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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
Abstract: Regime Rays: Visualizing the Fermat/Snell Loci in Homogeneous Anisotropic Media; #90171 (2013)
William J. Vetter
Search and Discovery.com
...-paths velocity distributions {vAPPARENT, vTIME-AVE, vRMS, vPATH-MEAN}; also lPATH which are true pathlengths for intangible FS-ray loci. All this comes...
2013
ABSTRACT: Geostatistical Shale Models for a Deltaic Reservoir Analog: From 3D GPR Data to 3D Flow Modeling; #90013 (2003)
HONGMEI LI, CHRISTOPHER D. WHITE
Search and Discovery.com
... by calibrating the GPR attributes (amplitude) to well data (gamma ray logs). Shale occurrence must be deduced from well log data and related to GPR...
2003
Comparison of Petrographic Characteristics of Selected Carbonate Rocks to their Petrophysical Log Response--Smackover Formation (Upper Jurassic)
Alfred A. Biehle , Carey M. Crocker
GCAGS Transactions
... in these zones (Schlumberger, 1979). Gamma Ray Log The Gamma Ray Log is a record measuring natural radioactivity versus depth (Schlumberger, 1972...
1987
Utilizing the Two-Way Wave Equation: Reverse Time Pre-Stack Depth Migration
Matthew H. Karazincir, Clive M. Gerrard, Andrew Long, Lynn B. Comeaux
Indonesian Petroleum Association
...Utilizing the Two-Way Wave Equation: Reverse Time Pre-Stack Depth Migration Matthew H. Karazincir, Clive M. Gerrard, Andrew Long, Lynn B. Comeaux...
2008
Discussing Demigration Uncertainties Applied to Active Focused Seismic Monitoring
Baptiste Penot, Bruce Webb, Michele Buia, Gianluca Dell’Elce
Carbon Capture, Utilization and Storage (CCUS)
... the process is highly non-linear (Cerveny, 2000) and uses local model values. Therefore, changing a velocity model or a horizon depth is expected...
2025
Determination of Depth Models Through Self-Consistent Structural Modeling to Help Delineate Hydrocarbon Traps in the Uinta Basin
Alvin K. Benson
Utah Geological Association
... at the surface is to use ray tracing which represents an approximate solution to the wave equation. Starting at the bottom of the velocity model, raypaths...
1992
Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance
Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... , (7) where, Vnmo is the NMO velocity, and V0 is the velocity of the seismic wave traveling vertically; is the azimuthal angle between seismic ray...
2016
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)
... is challenging. Conventional ray-based tomographic methods may have issues due to the large velocity contrasts between salt and sediment. Different from...
2022
Porosity-Velocity Distribution in Stratigraphic Sequences: The Marion-Yin Model, by Juan Florez and Gary Mavko, #40105 (2003).
Search and Discovery.com
2003
STRUCTURAL INTERPRETATION OF THE SOUTHERN HALF OF THE SAWTOOTH SALIENT OF THE MONTANA DISTURBED BELT
Stephen P. Gardner, Jonathan M. Achuff
Montana Geological Society
... the locations of individual interface segments identified from linear and curved features in the seismic sections. Ideally, the ray path...
1989
Abstract: Tau-P Seismic Data Processing: Fast Slant Stack Using the Hartley Transform
Leong Lap Sau, Ng Tong San
Geological Society of Malaysia (GSM)
... examines the transfonned versus wavefonn in the f-k domain, slant stack analysis looks at the intercept time horizontal phase velocity or the ray parameter...
1991
Abstract: Digital Log Data to Mechanical Rock Properties for Stimulation Design; #90224 (2015)
E. R. (Ross) Crain and Dorian Holgate
Search and Discovery.com
..., but older data sets usually need adjustment. An expanded depth plot is useful for this – typically gamma ray is taken as being on depth and the other...
2015
Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada
M. W. Lee, T. S. Collett, W. F. Agena
AAPG Special Volumes
... sediments in the depth interval 600900 m (19682953 ft) is estimated to be approximately 65 using equation 4, with the interval velocity of 2100 m...
