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The AAPG/Datapages Combined Publications Database
Showing 73,109 Results. Searched 200,357 documents.
Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)
Oluwafemi Ogunsuyi, Douglas R. Schmitt
Search and Discovery.com
... of a tomographic velocity model, the reprocessing of the reflection seismic and its corresponding depth migration using velocities derived from the traveltime...
2014
Abstract: Near-surface Velocity Modeling through a Computationally Efficient Implementation of 1.5D Laplace-Fourier Full Waveform Inversion; #91204 (2023)
Apostolos Kontakis, Diego Rovetta, Daniele Colombo, Ernesto Sandoval-Curiel
Search and Discovery.com
... information in the inversion process. The objective function is minimized by a nonlinear conjugate gradients, producing a single 1D velocity model per...
2023
Transformation of Resistivity to Pseudovelocity Logs
Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs
AAPG Bulletin
...., 1951, Seismic velocity as a function of depth and geologic time: Geophysics, v. 16, p. 192-206. End_Page 1164------------------------------ Faust...
1975
Abstracts: Evidence of Shallow Gas in the Queen Charlotte Basin from Waveform Tomography of Seismic Reflection Data; #90173 (2015)
Eric M. Takam Takougang and Andrew J. Calvert
Search and Discovery.com
... and perturbation velocity models derived from the inversion are displayed in Figure 2. The maximum depth of penetration is limited to 1.2 km due...
2015
The Relationship Between the Compressional Wave Velocity of Saturated Porous Carbonate Rocks and Density: Theory and Application
Search and Discovery.com
N/A
A Breakthrough of Bekapai Converted S-Wave Processing and its Positive Impact to Structural Interpretation
Effendy Siawira, Andy Kristianto, Jaques Bonnafe, Natalia Anggriani, Cepi M. Adam, Zainal Abidin, Firman B. Kurniawan, Supriady, Claudio Strobbia, Yang Liu, Youning Li, Xiagui Miao, Libo Zi, Guishui Wang
Indonesian Petroleum Association
... by using a known P-wave velocity model to build a S-wave velocity model and update anisotropic parameters for PS wave depth migration. P-wave depth...
2015
Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia
Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow
International Meeting for Applied Geoscience and Energy (IMAGE)
... low-cut filtered well logs. Velocity model results The five seismic partial-angle stacks were generated using Q-PSDM with the final high-resolution...
2022
Land seismic multi-parameter FWI imaging
Mason Phillips, James McLeman, Vlada Avramovic, Tom Rayment, Stuart Schmitt, Mike Varner, Yasser Khalifeh, Ahmad Ammar Chahine, Eskil Jersing
International Meeting for Applied Geoscience and Energy (IMAGE)
... the workflow. In parallel with the preprocessing, an initial velocity model was built using refraction tomography in the near-surface and smoothed depth...
2024
Abstract: Biot-Gassmann Fluid Term Extraction Based on PP-PS Joint Inversion;
Qi Ma
Search and Discovery.com
... of generalized linear inversion and the iterative reweighed least-squares algorithm are applied to solve this function. Tests with synthetic data show...
Unknown
Basin-Scale Rock Physics Study and Stochastic AVO Modelling for the Deep Water Kutei Basin (East Kalimantan Indonesia)
Gabriela Carrasquero, Alessandro Amato del Monte, Fabio Luoni, Paolo Battini, Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Nasif Khifni
Indonesian Petroleum Association
...). The statistical relationship used to establish the variation of velocity and density with depth was linear, given that it represents a simple yet...
2014
Sedimentologic and Physical Oceanographic Evidence of a Shelf Edge Counter Current Off Guinea Bissau, Guinea and Sierra Leone
David W. McGrail
Journal of Sedimentary Research (SEPM)
... for the calculation of the Ekman number. Commonly, the scale of choice for E is a mean depth characterizing the area of interest. By using a horizontal scale...
