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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin
K. Bradey
Papua New Guinea (PNG) Petroleum Convention Proceedings
... which uses ray tracing to avoid the lim itations of the Dix equation. However, stacking velocity analyses were performed at one-kilometre intervals...
2000
Comparison of gas, Klinkenberg, and liquid permeability of sandstone: Flow regime and pore size
Tobias Orlander, Harald Milsch, and Ida Lykke Fabricius
AAPG Bulletin
... the pressure approach infinity. Thus, after deriving k g from Darcy’s equation for a series of pressures, Klinkenberg made a linear correlation of k...
2021
Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)
Tianfei Zhu
Search and Discovery.com
..., z) (1) 2u 2v 2 (x)u 0, where u u(x, ) is the wavefield and v(x) the velocity of the medium. The geometric-ray solution to this x-domain...
2014
-- no title --
user1
Search and Discovery.com
... migration involves continuously optimizing the velocity field in the depth domain to achieve accurate imaging. The accuracy of the shallow velocity model...
Unknown
Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations
Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau
Geological Society of Malaysia (GSM)
... not be used solely for suppressing high velocity linear noise and lessening back scattered energy. Other filtering options are available. INTRODUCTION...
1996
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... heterogeneous and appropriate for ray tracing. The velocity is used as first approximation of velocity field for pre-stack depth migration and updates...
2009
3D Pore Pressure Prediction Model in Bentu Block Central Sumatra Basin
Wawan A. Behaki, Aldyth Sukapradja, Ronald C. Siregar, Radig Wisnu Y, Setiabudi Djaelani, Benny A. Sjafwan
Indonesian Petroleum Association
... will decrease with depth and so the sonic velocity will increase with depth. Conversely, if undercompaction (overpressure) exists, ITT will increase and sonic...
2012
3D Pore Pressure Prediction Model in Bentu Block Central Sumatra Basin; #41105 (2012)
Wawan A. Behaki, Aldyth Sukapradja, Ronald C. Siregar, Radig Wisnu Y, Setiabundi Djaelani, and Benny A. Sjafwan
Search and Discovery.com
... decreases and density increases, and the rock becomes a much more efficient sonic conductor. The ITT will decrease with depth and so the sonic velocity...
2012
An Alternative Interpretation of Linear Dipping Events on 2-D Seismic Data from the Wichita Mountains Frontal Zone: Abstract
Jan M. Dodson, Roger A. Young, Kevin J. Smart
Tulsa Geological Society
... Permian sediments and Precambrian basement to give rise to complex seismic ray paths. High-amplitude linear dipping events visible on this 2D seismic...
2003
Petrophysical Classification of Siliciclastics for Lithology and Porosity Prediction from Seismic Velocities (1)
LEV VERNIK and AMOS NUR
AAPG Bulletin
... at comparable porosities to rocks in the first two groups. The compressional velocity-porosity relation for each of these groups is found to be linear...
1992
Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well
Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist
International Meeting for Applied Geoscience and Energy (IMAGE)
...rain-rate along the fiber cable. The axial strain-rate can be converted to axial velocity by integration along the depth axis (equation 2a). This...
2023
Abstract: A New Approach to Seismic Interpretation in Challenging Imaging Environments, by C. Edward Helsing and David C. Berman; #90067 (2007)
Search and Discovery.com
2007
Abstract: Application of Viscoacoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data; #90246 (2016)
Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones
Search and Discovery.com
... of the ray-based methods, two-way wave equation-based methods that derive a high-resolution attenuation model should be implemented. The second step...
2016
Quantitative X-Ray Diffractometry of Carbonate Rocks: RESEARCH METHOD PAPER
J. H. Fang, L. Zevin
Journal of Sedimentary Research (SEPM)
... of calcite, dolomite, quartz, pyrite, and anhydrite. THEORY As is well known, X-ray quantitative analysis is based on the equation of King and Alexander (1974...
1985
A Practical Model for Organic Richness from Porosity and Resistivity Logs
Q. R. PASSEY , S. CREANEY , J. B. KULLA , F. J. MORETTI , and J. D. STROUD
AAPG Bulletin
... (slow velocity) and a high gamma-ray intensity. Even though the derived I-x parameter has been shown in some wells to correlate roughly linearly...
1990
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
Abstract: Derivation of Seismic Depth Sections
H. Buchholtz, W. Houba
Geological Society of Malaysia (GSM)
... applying a horizon by horizon migration based on a ray tracing method. The resulting velocity distribution is then used in the wave equation...
1985
Ultrasound reverse time migration for human brain imaging
Ting Li, Bo Feng, Yang Zhou, Rongwei Xu, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...-order acoustic wave equation can be written as: 2P 2P 2P = v 2 2 + 2 +f , (1) 2 t z x where P is the pressure, v is the velocity...
2024
Abstract: Depth Velocity Model Optimization Using Beam Migration in a Mediterranean Field Offshore Egypt, by Ahmed El Bassiony, Bertrand Caselitz, Vira Matsourak, and Charles Zeltser; #90105 (2010)
Search and Discovery.com
2010
Land FWI in the Sultanate of Oman: Challenges and advances on the road to high-resolution velocity
Mohammad Sheryar Farooqui, Yonghe Guo, Azza Al Hasni
International Meeting for Applied Geoscience and Energy (IMAGE)
...., 2021). MWI uses surface and refracted waves traveling through the near surface to retrieve Vp and Vs velocity information. The penetration depth...
2024
Quantifying Velocity-Geology-Pressure Relationships in Core: The Foundations of a 4-D Seismic Feasibility Study in the Ichthys Gas-Condensate Field, NW Australia
Search and Discovery.com
N/A
ABSTRACT: A Hybrid Wave Equation Datuming and Kirchhoff PSDM Solution for Accurate Onshore Seismic Imaging, by Hu, Leon L.; Saleh, Saleh; Sliz, Krzysztof; Ley, Robert E.; #90141 (2012)
Search and Discovery.com
2012
ABSTRACT: Quantifying CO2 Saturation from Time-Lapse Well Logging in an Onshore Saline Aquifer, Nagaoka, Japan; #90061 (2006)
Ziqiu Xue, Jiro Watanabe, and Daiji Tanase
Search and Discovery.com
... sequestrated within the reservoirs. The major challenge is how to correlate wave velocity or electrical conductivity with fluid (CO2 or formation water...
2006
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... Solving the wave equation Complexity of velocity model Computer efficiency Steep dips Model building Kirchhoff Migration Ray tracing Moderate...
2010
Application of Sequential Offset Technique in Full Waveform Inversion; #42598 (2025)
Binggang Wang
Search and Discovery.com
... vital in high-accuracy depth migration imaging (Virieux et al. 2009). In the process of velocity modeling, shallow velocities are especially sensitive...
2025