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The AAPG/Datapages Combined Publications Database

Showing 33,130 Results. Searched 200,357 documents.

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Abstracts: General Anisotropic Travel Times … A Purpose Built Solution; #90173 (2015)

R. Phillip Bording

Search and Discovery.com

.... In Figure 2a the constant velocity first arrival travel time curves are shown, the velocity used here is isotropic and 2550m/s. As indicated all the plot...

2015

I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... on the surface and generated a complex waveform. Part of the expanding wave train struck the shore, in this case a large rock, and was reflected...

1981

Compensating for Seismic Absorption for Orthogonal Shooting Field Data: A Case Study on NW Tunu Area, Indonesia

Doddy Iqbal Biramandita, Vishal Kumar, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam, Didiek Bhudy Prabowo

Indonesian Petroleum Association

..., M.A., 2015, Resolving Seismic Attenuation Issue Through Q-migration, a Case Study in Sisi-Nubi Field, Indonesia: ThirtyNinth Annual Convention...

2016

Abstract: New Approach to Finite-Difference Memory Variables by Using Lagrangian Mechanics; #90187 (2014)

Wubing Deng and Igor Morozov

Search and Discovery.com

... in seismic exploration, including acquisition system design, seismic migration, interpretation, and full waveform inversion. In the last...

2014

Traction-Carpet Stratification in Turbidites-Fact or Fiction?

Richard N. Hiscott

Journal of Sedimentary Research (SEPM)

...), and a linear velocity distribution (du/dy constant). In this situation, a slow decrease in shear stress results in deposition from the base to the top...

1994

Origins of overpressure in the central Xihu depression of the East China Sea shelf basin

Jun Li, Jingzhou Zhao, Zhiqiang Hou, Shuping Zhang, and Mengna Chen

AAPG Bulletin

... constant when the velocity increases (Zhao et al., 2017). This is inconsistent with the characteristics of the overpressure zone in the Pinghu Formation...

2021

Abstract: Depth imaging of seismic data from structurally complex areas in Canada

Larry Lines, Jinming Zhu

Atlantic Geology

.... Johns, Newfoundland AJB 3X5, Canada Recent geophysical research has made widespread use of depth migration and velocity analysis in our efforts...

1997

Seismic Modelling in 3D for Migration Testing

Search and Discovery.com

... that underlies modern migration methods. The Kirchhoff method of seismic modelling is well described in the literature (e.g. Shearer, 1999) and, for a constant...

2013

The Evaluation of an Oil Discovery: How to Locate the Second, Third and Fourth Wells

Parke A. Dickey

Southeast Asia Petroleum Exploration Society (SEAPEX)

... t If a density log is not available, density can be neglected as it usually changes less than velocity. In this case, equation (4) simplifies to: (5...

1980

-- no title --

user

Search and Discovery.com

... of Bouguer anomaly) for improving velocity model building and the corresponding depth-domain seismic image. Effective depth imaging through migration...

Unknown

-- no title --

user

Search and Discovery.com

... of Bouguer anomaly) for improving velocity model building and the corresponding depth-domain seismic image. Effective depth imaging through migration...

Unknown

Quantitative Modeling of Secondary Migration: Understanding the Origin of Natural Gas Charge of the Haynesville Formation in the Sabine Uplift Area of Louisiana and Texas

Lauri A. Burke

GCAGS Journal

... is assumed to be an appropriate model for velocity calculations. For secondary migration occurring vertically across stratigraphic layers, a harmonic...

2021

Dune Migration on Macrotidal Flats Under Symmetrical Tidal Flows: Garolim Bay, Korea

Hee J. Lee, Hyung R. Jo, Yong S. Chu

Journal of Sedimentary Research (SEPM)

... fluctuations can be directly interpreted as resulting from migration of the dunes with observed, constant dimensions rather than representing the variable...

2006

Simple Approximations for Estimating Quickly the Motion and Timing of Salt Diapir Rise, Overhang Development, and Associated Thermal Anomalies from Present Day Observations: Case Histories from the Gulf of Mexico and Danish North Sea

I. Lerche , R. O. Thomsen

GCAGS Transactions

... migration flow speed of hydrocarbons. However in the case of vertical migration, sediments underlying the sealing Cretaceous chalk went through an oil...

1993

One-way full-waveform inversion using frequency-domain model extension

Rustam Akhmadiev, Biondo Biondi, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... be computed accurately and used to update the velocity model. These methods rely on solving for extended reflectivity using extended least-squares migration...

2024

Sparsity and Continuity Enhancing Seismic Imaging, #41532 (2015).

Peyman P. Moghaddam, Felix Herrmann, and Chris Stolk

Search and Discovery.com

... are promoted as part of this optimization. Our method is tested with a reverse-time 'wave-equation' migration code simulating the acoustic wave...

2015

Gulf of Mexico overpressure and clay diagenesis without unloading: An anomaly?

Richard W. Lahann

AAPG Bulletin

... unloading in overpressured samples that results in substantial velocity reduction; in this case, the velocity shift is relative to a chemical-compaction...

2017

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

The Suitable Method in Generating True Depth Structure Maps to Eliminate Wonocolo Push-Down Effect on Seismic Data and Its Impact on Prospect Evaluation, North Madura Platform, East Java Basin

Haryono Haryanto, Rizki Krishna Pratama, Riaz Alai, M. Afiq B. Mokhtar, Pongga Wardaya, Yonghe Guo, Jun Wang

Indonesian Petroleum Association

... A Pretty Picture : Core Laboratories Company, CSEG Recorder. Fomel, S., 2003, Time-Migration Velocity Analysis by Velocity Continuation: Geophysics, p...

2018

The Fate and Persistence of Aromatic Hydrocarbons Dissolved in Groundwater: Results from Controlled Field Experiments

J. F. Barker, E. A. Sudicky, C. I. Mayfield, R. W. Gillham, G. C. Patrick, K. L. Berry-Spark

Pacific Section of AAPG

.... 22, p. 2069-2082. Sudicky, E. A., J. A. Cherry, and E. O. Frind, 1983, Migration of contaminants in groundwater at a landfill: a case study, 4...

1989

Mapping Stratigraphic Traps with Electrical Transients

Jamil Azad

CSPG Bulletin

... and their dielectric constant, frequency and resistivity will control the velocity. Figure 3 provides the relationship between velocity of the waves, resistivity...

1977

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