2009
Reviving an old Buffalo - Breathing new life into an old dataset with modern technology
R. McGee, H. Debenham, P. Hoiles, A. O'Neill, J. Miller, A. Padman
Petroleum Exploration Society of Australia (PESA)
... highlight the large margin of error associated with the legacy velocity model and associated depth maps of the field. Citation: McGEE, R., DEBENHAM, H...
2019
An Overview of Ray Trace Modeling with an Example from the Wichita Mountain Front in Southern Oklahoma
Jan Dodson, Roger A. Young, Kevin Smart
Oklahoma City Geological Society
... Oklahoma was used. The ray trace model was designed to replicate post-stack seismic data. VELOCITY-DEPTH MODEL Three intermediate steps were necessary...
2001
Finite Difference Modelling: Part IV
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... the discussion that was started in GEO ExPro Vol. 15, No. 2. The finite difference method applied to the acoustic wave equation gives beautiful wave...
2019
The impact of organic pores on estimation of overpressure generated by gas generation in organic-rich shale: Example from Devonian Duvernay Shale, Western Canada Sedimentary Basin
Pengwei Wang, Zhuoheng Chen, Kezhen Hu, and Chen Xiao
AAPG Bulletin
... of gamma ray greater than 70 API was applied to the data set to remove sandy and carbonate intervals. The matrix porosity trend with depth (a normal...
2023
Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological Structure, Western Berau - Papua, Indonesia
Purbo Santoso, Yayat Supriatna, Tepy Septyana, Leo Tjahjadi, Yonghe Guo
Indonesian Petroleum Association
... depth (well above the reservoir level), restricting where the Orthorhombic FWI can reliably update the velocity model. Ray-based tomography was therefore...
2019
Workflow for Nonlinear AVO Inversion to Estimate Seismic Anisotropy and Geomechanical Properties of Shale
Un Young Lim, Richard L. Gibson Jr., Nurul Kabir
Unconventional Resources Technology Conference (URTEC)
... AVO inversion using the exact Zoeppritz solutions instead of its linear approximation. It allows estimation of seismic anisotropy and furthermore...
2019
Simultaneous Joint Inversion of Seismic, Magnetotelluric and Gravity in a Sub-Volcanic Reservoir
Muhammad Irsyad Hibatullah, Maulana hutama Rahma Putra, Firman Syaifuddin Akbar, Dwa Desa Warnana, Fahrenzy Yona Aisha
Indonesian Petroleum Association
... and choose the best model for will be converted to the Vp by equation (1) and (2) and considered as the final interval velocity there can be used...
2019
Practical considerations for computing the kernels of reflection-based full-waveform inversion
Houzhu (James) Zhang, Hong Liang, Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
...) are not added and the transmission term in equation (1) does not contain the strong velocity variations at depth of 1 km (Figure 1). Finally...
2022
The Prediction of Strength in the Sediments of St. Andrew Bay, Florida
C. W. Holmes, H. G. Goodell
Journal of Sedimentary Research (SEPM)
... with 0 being the intercept value for the total equation. Only three variables, the percentage of water in the sediment, the depth in the core...
1964
Abstract: Wave-Climate Studies in Baltimore Canyon Trough OCS--Environmental Implications, by V. Goldsmith, R. A. Gammisch, P. S. Rosen; #90968 (1977).
Search and Discovery.com
1977
Quantification of Total Organic Carbon Content in Shale Source Rocks: An Eagle Ford Case Study
Adel A. Alqahtani, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... it to empty-hole conditions. Crossplot of gamma-ray intensity and formation density showed a linear relationship in the Devonian shale in most of western part...
2014
Petrophysical Evaluation of Organic Richness and Brittleness of Shale for Unconventional Hydrocarbon Prospecting: A Case Study on Vadaparru Shale, Krishna Godavari Basin, India
Arijit Sahu, Milan Kanti Das
Unconventional Resources Technology Conference (URTEC)
... with depth in the studied wells. Methodical approaches In order to evaluate shale organic richness standard wireline logs of gamma ray (GR), deep...
2019