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The AAPG/Datapages Combined Publications Database

Showing 17,696 Results. Searched 200,357 documents.

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The Relationship Between a Grain's Settling Velocity and Threshold of Motion Under Unidirectional Currents

Paul D. Komar, Karen E. Clemens

Journal of Sedimentary Research (SEPM)

... of threshold, and a pivoting analysis of grain entrainment can yield a relationship between the threshold shear velocity u*t and settling velocity wm...

1986

Spectrum Extrapolation to Increase Resolution: ABSTRACT

D. G. Stone

AAPG Bulletin

...--continuous average velocity, interval velocity, and amplitude--have been widely studied. The extraction of higher frequencies has been less studied...

1973

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

...An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement Andy Furniss PESA Journal No. 27 (1999...

1999

Recent Experiences with Seismic Imaging and Velocity Analysis: Abstract

John L. Toldi, Nathaniel G. Tilander

Indonesian Petroleum Association

...Recent Experiences with Seismic Imaging and Velocity Analysis: Abstract John L. Toldi, Nathaniel G. Tilander 1998 350 350 This paper presents recent...

1998

How Reliable Is The Negative Anisotropy In Carbonate Rocks? - Offshore East Java Basin Case Study

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

Indonesian Petroleum Association

.... Accurate anisotropy estimation is a key factor for velocity model updating in carbonate platforms. For most cases carbonate rocks are essentially isotropic...

2018

Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D

Nader C. Dutta, Sherman Yang, Jianchun Dai

Indonesian Petroleum Association

... extra steps that are currently used to convert the migrated gather and velocity back to time domain to do further velocity analysis for pore pressure...

2012

Relationship of Velocity Defined Accuracy to Phi Defined Accuracy in Settling Tubes: METHOD PAPER

C. L. McCormick, Eric S. Posmentier

Journal of Sedimentary Research (SEPM)

... size and settling velocity: Jour. Sed. Petrology, v. 41, p. 7-18. GIBBS, R. J., 1972. The accuracy of particle size analysis utilizing settling tubes...

1980

Volume-constrain first arrival tomography based near surface modeling and its application

Naijian Wang, Zhihui Yan, Qingpo Ma, Wei Wu, Yunfei Zu, Yonggui Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

... Yunfei, Hu Yonggui,BGP,CNPC. Seis-ATI, H.B. Summary In seismic exploration, high-precision near-surface velocity model is required for real-surface...

2022

Application of Sequential Offset Technique in Full Waveform Inversion; #42598 (2025)

Binggang Wang

Search and Discovery.com

..., Hebei, China Introduction Full waveform inversion technology is a precise modeling technique for velocity inversion that is becoming increasingly...

2025

-- no title --

user1

Search and Discovery.com

... (RMS) velocity from pre-stack time migration to interval velocity in the depth domain. However, accurate RMS velocity analysis in the shallow layers...

Unknown

A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... imaging in thrust belt environments Ron Schmid*, Brian Link, Patrick Butler; Kelman Seismic Processing SUMMARY A novel, migration velocity analysis...

1997

Abstract: Impact of Pore Types and Mineralogical Composition on Seismic Wave Velocity of Khuff Carbonates, Central Saudi Arabia;

Moaz Salih, John Reijmer, Ammar El-Husseiny, Jack Dvorkin, Khalid Al-Ramadan

Search and Discovery.com

... velocity decreases with increasing porosity. Our analysis showed that the permeability and velocity are not a function of the total porosity only...

Unknown

Depth correction using velocity for structure calibration at Leviathan Field, offshore Israel

Yijie Zhou, Brad Christensen, Lin Christianson

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and then domain converted to depth with corrected velocity field, a more detailed workflow is shown in Figure 2. The velocity analysis during modeling...

2023

North West Shelf 3D Velocity Modeling

Laureline Monteignies, Cedric Magneron, Natalia Gritsajuk

Petroleum Exploration Society of Australia (PESA)

... is to calibrate it to the wells in order to get the final velocity model. For a regional calibration, a 3D local variographic analysis (M-GS approach...

2016

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

...Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014) J. Patrick Butler and Randy Kolesar AAPG Search and Discovery Article #90187...

2014

4D image velocity scan to improve the 4D quantitative interpretation

Mohamed Hatab, Colin MacBeth

International Meeting for Applied Geoscience and Energy (IMAGE)

... and focusing, velocity model versus well sonic, mis-tie analysis, and also image stack. All of these QCs are subjective and more qualitative. Figure 2: 4D...

2022

Improved channel imaging using full-waveform inversion for deepwater Lingshui giant gas reservoir in South China Sea

Tao Wu, Dun Deng, Zijing Gong, Jie Cui, Rong Li, Lianlian Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... to mitigate cycle-skipping and obtained an accurate low-frequency background velocity trend. Based on an analysis of the data, this was the lowest...

2024

Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)

Emil Blias

Search and Discovery.com

... constrained hyperbolic velocity analysis based on coherence semblances. The distinguishing feature of this step is that one has to manually pick...

2015

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