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The AAPG/Datapages Combined Publications Database

Showing 17,714 Results. Searched 200,693 documents.

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Cross-Borehole Tomography in Development Geology: Part 7. Geophysical Methods

J. H. Justice, M. E. Mathisen, J. R. Bulau, A. A. Vassiliou

AAPG Special Volumes

..., however, between cross-borehole seismic velocity images and sonic logs. Sonic logs usually measure velocity of sound in rocks at very high frequencies...

1992

An Assessment and Calibration of Formulations for Bagnold's Bedload Equation

J. Hardisty

Journal of Sedimentary Research (SEPM)

... is an efficiency factor which depends upon the mean flow velocity and the grain size of the bed (Yalin, 1972). The actual determination of is the problem which...

1983

Abstract: Improving the Statics Solution through De-migration: A Canadian Foothills A-PSDM Case History; #90172 (2014)

Jiwu Lin, Sylvestre Charles, Josef Heim

Search and Discovery.com

... process. The error was only discovered in the middle of the depth imaging phase as the tomography velocity model building iterations were no longer...

2014

Adjustments of Velocity Logs to Tie Geophone Surveys

Warren Hicks

Oklahoma City Geological Society

...Adjustments of Velocity Logs to Tie Geophone Surveys Warren Hicks 1961 135 138 Kokesh, F. P. and Blizard, R. B.: Geometric Factors in Sonic Logging...

1961

Enhancing Resolution and Improving Imaging: The New Dual-Sensor Seismic Streamer

Natasha Hendrick, Andrew Long, Rune Tenghamn

Indonesian Petroleum Association

... and the vertical component of the particle velocity can be acquired using co-located pressure and velocity sensors, it is then possible to combine these datasets...

2008

Full Waveform Inversion: Early Start of Model Building Process to Resolve the Complex near Surface Model in the Exmouth Sub-Basin, North West Shelf Australia

Lianping Zhang, Haryo Trihutomo, Yuelian Gong, BeeJik Lim, Alexander Karvelas

Australian Petroleum Production & Exploration Association (APPEA) Journal

... velocity model from a smooth starting model. FWI derived an accurate and detailed near surface model, which subsequently benefitted the common image...

2018

Deep Dix: Enhancing interval velocity model estimation through adversarial regularization

Joseph Stitt, Robert Clapp, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

...Deep Dix: Enhancing interval velocity model estimation through adversarial regularization Joseph Stitt, Robert Clapp, Biondo Biondi Deep Dix...

2023

Date-driven seismic velocity inversion via deep residual U-net

Yiran Huang, Chuang Pan, Qingzhen Wang, Jun Li, Jianhua Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

...Date-driven seismic velocity inversion via deep residual U-net Yiran Huang, Chuang Pan, Qingzhen Wang, Jun Li, Jianhua Xu Date-driven Seismic...

2024

Imaging challenges at Gulf of Papua (PNG) and their solutions through high-end imaging technology

Zongying Gong, Subhash Chandra, Xiaodong Wu, Yajing Li, Min Zhi, Michael Szczepaniak, Barry Hung

Petroleum Exploration Society of Australia (PESA)

... and a mud volcano makes velocity model building and seismic imaging challenging. The image underneath such shallow gas anomalies suffers from...

2019

Effects of Sphericity, Roundness, and Velocity on Traction Transportation of Sand Grains

William J. Morris

Journal of Sedimentary Research (SEPM)

...Effects of Sphericity, Roundness, and Velocity on Traction Transportation of Sand Grains William J. Morris 1957 Vol. 27 No. 1. (March), Detrital...

1957

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... acceptance for structural imaging and tomographic velocity analysis in geologically complex depositional environments (Gray et al., 2006...

2016

Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation

Zhishuai Zhang, Jing Du, Fuchun Gao

Unconventional Resources Technology Conference (URTEC)

...Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation Zhishuai Zhang, Jing Du, Fuchun Gao URTeC: 2652022...

