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The AAPG/Datapages Combined Publications Database

Showing 28,831 Results. Searched 196,763 documents.

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Seismic Foldout: FWI Imaging Under Complex Geological Anomalies

Adriana Citlali Ramirez, Simon Baldock, Stuart Fairhead, TGS

GEO ExPro Magazine

... of shallow collapsed mass transport complexes (MTCs) with a highly variable velocity structure cause Figure 3: Sleipner OBN for CCS (Carbon Capture...

2023

Prediction and Analysis of Geomechanical Properties of the Upper Bakken Shale Using Artificial Intelligence and Data Mining

George K. Parapuram, Mehdi Mokhtari, Jalel Ben Hmida

Unconventional Resources Technology Conference (URTEC)

... velocity is first predicted by linear methods and neural networks. Shear wave velocity is crucial in making reliable calculations, especially...

2017

Full waveform inversion of simultaneous long-offset data

Nizar Chemingui, Alejandro A. Valenciano, Andrew Long

Petroleum Exploration Society of Australia (PESA)

... Perth, WA, 6005, Australia [email protected] SUMMARY The standard workflow for velocity model building (VMB) in complex regimes is an interpretive...

2019

Statistical Mitigation of Depth Structure Uncertainty Using Multiple Realizations for the Ujung Pangkah Field

Donald Easley, Ferry Yustiana, Willy Brianno

Indonesian Petroleum Association

... predictions. However, there are still areas with uncertainty due to lack of well velocity information. The second major variable is the velocity field...

2011

Application of Seismic Surveying to Direct Exploration for Oil and Gas

A. M. Ivanchuk, L. F. Tarkhova

Petroleum Geology: A Digest of Russian Literature

... and velocity of propagation of waves and density of rocks in comparison with actual time sections obtained with variable frequency analysis. Prognostic...

1974

Abstract: Detailed structure of a magma-poor continent-ocean transition offshore northeastern Nova Scotia, Canada based on an along-strike wide-angle seismic profile (OCTOPUS)

K. W. Helen Lau, Mladen R. Nedimović, Keith E. Louden

Atlantic Geology

... section resulted in a detailed P-wave velocity model. This model shows a mostly laterally uniform sedimentary section except for the Valanginian...

2018

ABSTRACT Shear-Wave Velocity Anomalies and High Vp/Vs Ratios at Shallow Depths Below a Distressed Artificial Levee Marrero Louisiana USA, #90104 (2010)

Lorenzo Juan M.; Hicks Jason; Vera Emilio E.

Search and Discovery.com

...ABSTRACT Shear-Wave Velocity Anomalies and High Vp/Vs Ratios at Shallow Depths Below a Distressed Artificial Levee Marrero Louisiana USA, #90104...

2010

Abstract: Subsalt Seismic Modeling and Illumination Analysis in Red Sea Transition Zone; #90254 (2016)

Ewenet Gashawbeza, Hongwei Liu, Saleh AL-Saleh

Search and Discovery.com

... velocity field, acquisition geometry, and a high fidelity algorithm. In this study, two modeling techniques were used: (1) ray-based that is fast...

2016

Effects of near Surface Lithology on Velocity Modelling and Time„Depth Relationships in the Cooper„Eromanga„Lake Eyre Basin

Anna Manka, Glen Buick, Rob Menpes, Luke Gardiner, Cameron Jones, Khalid Amrouch

Australian Petroleum Production & Exploration Association (APPEA) Journal

.... The velocities derived from the sonic log were highly variable through the formation, aside from an upper section which showed a consistent velocity profile...

2018

Structural and Tectonic Evolution of Oceanic Crust within the Jurassic Quiet Zone, Offshore Morocco: Chapter 14: African and Mediterranean Margins

James S. Holik, Philip D. Rabinowitz

AAPG Special Volumes

... velocity spectra analysis define a velocity inversion between the UCF (4.7 km/sec) and the underlying sediments (3.1 km/sec). A deep crustal layer...

