Bulletin

... on the spatial variation in fluid pressure in model 4. Vector length scales linearly with flow velocity, but the size of the vector head is constant. End_Page...

Abstract: Pre-Stack Depth Imaging and Horizontal Velocity Analysis of Gas Hydrates off SW Taiwan, by B. J. Yang and T. K. Wang; #90090 (2009).

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Distinguishing Fracture Conductivity and Fracture Flux: A Systematic Investigation of Individual Fracture Contribution to Well Productivity

Aaditya Khanal, Ruud Weijermars

Unconventional Resources Technology Conference (URTEC)

... with CAM Step 5: CAM Solves Particle Paths Step 4: CAM Solves Velocity Field Step 6: CAM Solves DRV Using TOFC Figure 5. Case A. Step 1: Model...

Abstract: Pre-Stack Depth Migration from Regional 2-D Seismic Surveys, a Cost and Time Effective Way of Optimising Structural Detail, by Chris Benson and Dane Southward; #90081 (2008)

Search and Discovery.com

Eolian Sand Control

Richard C. Kerr, John O. Nigra

AAPG Bulletin

... sand is a constant drain on manpower and transportation resources. The cost of eliminating or stabilizing sand becomes then a frequently recurring...

Predicting the depth of viscous stress peaks in moving salt sheets: Conceptual framework and implications for drilling

Ruud Weijermars and Martin P. A. Jackson

AAPG Bulletin

.... The four basic flow types analyzed are Couette, Poiseuille, no-slip squeezing, and free-slip squeezing flow. The analytical formulae specify velocity...

Fracture Characterization Based on Attenuation Estimation From Seismic Reflection Data Using Well-Log-Based Localized Spectral Correction

Fangyu Li, Tao Zhao, Tengfei Lin, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... estimation is a promising way to characterize fracture system. Existing methods for seismic attenuation are usually based on “Constant Q” model, which...

Discussing Demigration Uncertainties Applied to Active Focused Seismic Monitoring

Baptiste Penot, Bruce Webb, Michele Buia, Gianluca Dell’Elce

Carbon Capture, Utilization and Storage (CCUS)

.... Such models are however subject to uncertainties generated during the migration process. In this real case study, velocity model impacts...

A Report on the Renaissance of Gravity in the Deep Water Gulf of Mexico: A Practical View of Integration Methods

Brian S. Anderson, Mark E. Weber, John E. Bain

Houston Geological Society

... the seismologists to refine their migration velocity model for the structure, and as a result, refine the seismic image through reprocessing the data using...

ELECTRONIC COMPUTERS AID IN EXPLORATION DECISIONS AND INTERPRETATIONS

E. J. Assiter

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... and migration data for application to maps * 12. Plot out depth maps and cross-sections using a velocity function, gradient or surface Quite obviously...

Abstract: Ground penetrating radar and seismic methods applied to detection of windows in the clay aquitard overlying the Fredericton Aquifer

J. A. Paasche, T. Gilman, K. E. Butler

Atlantic Geology

... that can be used to determine the subsurface features at a site. These methods utilize changes in material properties (e.g. density, velocity, dielectric...