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The AAPG/Datapages Combined Publications Database

Showing 34,457 Results. Searched 200,357 documents.

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The importance of viscoelastic waveform inversion in VSP: Synthetic studies

Yu Chen, Shujaat Ali, Takashi Mizuno, Pierre Bettinelli, Jol Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

... of velocity inversion is critical in the case of vertical seismic profile (VSP) processing, not only in relation to waveform inversion, but also at the more...

2022

SYNTHETIC SEISMOGRAMS

Search and Discovery.com

N/A

Combined elastic FWI of accelerometer and DAS VSP data from a CO2 sequestration test site in Newell County, Alberta

Matthew Eaid, Scott Keating, Kristopher Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

...Combined elastic FWI of accelerometer and DAS VSP data from a CO2 sequestration test site in Newell County, Alberta Matthew Eaid, Scott Keating...

2022

Abstract: Forward Modelling Study of 2D Finite Difference Reverse-Time Migration for Downhole Seismic Data; #90224 (2015)

Dong Shi, Ramin Saleh, Bernd Milkereit

Search and Discovery.com

... is not suitable for dipping reflector and lateral velocity variation. Keho (1984) and Wiggins (1984) introduced Kirchhoff migration into VSP data imaging process...

2015

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... tracing based traveltime table generation of the Kirchhoff migration. Smoothing of the velocity model is usually performed to reduce these instabilities...

2015

Seismic Modeling of Acid-Gas Injection in a Deep Saline Reservoir

Search and Discovery.com

... are shown in Figure 1. Figure 1: The effect of reservoir rock VP on two-way traveltime differences resulting from fluid substitution. AAPG Search...

2013

Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada

Yichuan Wang, Donald C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

...Time-lapse attenuation variations during CO2 injection using DAS VSP data from the CaMI Field Research Station, Alberta, Canada Yichuan Wang, Donald...

2022

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... problem to adequately image reflections from targets (ore body). The perturbations in velocity and density are responsible for fluctuations...

2013

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... problem to adequately image reflections from targets (ore body). The perturbations in velocity and density are responsible for fluctuations...

2013

Velocity Dispersion and Attenuation in Vibroseis Data

L. Flora Sun

Search and Discovery.com

... frequency band. Broadband, long-baseline data are desirable to optimize measurements of small velocity dispersion. As for data acquisition geometry, VSP...

Unknown

Velocity Dispersion and Attenuation in Vibroseis Data

L. Flora Sun

Search and Discovery.com

... frequency band. Broadband, long-baseline data are desirable to optimize measurements of small velocity dispersion. As for data acquisition geometry, VSP...

Unknown

Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring

Leah J. Hogarth, Conrad Kolb, Joël Le Calvez

GCAGS Transactions

.... Measurements of the velocity field, reflectivity, and attenuation provide crosswell products such as traveltime and attenuation tomography (e.g., Carrillo...

2016

Elastic Wave Seismic Interpretation of Heavy-Oil Reservoirs

Search and Discovery.com

.../VS variations in a high-resolution mode, and it is possible to define thin beds. Unlike traveltime methods that deal with an integrated effect over...

2013

Time-lapse electromagnetic with Gramian

Jide Nosakare Ogunbo, Sang-Wook Kim, Arrey F. Enow

International Meeting for Applied Geoscience and Energy (IMAGE)

... four possible time-lapse effects can occur in a moment of time change. The time-lapse effect can be: a) Change in both space and resistivity values...

2023

Numerical modeling of PP and PS reflections in DAS VSP

Joseph J. Cherayil, James L. Simmons

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The purpose of the DAS VSP simulation is to determine the effect of dip on PP and PS reflection amplitudes. This project aimed to simulate the geometry...

2024

Abstract: Some Workstation Techniques for Defining Reservoirs in Difficult Data Areas; #90171 (2013)

Norm Kalmanovitch, Dennis Meisinger, and Randi Christiansen

Search and Discovery.com

... effect on the deconvolution process that the stacked data is usually limited in useable frequency content. This precludes conventional approaches...

2013

3D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway

Zhaolun Liu, Jrgen Hoffmann, Frederik J. Simons, Jeroen Tromp

International Meeting for Applied Geoscience and Energy (IMAGE)

...3D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway Zhaolun Liu, Jrgen Hoffmann, Frederik J. Simons, Jeroen...

2022

Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014)

Waheduzzaman Talukder and Ralph Phillip Bording

Search and Discovery.com

... effect and scattering of energy. Key words: Attenuation factor; centroid frequency down shift method; spectral ratio method; VSP Introduction...

2014

Multi-Azimuthal Walkway VSP for Full Azimuth Seismic Calibration

Konstantin Galybin, Anastasia Poole, Michael Giles

Petroleum Exploration Society of Australia (PESA)

... Surface Seismic to VSP One-way time total static solution provided for Walkaway VSP statics correction Waveform Processing Velocity Analysis...

2016

Abstracts: Sonic Scanner Logging at Site C0009 of IODP Expedition 319, NanTroSEIZE; #90173 (2015)

Hisao Ito

Search and Discovery.com

... = photoelectric effect, HRMS = High-Resolution Mechanical Sonde. B. Formation MicroImager (FMI)-Hostile Natural Gamma Ray Spectrometry Cartridge (HNGC)-Sonic...

2015

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)

... by depthvelocity curve. In the velocity model, there is an obvious interface with sudden change of velocity, which is the known top interface of high...

2022

Using Reflected Phases to Improve Depth Resolution of Microseismic Source Locations from Single-Well Observations

James Rutledge, Nobukazu Soma

Unconventional Resources Technology Conference (URTEC)

... of trial depth positions, matched their arrivals to ray-trace arrivals from two distinct velocity boundaries while also honoring the direct P...

2013

What Are You Interpreting? Your Seismic Image Could Be Misleading You!

R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... and Colombia highlight the necessity for an accurate velocity model and illustrate the dramatic effect of a small percentage change in velocity. Only...

2006

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