1992

Synthetic Seismograms from Vibracores: A Case Study in Correlating the Late Quaternary Seismic Stratigraphy of the New Jersey Inner Continental Shelf

Dominic Esker , Robert E. Sheridan , Gall M. Ashley , Jeffrey S. Waldner , David W. Hall

Journal of Sedimentary Research (SEPM)

..., we use median grain size as the primary independent variable for calculating acoustic properties (proxy for density and velocity) in siliciclastic...

1996

Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring

Galina Simeonova, Dmitry Alexandrov, Toufik Chtouki, Petr Kolnsk, Leo Eisner, Tijmen Jan Moser, Umair Waheed, Sherif Hanafy, Barbara Cox

International Meeting for Applied Geoscience and Energy (IMAGE)

...Interferometry derived S-wave velocity model with geological constrains for induced seismicity monitoring Galina Simeonova, Dmitry Alexandrov, Toufik...

2022

Pore Pressure Modeling Using Multivariate Geostatistics, #42299 (2018).

Flavia Braz Ponte, Francisco Fabio de Araujo Ponte, Adalberto da Silva, Alberto Garcia de Figueiredo Jr.,

Search and Discovery.com

... information from wells as predicted variable as well as a pore pressure volume estimated from seismic interval velocity, as secondary information...

2018

How distinctive are flood-triggered turbidity currents?

Catharina J. Heerema, Matthieu J.B. Cartigny, Ricardo Silva Jacinto, Stephen M. Simmons, Ronan Apprioual, Peter J. Talling

Journal of Sedimentary Research (SEPM)

... to identify river-flood-triggered turbidite deposits, which are largely based on the assumption that a characteristic velocity structure of the flood...

2022

Xu and White Revisited (Paper C8)

M. Sams, T. J. Focht, N. Azuairi Che Sidik

Geological Society of Malaysia (GSM)

...-plots of measured S-velocity versus modelled S-velocity using (a) fixed aspect ratio for quartz and clay and (b) variable aspect ratio for total...

2012

Diffusion and Settling of Sediments at River Mouths: A Computer Simulation Model

G. F. Bonham-Carter, Alex J. Sutherland

GCAGS Transactions

... the velocity field and the rates of sediment diffusion. By adjusting the input parameters, a variety of "delta" deposits may be created. The shape...

1967

Geophysical Log Responses to Variatons in Lithology in Borings Clino and Unda, Great Bahama Bank

E. Robert Warzeski, Leslie A. Melim, Robert N. Ginsburg

Special Publications of SEPM

... The reef has much higher and more water variable density and sonic velocity Some of the peaks coincide available for the upper 200 m of Clino...

2001

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

...Diving wave tomography: Velocity modelling using first arrival traveltime Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu Bulletin...

2022

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

Hydraulic Factors Controlling the Shape of Laminae in Laboratory Deltas

Alan V. Jopling

Journal of Sedimentary Research (SEPM)

... to eliminate the effect of this variable. Increase in velocity at constant depth of flow.--The relationship between velocity and depth of streamflow...

1965

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

... the complexity of the overburden consists of several thin multilevel channel systems filled with a combination of anomalously high or low velocity sediments...

2014

Machine Learning Prediction and the Impact of CO₂ Injection on S-Wave in 20 Years in the Legacy Well Field

Sharif Morshed, Shafiqul Alam Khan, Wu Hao

Unconventional Resources Technology Conference (URTEC)

... velocity designated as the dependent variable for prediction (Figure 1). Initialization of the model involves its training on the MW01, MW02, and MW03 zero...

2024

Bed Configurations in Steady Unidirectional Water Flows. Part 2. Synthesis of Flume Data

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

.... (September), Data from 39 flume studies that report equilibrium bed configuration as well as water temperature, flow depth, flow velocity...

1990

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