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user

Search and Discovery.com

... anisotropic depth migration. In a setting with such under-constrained velocities, geologic constraints are crucial in the interpretation of our velocity...

Application of wave-equation reflection traveltime inversion to the Liwan deep-water streamer data in the South China Sea

Yilin Wang, Liangguo Dong, Chao Huang, Jianming Zhang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

...re-stack shot gather separated with three time windows The WRTI is used to update the background velocity, and the reverse time migration (R...

Discussing Demigration Uncertainties Applied to Active Focused Seismic Monitoring

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

Carbon Capture, Utilization and Storage (CCUS)

... positions through a sensitivity analysis on velocity models, new crucial considerations regarding (de-)migration uncertainties applied to focused seismic...

Electronic Computers Aid in Exploration Decisions and Interpretations: ABSTRACT

Edward J. Assiter

AAPG Bulletin

... performed on computers are: electric-log analysis, log and core correlations, seismogram synthesis, seismic velocity determination, migration charts...

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user

Search and Discovery.com

.... First break travel time analysis also suggested azimuthal velocity variations in the surveyed zone. Such information is important for obtaining a 3D...

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user

Search and Discovery.com

.... First break travel time analysis also suggested azimuthal velocity variations in the surveyed zone. Such information is important for obtaining a 3D...

The SDP Dip Plotter

W. S. Hawes

Oklahoma City Geological Society

... bar along which it is moved to succeeding observation points. If it is desired to use the so-called straight line migration method where the velocity...

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... that this tomography can provide high-resolution anisotropic velocity models and subsequent accurate depth migration images. The method has been successfully applied...

Gas Hydrate Geohazard Assessment in the Northern Gulf of Mexico Using a Vertical Line Array, by Erika Géresi, N.R. Chapman, T.M. McGee, and J.R. Woolsey, Article #40159 (2005)

Search and Discovery.com

Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)

Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman

Search and Discovery.com

... are inherently managed through the Kirchhoff-migration process. This velocity-analysis methodology is illustrated by the screen captures from the velocityanalysis...

Migrated Focus Panels: Focusing Analysis Reconciled with Prestack Depth Migration

F. Audebert, J.P. Diet

CSPG Special Publications

...Migrated Focus Panels: Focusing Analysis Reconciled with Prestack Depth Migration F. Audebert, J.P. Diet 1994 56 57...

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

Search and Discovery.com

...) examined its impact on velocity analysis of 3-D foothills data. Recent work by Operto et al. (2007) has extended frequency-domain waveform modelling...

Abstract: Integration of Geologic Data into Structural Imaging of the Andean Subthrust, Peru; #90224 (2015)

Margaret A. Stratton, Robert Vestrum, and Dennis Ellison

Search and Discovery.com

...-constrained velocity model in this complex-structure environment, we decided to reprocess the lines through to anisotropic depth migration. Geologic...

Know Before You Go!

Lars Zühlsdorff, Trond Haugland

GEO ExPro Magazine

... as determined from seismic velocity analysis, well logs, check shots, or even best guesses. On the modeling side, a technique called wavefront construction...

Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields

J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... as a driver for another tomographic process, for velocity update. The process is named Residual Curvature Analysis (RCA) (Zhou et al. 2003...

Abstract: Suppressing Scattered Energy Effects Using Surface-wave Analysis: An application on Land Seismic Data; #91204 (2023)

Najoud AlOtaibi1, Dmitry Nikolenko

Search and Discovery.com

...Abstract: Suppressing Scattered Energy Effects Using Surface-wave Analysis: An application on Land Seismic Data; #91204 (2023) Najoud AlOtaibi1...

An Overview of Ray Trace Modeling with an Example from the Wichita Mountain Front in Southern Oklahoma

Jan Dodson, Roger A. Young, Kevin Smart

Oklahoma City Geological Society

.... MIGRATION ANALYSIS Although the velocity-depth model (Figure 7) is geologically simplified, the resulting synthetic trace data set is so complex...

Velocity for Pore Pressure Prediction Modeling and Risk Assessment

Selim Simon Shaker

GCAGS Transactions

.... Velocities must be processed for de-multiple, dip move-out (DMO), and prestack migration. Converting the time-velocity pairs to depth-velocity pairs...

ABSTRACT: A Strike 3D Seismic Survey at the Zafar and Mashal Prospective Structures, South Caspian Basin, Azerbaijan: Acquisition, Processing and Interpretation; #90007 (2002)

Christine Krohn, Tom Steinhilber, Judy Amery-Ryland, Jan Mikkelsen, Emin Jafarov, Elena Effendiyeva

Search and Discovery.com

... analysis and modeling, 3D full-fold seismic data were acquired over Zafar-Mashal covering 850 sq. km. The survey was shot in the strike direction...

3D3C seismic exploration for tight sand reservoirs: Case study in western China

Wang QinGeng, Hu Shanzheng, Zhao Rongrong, Xie Wanxue, Zhou Ming, Ren Cong, Jing Longjiang, Luo Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity analysis for converted wave (a) Primary wave migration section (b) Converted wave migration section Figure 6. The VTI anisotropic pre-stack time...

Pre

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Getting it Right the First Time in the Ceduna Sub-Basin: Regional and Target Depth Imaging in a Frontier Setting

Weidi Koh

Australian Petroleum Production & Exploration Association (APPEA) Journal

... of migration velocity to true velocity. When gamma converges towards 1.0, we have achieved optimum gather flatness. Six updates were performed in the VMB stage...

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...

The Challenge of Applying New Technologies to Exploration in a Sub Andean Basins

Marcelo Benabentos, Pedro Muñoz, Juan Uribe, Francisco Ortigosa, Dewi Jones

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... Velocity analysis has evolved from conventional semblance analysis and constant velocity stacks to refined migration velocity analysis, structurally driven...

Possibilities for Seismic Refraction Surveys in Oil-Gas Exploration on Northeast Shelf of Sakhalin Island

V. E. Konov, K. F. Sergeyev, V. V. Argentov, S. K. Bikkenina, V. V. Zhigulev, E. G. Zhil’tsov

Petroleum Geology: A Digest of Russian Literature

... velocities are used here. Figure 4 is a graph showing this relationship. This graph was used as a basis for analysis of velocity models to determine...