1977
ABSTRACT: Analysis of Moho Depth and Crustal Vp/Vs Ratios in the Western U.S.; #90113 (2010)
Kristopher A. Castille and Harold Gurrola
Search and Discovery.com
... The purpose of this study is to analyze the Mohorovičić discontinuity, commonly referred to as the Moho, using seismic receiver function analysis...
2009
Fault Shadow Issues and Resolution in Model and Real Data
Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
... in depth. The velocity model was built using the layer-by-layer depth interval velocity modeling technique and iterative Pre-SDM. Applying the more...
2002
A Note on the Preservation of Offshore Tsunami Deposits
Robert Weiss, Heinrich Bahlburg
Journal of Sedimentary Research (SEPM)
... in at a water depth of between 50 and 100 m. Using linear wave theory, this study explores the water depth at which a potential tsunami deposit is protected...
2006
Wavefield Extrapolation for Prestack Time Migration with RMS Velocity: Part I Algorithm
Jianhua Pan
Search and Discovery.com
... to convert rms velocity to interval velocity by using Dix’s equation. Time migration can be viewed as a valid imaging process but its imaging...
Unknown
Wavefield Extrapolation for Prestack Time Migration with RMS Velocity: Part I Algorithm
Jianhua Pan
Search and Discovery.com
... to convert rms velocity to interval velocity by using Dix’s equation. Time migration can be viewed as a valid imaging process but its imaging...
Unknown
Elastic full-waveform inversion at regional scale for the northern Gulf of Mexico
Yao Yu, Anastasia Pavlovskaya, Kim Shoemaker, Hongyan Li, Jennifer Qin, David Derharoutian Jr., John Law, Zhao Ge, Ruth Hammans, Vivian Robertson, Kate Glaccum
International Meeting for Applied Geoscience and Energy (IMAGE)
... of an acoustic versus elastic FWI update to P-velocity, using the same smoothed salt body input model, and same ETM objective function at a low frequency...
2024
An Inverse Approach for Relating Seismic Velocity and Overpressure to Permeability and Sedimentation History in Deep Basins, #40863 (2012)
Hector M. Moreno, Tim A. Minshull, Rosemary A. Edwards,
Search and Discovery.com
... evolution with depth and an empirical law for the permeability as a function of porosity. Model output has been used to estimate the P wave velocity...
2012
Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones
Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju
Indonesian Petroleum Association
... aspects, we focused on the value of information obtained by using advanced processing flows, such as a 3D depth-tied velocity model construction using...
2013
Cimatti Field An example of using seismic amplitude to determine in-place resource
Michael Micenko
Petroleum Exploration Society of Australia (PESA)
... and the added constraint that the line passes through the origin (Figure 5) a linear function can be defined. 2 Cimatti Field Micenko These Geosphere based...
2019
Time-lapse seismic joint inversion based on Zoeppritz equation in depth domain
Wenjin Li, Jingye Li, Lei Han, Zhen Liao
International Meeting for Applied Geoscience and Energy (IMAGE)
... is: T =∫ λ 0 dh v (h) (2) By giving seismic velocity and time domain seismic wavelet, the point spread function can be calculated using equation (2...
2024
Abstract: Kinematic Forward Modeling of Salt Using the Elastic Dislocation Method with Mapped Geologic Point Attributes and Solution Incrementation; #91204 (2023)
Seth Busetti, Lauren Reeher
Search and Discovery.com
... position. For example, the crest of the salt wall can be assigned to move upward as a function of depth whereas the flanks of the salt can be assigned...
2023
Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution
Peng Yong, Romain Brossier, Ludovic Mtivier
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity and density model and the calculated data using the initial velocity model with the true density (b) and with homogeneous density model (c...
2022
Q-compensated least-squares reverse time migration by considering velocity and Q perturbations
Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... iteration after the Laplacian filter. In this paper, a Q-compensated least-squares reverse time migration with both velocity and Q is proposed by using...
2022
The use of FWI in coal exploration
Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic
Petroleum Exploration Society of Australia (PESA)
...) of surface receivers. Despite using a short receiver array (array length maximum depth), we were able to improve the initial models and reconstruct...
2018