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The AAPG/Datapages Combined Publications Database
Showing 70,304 Results. Searched 196,371 documents.
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
... were included in the initial velocity model for depth imaging. Figure 2. Weathering velocity model derived using the Tau-P tomography and up-hole...
2015
Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)
Amsalu Y. Anagaw, Mauricio D. Sacchi
Search and Discovery.com
... the gradient of the objective function, which can be minimized using the adjoint-state method (Plessix, 2006). To solve the actual inversion process...
2015
Abstract: Forward Modeling of Log Response in Geopressured Formations Reveals Valuable Insights to the Various Pore Pressure Prediction Techniques, by J. C. Rasmus; #90923 (1999)
Search and Discovery.com
1999
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... difficulties for conventional raybased reflection travel-time tomography. Figure 3 - Initial velocity and refraction energy penetration analysis (Depth...
2023
Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12
E. W. Peikert
AAPG Special Volumes
... velocity as a function of depth and geologic time: Geophysics, v. 16, p. 192-206. Levin, F. K., 1978, The reflection, refraction, and diffraction of waves...
1985
A New Approach to Time Depth Conversion and Depth Error Estimation for 2D Interpretation Using Seismic Velocities
Rosidah Hardiani, Sanisah Soed, Lothar Schulte
Indonesian Petroleum Association
... is more accurate than depth converting the interpolated time horizons. In addition the lower horizon was depth converted using the average velocity...
2013
Velocity for Pore Pressure Prediction Modeling and Risk Assessment
Selim Simon Shaker
GCAGS Transactions
...). Red dashed trend represents the average FFP vs. depth. Predicting the pressure in this zone, using seismic velocity, is a challenging task...
2016
ABSTRACT: A Comparison of Depth Conversion Methods in the Gulf of Mexico, by Melvan D. Carter, Gary R. Hyatt; #90999 (1990).
Search and Discovery.com
1990
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
Comprehensive Study of Elasticity and Shear-Viscosity Effects on Proppant Transport Using HFVRs on High-TDS Produced Water
Mohammed Ba Geri, Ralph Flori, Huosameddin Sherif
Unconventional Resources Technology Conference (URTEC)
... of the effects of elasticity and shear viscosity on proppant settling velocity using HVFRs and linear gel in fresh water and produced water. Two cases were...
2019
Shear Velocity Prediction and its Rock Mechanic Implications, #41296 (2014)
Yexin Liu, Zhuoheng Chen, Kezhen Hu
Search and Discovery.com
... velocity and density can be inverted using current advanced pre-stack seismic inversion technique from seismic AVO angle gathers (Russell et al. 2005). Like...
2014
Combined Diving Wave Refraction Tomography and Reflection Tomography for PSDM Velocity Model Building (Bekapai Field, Indonesia)
Andi Kusuma, Florent Bertini, Jacques Bonnafe, Artem Sazykin, Swee Leng Ng
Indonesian Petroleum Association
... was available, we built our starting model using an average and scaled function derived from the picked interval velocity field (Figure 4). This single velocity...
2011
Deep Dix: Enhancing interval velocity model estimation through adversarial regularization
Joseph Stitt, Robert Clapp, Biondo Biondi
International Meeting for Applied Geoscience and Energy (IMAGE)
... goals when using a standard roughening regularizer as 0 ≈ W[Cu − d] O(m) = ∥(Fm − d)∥2 + ϵΨΘ (m) 2 (1) where our objective function output O(m...
2023
EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting
Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez
GCAGS Transactions
... depth migration (PSDM), limitations in computer resources meant that PSDM was reserved for the final run, with velocity analysis using time migration...
2010
Application of Robust Noise Reduction on a Land 3D Seismic Data
Agus Abdullah, Jesse Shaw
Indonesian Petroleum Association
... estimates can then be obtained as s ˆ sp = o vn ˆ and v p = vn so = λr f . Once all shots are processed for the phase velocity estimates using...
2012
Mainstream Mantle Convection: A Geologic Analysis of Plate Motion
T. H. Nelson , P. G. Temple
AAPG Bulletin
... material balance when the convective component is added to the system. The assumption that the increase in mainstream velocity with depth is linear...
1972
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
Effective Use of Seismic and Well Velocities to Build a Regional Velocity Field for Depth Conversion
Search and Discovery.com
N/A
Subsalt Velocity Trend and Its Spatial Variation in the Central Gulf of Mexico
Search and Discovery.com
N/A
Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).
Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones
Search and Discovery.com
... velocity model. Even with a simple background Q-model, a detailed velocity model can be retrieved using this approximate, phase-only, visco-acoustic...
2016
Simultaneous inversion of velocity and angle-dependent reflectivity
Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai
International Meeting for Applied Geoscience and Energy (IMAGE)
... directly generated and updated at each iteration using the updated velocity and reflectivity fields, without the need for additional migrations...
2023
Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)
Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman
Search and Discovery.com
...Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014) Roohollah Askari, Robert J. Ferguson...
2014
Abstract: Tomography of a Velocity Modeland Location of Microseismic Events with P, Sv and Sh Waves; #90224 (2015)
Malgorzata Chmiel and Thomas Bardainne
Search and Discovery.com
... time-based cost function using a subset of 13 strongest microseismic events. The relationship between travel times and distance is non-linear...
2015
Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)
Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan
Search and Discovery.com
... geophysicists. For clarity, we present the central theoretical result behind FWI as a mathematical theorem stating that a linear update to a migration velocity...
2015
Geological Factors Influencing Porosity Estimates From Velocity Logs
Roberto Sarmiento
AAPG Bulletin
.... 216, p. 262-270, T.P. 8085. Faust, L. Y., 1951, Seismic velocity as a function of depth and geological time: Geophysics, v. 16, no. 2, p. 192-206...
1961