2017

A Phase Diagram for Turbulent, Transitional, and Laminar Clay Suspension Flows

Jaco H. Baas, James L. Best, Jeffrey Peakall, Mi Wang

Journal of Sedimentary Research (SEPM)

... (approximated by the horizontal components of flow velocity and turbulence intensity) and cohesive forces (approximated by the suspended clay...

2009

Challenges of Sub-Thrust Imaging Using Broadband Three-Dimensional Seismic Data: a Case Study in the Outer Banda Arc, Indonesia

Masamichi Fujimoto, Yonghe Guo, Anky Fatwa, Yuki Sasaki

Indonesian Petroleum Association

... prestack depth migration (PrSDM) velocity modeling and imaging were utilized for the study. The paper will describe the benefits of broadband seismic...

2014

Geological Factors Influencing Porosity Estimates From Velocity Logs

Roberto Sarmiento

AAPG Bulletin

...Geological Factors Influencing Porosity Estimates From Velocity Logs Roberto Sarmiento 1961 633 644 45 5. (May) The close relation between acoustic...

1961

Turbulence Modulation in Clay-Rich Sediment-Laden Flows and Some Implications for Sediment Deposition

Jaco H. Baas, James L. Best

Journal of Sedimentary Research (SEPM)

... in a distinct change in velocity and turbulence structure in flows transitional between Newtonian and non-Newtonian behavior. Such transitional flows develop...

2002

2D Pre-Stack Depth Migration : Application to Inverted Grabens

C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti

Indonesian Petroleum Association

... is critical at the prospect evaluation stage. These types of zones give rise to strong velocity variations for which the concept of CDP breaks down...

1993

Results of Elastic-Wave Surveys in California and Elsewhere

Frank Rieber

AAPG Bulletin

... in these loosely consolidated materials, velocity of wave transmission varies in general with depth of original overburden, and correlations based...

1930

Flow velocity model for a coastal estuarine sandbar using multivariate regression

Edlic Sathiamurthy, Nurul Syamimi Pauzi

Geological Society of Malaysia (GSM)

...Flow velocity model for a coastal estuarine sandbar using multivariate regression Edlic Sathiamurthy, Nurul Syamimi Pauzi Bulletin of the Geological...

2020

Investigating Natuna Carbonate Platform Complexities Through Integration of Multi-Geophysical Datasets From Seismic FWI PSDM Reprocessing

Muhammad Nauvall Juliansyah

Indonesian Petroleum Association

... processing. Three geophysical datasets including PSDM seismic stack, velocity, and variance are utilized as the main datasets. Volumes were flattened...

2022

Abstract: Velocity Dispersion in Field Seismic Data: Impact, Detection and Application; #90211 (2015)

Langqiu Sun

Search and Discovery.com

...Abstract: Velocity Dispersion in Field Seismic Data: Impact, Detection and Application; #90211 (2015) Langqiu Sun Datapages/Search and Discovery...

2015

Problems in Reflection Seismology

G. H. Westby

Tulsa Geological Society

... deal primarily with only the longitudinal. 'The velocity of travel of a longitudinal wave in rocks may be represented by the formula where I...

1934

Improving subsalt images using reflection FWI on WAZ data: Examples from the Gulf of Mexico

Maksym Kryvohuz, Yihua Cai, Sebastian Ramirez, Robert Schelstrate, Gislain Madiba

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Sebastian Ramirez, Robert Schelstrate, Gislain Madiba, Shell International Exploration and Production Company Summary Accurate velocity model is critical...

2022

DAS dispersion image analysis for landslide monitoring

Steve Cole, Paul Clarkson, Martin Karrenbach, Victor Yartsev

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the field from ambient noise data to monitor an active landslide. We look for evidence of time-lapse velocity changes in the dispersion images themselves...

2022

Automated velocity model building using Fourier neural operators

Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

...Automated velocity model building using Fourier neural operators Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui...

2023

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