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The AAPG/Datapages Combined Publications Database

Showing 33,169 Results. Searched 200,691 documents.

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Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

.../receiver offset, x is the distance from source/receiver midpoint to lateral coordination of scatter point and v is the migration velocity. For simplicity...

2014

Application of finite difference eikonal solver for traveltime computation in forward modeling and migration

Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff

Geological Society of Malaysia (GSM)

... field is required as the input data for Kirchhoff migration and velocity analysis process (Alkhalifah & Fomel, 2010; Zhang & Bording, 2011). It shows...

2021

Least-squares reverse-time migration with angle gathers through point spread functions

Jianyong Bai, Orhan Yilmaz

International Meeting for Applied Geoscience and Energy (IMAGE)

... is illustrated through 2D numerical examples with the inaccuracy of migration velocity models. The examples demonstrate that the method improves the ADCIGs...

2022

Seismic Line Across the Wind River Thrust Fault, Wyoming

W.L. Basham, W.F. Martin

Rocky Mountain Association of Geologists

... horizontal resolution of the shallow velocity effects. In processing, migration before stack might be useful because of the complex raypath problems...

1985

Abnormal Formation Pressures: Recognition, Distribution, and Implications for Geophysical Prospecting, Brazoria County, Texas

Edward T. Flanigan

GCAGS Transactions

... mis-ties if a single velocity function is used for time-depth conversion throughout the area. These mis-ties result from lateral variations in acoustic...

1981

An Experimental Study of Secondary Oil Migration (1)

LIONEL CATALAN, FU XIAOWEN, IOANNIS CHATZIS, and FRANCIS A. L. DULLIEN

AAPG Bulletin

... the oil-brine front advances. Migration rate is not necessarily the same as the velocity of the oil in the established oil pathways. However, we did...

1992

Kinematics of Sand Avalanches Using Particle-Image Velocimetry

Michael Tischer , Marcus I. Bursik , E. Bruce Pitman

Journal of Sedimentary Research (SEPM)

... is a necessary condition for the occurrence of these flows. We measured for the first time the surface-velocity field in avalanches propagating at angles...

2001

Representation of Bed Configurations in Depth-Velocity-Size Diagrams

John B. Southard

Journal of Sedimentary Research (SEPM)

...Representation of Bed Configurations in Depth-Velocity-Size Diagrams John B. Southard 1971 Vol. 41 No. 4. (December), Use of depth and mean velocity...

1971

Abstracts: Synthetic Microseismic Files; #90173 (2015)

J. Wong, P. M. Manning, L. Han, and J. B. Bancroft

Search and Discovery.com

... velocity analysis for lithology discrimination: Geophysics, 54, 1566-1574. Chambers, K., Brandsberg, S., Kendall, J.M., and Rueda, J., 2008. Testing...

2015

Santos Vision: Innovative Seismic Data Processing in a Super Giant Oil Basin

Hermann Lebit, Sriram Arasanipalai, Jeff Tilton, Pascal Ollagnon, PGS

GEO ExPro Magazine

... represents the largest Reverse Time Migration (RTM) and Kirchhoff prestack depth migration (KPSDM) successfully completed by the industry. Extension...

2019

Elastic FWI imaging of a complex presalt structure using NATS data

Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno

International Meeting for Applied Geoscience and Energy (IMAGE)

...-frequency velocity models for migration. Recently, direct output of the subsurface image has been made possible by FWI Imaging (Zhang et al., 2020). FWI...

2023

Abstract: Towards an Optimal Workflow for Azimuthal AVO; #90171 (2013)

David Gray and Shangxu Wang

Search and Discovery.com

.... Clair, C., 2008, Wide azimuth imaging and azimuthal velocity analysis using offset vector tile prestack migration, First Break, 26, 9, 103-107. http...

2013

Q-compensated least-squares reverse time migration by considering velocity and Q perturbations

Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...Q-compensated least-squares reverse time migration by considering velocity and Q perturbations Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li Q...

2022

3.4 Detached Sediments: 3.4.1 Decollement Tectonics (A-Subduction): Utah-Wyoming Overthrust Line

B. D. McClellan and J. A. Storrusten

AAPG Special Volumes

... to allow confidence in the model, it can be used as a velocity distribution for seismic migration. An example of this is shown in Figure 6...

1983

Abstract: Applicability of TTI RTM to Structured Land Datasets; #90172 (2014)

Charles Ursenbach, Yan Yan

Search and Discovery.com

... of the crossline displayed in Figure 2. Details of the migrations An anisotropic velocity model was developed using Residual Curvature Analysis (RCA...

2014

ABSTRACT: Efficiency of high-frequency seismic survey on the Black Sea shelf in the processing of seismic data; #90109 (2010)

Iuliia Miasoiedova

Search and Discovery.com

... velocity noises, and has improved the correlation of horizons (for further the velocity analyses and migration).The FKFILT program, which performs F-K...

2010

Abstract: An Azimuthal-AVO-Compliant 3D Land Seismic Processing Flow; #90171 (2013)

David Gray, Darren Schmidt, Nirupama Nagarajappa, Charles Ursenbach, and Jon Downton

Search and Discovery.com

... azimuthal velocity variations (left) and after application of azimuthal velocities (right). Prior to AVO analysis, it is important to remove the effects...

2013

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

...-existing wells, such as 60 km to Frankenstein 1, 15 km to Kidson 1 and 75 km to Patience 2, the interval velocity model of depth migration derived...

2021

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)

... provide a high-precision velocity model for pre-stack depth migration. Introduction With the advancement of the exploration technology and seismic...

2024

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

... by rapid lateral velocity changes, velocity pull-up, etc. and (b) the necessity of using a depth migration process versus time migration plus...

1995

A Case Study on the Challenges Overcome in the Merge of Seven On-Shore 3-D Surveys of Varying Acquisitions in Huila Department, Colombia

Henry Maldonado, Timothy Brooks, Lilia Maria Saavedra, Gilbert Gutierez, Albeiro Saavedra, Peter Watterson

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... is that all statics and velocity analysis is done on the final output grid for the merged data. However, due to the poor signal to noise ratio...

2009

Constrained tomography for improved presalt elastic full-waveform inversion

Yaofeng He, Xu Li, Young Ho Cha, Partha Routh, Inma Dura-Gomez, Carey Marcinkovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... building (VMB) is a critical step for accurately imaging subsurface structures with seismic prestack depth migration. More importantly, the derived velocity...

2022

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